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Rohde & Schwarz RTM2032 User Manual

Rohde & Schwarz RTM2032 User Manual

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R&S

RTM20xx

Digital Oscilloscope

User Manual

(=A_J2)

1317.4726.02 ─ 01

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Page 1 ® R&S RTM20xx Digital Oscilloscope User Manual (=A_J2) 1317.4726.02 ─ 01...
Page 2 ® This document describes the following R&S RTM models: ● ® R&S RTM2032 (5710.0999K32) ● ® R&S RTM2034 (5710.0999K34) ● ® R&S RTM2052 (5710.0999K52) ● ® R&S RTM2054 (5710.0999K54) In addition to the base unit, the following options are described: ●...
Page 3 Basic Safety Instructions Always read through and comply with the following safety instructions! All plants and locations of the Rohde & Schwarz group of companies make every effort to keep the safety standards of our products up to date and to offer our customers the highest possible degree of safety. Our products and the auxiliary equipment they require are designed, built and tested in accordance with the safety standards that apply in each case.
Page 4 Basic Safety Instructions Symbol Meaning Symbol Meaning Warning! Hot surface Alternating current (AC) Protective conductor terminal Direct/alternating current (DC/AC) Ground Device fully protected by double (reinforced) insulation Ground terminal EU labeling for batteries and accumulators For additional information, see section "Waste disposal/Environmental protection", item 1.
Page 5 Basic Safety Instructions Operating states and operating positions The product may be operated only under the operating conditions and in the positions specified by the manufacturer, without the product's ventilation being obstructed. If the manufacturer's specifications are not observed, this can result in electric shock, fire and/or serious personal injury or death. Applicable local or national safety regulations and rules for the prevention of accidents must be observed in all work performed.
Page 6 Basic Safety Instructions 6. The product may be operated only from TN/TT supply networks fuse-protected with max. 16 A (higher fuse only after consulting with the Rohde & Schwarz group of companies). 7. Do not insert the plug into sockets that are dusty or dirty. Insert the plug firmly and all the way into the socket provided for this purpose.
Page 7 Basic Safety Instructions 2. Before you move or transport the product, read and observe the section titled "Transport". 3. As with all industrially manufactured goods, the use of substances that induce an allergic reaction (allergens) such as nickel cannot be generally excluded. If you develop an allergic reaction (such as a skin rash, frequent sneezing, red eyes or respiratory difficulties) when using a Rohde &...
Page 8 Basic Safety Instructions 2. Adjustments, replacement of parts, maintenance and repair may be performed only by electrical experts authorized by Rohde & Schwarz. Only original parts may be used for replacing parts relevant to safety (e.g. power switches, power transformers, fuses). A safety test must always be performed after parts relevant to safety have been replaced (visual inspection, protective conductor test, insulation resistance measurement, leakage current measurement, functional test).
Page 9 Instrucciones de seguridad elementales Waste disposal/Environmental protection 1. Specially marked equipment has a battery or accumulator that must not be disposed of with unsorted municipal waste, but must be collected separately. It may only be disposed of at a suitable collection point or via a Rohde &...
Page 10 Instrucciones de seguridad elementales Se parte del uso correcto del producto para los fines definidos si el producto es utilizado conforme a las indicaciones de la correspondiente documentación del producto y dentro del margen de rendimiento definido (ver hoja de datos, documentación, informaciones de seguridad que siguen). El uso del producto hace necesarios conocimientos técnicos y ciertos conocimientos del idioma inglés.
Page 11 Instrucciones de seguridad elementales Símbolo Significado Símbolo Significado Aviso: Cuidado en el manejo de dispositivos Distintivo de la UE para la eliminación por sensibles a la electrostática (ESD) separado de dispositivos eléctricos y electrónicos Más información en la sección "Eliminación/protección del medio ambiente", punto 2.
Page 12 Instrucciones de seguridad elementales 1. Si no se convino de otra manera, es para los productos Rohde & Schwarz válido lo que sigue: como posición de funcionamiento se define por principio la posición con el suelo de la caja para abajo, modo de protección IP 2X, uso solamente en estancias interiores, utilización hasta 2000 m sobre el nivel del mar, transporte hasta 4500 m sobre el nivel del mar.
Page 13 Instrucciones de seguridad elementales 6. Solamente está permitido el funcionamiento en redes de alimentación TN/TT aseguradas con fusibles de 16 A como máximo (utilización de fusibles de mayor amperaje solo previa consulta con el grupo de empresas Rohde & Schwarz). 7.
Page 14 Instrucciones de seguridad elementales Funcionamiento 1. El uso del producto requiere instrucciones especiales y una alta concentración durante el manejo. Debe asegurarse que las personas que manejen el producto estén a la altura de los requerimientos necesarios en cuanto a aptitudes físicas, psíquicas y emocionales, ya que de otra manera no se pueden excluir lesiones o daños de objetos.
Page 15 Instrucciones de seguridad elementales Reparación y mantenimiento 1. El producto solamente debe ser abierto por personal especializado con autorización para ello. Antes de manipular el producto o abrirlo, es obligatorio desconectarlo de la tensión de alimentación, para evitar toda posibilidad de choque eléctrico. 2.
Page 16 Instrucciones de seguridad elementales 2. Las asas instaladas en los productos sirven solamente de ayuda para el transporte del producto por personas. Por eso no está permitido utilizar las asas para la sujeción en o sobre medios de transporte como p. ej. grúas, carretillas elevadoras de horquilla, carros etc. Es responsabilidad suya fijar los productos de manera segura a los medios de transporte o elevación.
Page 17 Customer Support Technical support – where and when you need it For quick, expert help with any Rohde & Schwarz equipment, contact one of our Customer Support Centers. A team of highly qualified engineers provides telephone support and will work with you to find a solution to your query on any aspect of the operation, programming or applications of Rohde &...
Page 18: Table Of Contents
® Contents R&S RTM20xx Contents 1 Preface....................9 Documentation Overview.....................9 Conventions Used in the Documentation..............10 1.2.1 Typographical Conventions...................10 2 Acquisition and Waveform Setup............11 Basics...........................11 2.1.1 Vertical System......................11 2.1.2 Sampling and Acquisition....................12 2.1.3 Horizontal System......................15 2.1.4 Probes...........................16 Setting up the Waveform....................20 2.2.1 Setting Up the Signal Input with Autoset...............20 2.2.2 Adjusting the Signal Input Manually................20...
Page 19 ® Contents R&S RTM20xx 4.1.1 Configuring the Display....................55 4.1.2 Display Menu........................57 XY-Diagram........................61 4.2.1 Configuring XY-Diagrams.....................62 4.2.2 XYZ Setup Menu......................64 Zoom..........................66 4.3.1 Zoom Display........................66 4.3.2 Zooming for Details.......................68 4.3.3 Zoom Menu........................69 Markers........................71 4.4.1 Using Timestamp Markers....................71 4.4.2 Reference for Markers....................73 5 Reference Waveforms.................74 Using References......................74 5.1.1 Displaying a Reference Waveform................74...
Page 20 ® Contents R&S RTM20xx Reference for Mathematics..................101 8 FFT.......................110 FFT Display........................110 Configuring and Using FFT Calculations..............111 8.2.1 Setting Up the FFT Analysis..................111 8.2.2 Configuring the Diagrams...................112 8.2.3 Measuring on FFT.......................115 Reference for FFT key....................115 9 Masks....................122 About Masks......................122 9.1.1 Masks..........................122 9.1.2 Mask Testing.......................122 9.1.3...
Page 21 ® Contents R&S RTM20xx 10.3.10 Events Menu.......................147 11 Protocol Analysis................148 11.1 Basics of Protocol Analysis..................148 11.1.1 Configuring Common Protocol Settings..............148 11.1.2 Protocol - Common Settings..................149 11.1.3 Display Settings......................150 11.1.4 Label List........................151 11.1.5 Frame Table: Decode Results..................154 11.2 SPI/SSPI Bus (Option R&S RTM-K1)...............155 11.2.1 The SPI Protocol......................155 11.2.2...
Page 22 ® Contents R&S RTM20xx 11.6.3 LIN Trigger Settings....................199 11.6.4 LIN Label List......................202 11.6.5 LIN Decode Results....................203 11.6.6 Search on Decoded LIN Data..................205 12 Mixed Signal Option (MSO, R&S RTM-B1)........208 12.1 About MSO.........................208 12.2 Digital Channels......................209 12.2.1 Digital Channels - Configuration Settings..............209 12.3 Parallel Buses......................211 12.3.1...
Page 23 ® Contents R&S RTM20xx 15.1.3 Switching to Remote Control..................248 15.1.4 Messages and Command Structure................248 15.1.5 Command Sequence and Synchronization..............259 15.1.6 Status Reporting System....................261 15.1.7 General Programming Recommendations..............272 15.2 Command Reference....................273 15.2.1 Conventions used in Remote Command Description..........273 15.2.2 Common Commands....................274 15.2.3 General Remote Settings and Queries...............277 15.2.4...
Page 24: Preface
® Preface R&S RTM20xx Documentation Overview 1 Preface 1.1 Documentation Overview The user documentation for the R&S RTM consists of the following parts: ● Online Help system on the instrument ● "Getting Started" printed manual in English ● Documentation CD-ROM with: –...
Page 25: Conventions Used In The Documentation
® Preface R&S RTM20xx Conventions Used in the Documentation The online help is included in the firmware update package. The help has to be updated separately to get the information suitable for the firmware version. The firmware and help update package is available in the "Downloads > Firmware" section on the Rohde & Schwarz "Scope of the Art"...
Page 26: Acquisition And Waveform Setup
® Acquisition and Waveform Setup R&S RTM20xx Basics 2 Acquisition and Waveform Setup The chapter describes the horizontal and vertical basic settings including the acquisition and probe settings. 2.1 Basics This chapter provides background information on the essential settings in the vertical and horizontal systems, on acquisition setup and probing.
Page 27: Sampling And Acquisition
® Acquisition and Waveform Setup R&S RTM20xx Basics Fig. 2-1: Input range and resolution of the ADC 2.1.1.3 Bandwidth For analog applications the highest signal frequency determines the required oscillo- scope bandwidth. As a rule of thumb, the oscilloscope bandwidth should be 3 times higher than the maximum frequency included in the analog test signal to measure the amplitude with high accuracy.
Page 28 ® Acquisition and Waveform Setup R&S RTM20xx Basics 2.1.2.1 Sampling and Processing The A/D converter samples the continuous signal under test at specific points in time and delivers digital values called ADC samples. The rate at which the converter is working is the ADC sample rate, a constant value usually specified in GHz: f = 1 / T The digital ADC samples are processed according to the acquisition settings.
Page 29 ® Acquisition and Waveform Setup R&S RTM20xx Basics Fig. 2-2: Waveforms acquired with different sample rates This means that the sample rate must be set to a value 3 to 5 times the fastest frequency component of the signal. A higher sample rate increases signal fidelity, increases the chance to capture glitches and other signal anomalies, and improves the zoom-in capa- bilities.
Page 30: Horizontal System
® Acquisition and Waveform Setup R&S RTM20xx Basics value of several adjacent sample points of the same waveform and displays it. The result is a moving average that uses the full data and can be used for non-periodic signals. 2.1.2.3 Acquisition Control You can run the R&S RTM in two ways: ●...
Page 31: Probes
® Acquisition and Waveform Setup R&S RTM20xx Basics 2.1.4 Probes A probe connects the signal source (DUT) to the oscilloscope, and delivers the signal to be measured. It is the essential first link in the measurement chain. An ideal probe fulfills the following requirements: ●...
Page 32 ® Acquisition and Waveform Setup R&S RTM20xx Basics Table 2-1: Voltage probes overview Probe type Attenuation Typical bandwidth Oscilloscope Usage range input Passive, high impe- 10 MHz Low speed, low level 1 MΩ dance signals Passive, high impe- 10:1 500 MHz 1 MΩ...
Page 33 ® Acquisition and Waveform Setup R&S RTM20xx Basics If you use passive probes, remember some recommendations: ● Use a probe recommended for your oscilloscope model. ● Use a ground lead as short as possible to minimize the effect of ground lead induc- tance.
Page 34 ® Acquisition and Waveform Setup R&S RTM20xx Basics length on both paths. It is also immune to interference and noise and occupies only one input channel. A differential probe has three sockets: the positive signal socket (+), the negative signal socket (-), and the ground socket.
Page 35: Setting Up The Waveform
® Acquisition and Waveform Setup R&S RTM20xx Setting up the Waveform 2.2 Setting up the Waveform This chapter contains the fundamental procedures for setting up the acquisition and adjusting the channel waveforms. Passive probes Passive probes require compensation for exact signal display and measurement. The compensation procedure is described in the "Getting Started"...
Page 36: Setting The Acquisition
® Acquisition and Waveform Setup R&S RTM20xx Setting up the Waveform c) Press the "Probe" softkey and select the attenuation. 8. Use the SCALE rotary knob in the VERTICAL area of the front panel to adjust the vertical scale of the waveform. Press the knob to toggle between fine and rough adjustment.
Page 37: Reference For Waveform Setup
® Acquisition and Waveform Setup R&S RTM20xx Reference for Waveform Setup ● Running one acquisition or a given number of acquisitions Prerequisites: ● Probes are connected. ● Vertical and horizontal settings are adjusted. ● Triggering is set. ● Channels to be acquired are turned on. To start and stop continuous acquisition 1.
Page 38: Acquisition Menu
® Acquisition and Waveform Setup R&S RTM20xx Reference for Waveform Setup POSITION........................23 SCALE..........................23 POSITION The rotary knob changes the trigger offset. This is the horizontal position of the trigger point in relation to the reference point - the zero point of the grid. Thus, you can set the trigger point even outside the diagram and analyze the signal some time before or after the trigger.
Page 39: Decimation Mode
® Acquisition and Waveform Setup R&S RTM20xx Reference for Waveform Setup Decimation Mode......................24 Wavef. Arithmetic......................24 Single........................25 No. of Averages......................25 Limit Freq........................25 Waveform Rate......................25 Record Length.......................26 Roll..........................26 Sample Mode........................26 Interpolation........................27 Decimation Mode Decimation reduces the data stream of the ADC to a stream of waveform points with lower sample rate and a less precise resolution if the oscilloscope captures more samples than the waveform memory can save.
Page 40: Nx Single
® Acquisition and Waveform Setup R&S RTM20xx Reference for Waveform Setup "Average" The average is calculated from the data of the current acquisition and a number of acquisitions before. The method reduces random noise and other heterodyne signals. It requires a stable, triggered and repet- itive signal.
Page 41: Record Length
® Acquisition and Waveform Setup R&S RTM20xx Reference for Waveform Setup "Automatic" Default mode: To display the best waveform, the instrument selects the optimum combination of waveform acquisition rate and sample rate using the full memory depth (maximum record length). "Set Rec.
Page 42: Vertical Settings
® Acquisition and Waveform Setup R&S RTM20xx Reference for Waveform Setup Interpolation Selects the interpolation method if the real time sample mode needs interpolation. "Sin (x)/x" Two adjacent ADC sample points are connected by a sin(x)/x curve, and also the adjoining sample points are considered by this curve. The interpolated points are located on the resulting curve.
Page 43 ® Acquisition and Waveform Setup R&S RTM20xx Reference for Waveform Setup └ POSITION.......................28 └ OFFSET......................28 SCALE, Y-Scale......................29 CH N Each channel key turns on an analog channel, selects it, and opens the "Channel" menu with the vertical settings of the selected channel. The key is illuminated in the channel color, if the channel is active.
Page 44 ® Acquisition and Waveform Setup R&S RTM20xx Reference for Waveform Setup Use the offset to measure small AC voltages that are overlaid by higher DC voltages. Unlike AC coupling, the DC part of the signal is not lost with offset setting. The device under test is not affected.
Page 45 ® Acquisition and Waveform Setup R&S RTM20xx Reference for Waveform Setup Coupling........................30 Termination........................30 Bandwidth........................30 Offset..........................31 Invert..........................31 Y-Scale..........................31 Probe..........................31 Deskew.........................31 Threshold........................31 Label..........................32 Coupling Selects the connection of the input signal. The current coupling of each channel is shown in the waveform labels above the grid. "AC"...
Page 46 ® Acquisition and Waveform Setup R&S RTM20xx Reference for Waveform Setup "400 MHz, Frequency limit. Frequencies above the selected limit are removed to 200MHz, reduce noise at different levels. These bandwidth limits are indicated 20MHz" by the icon in the waveform label. The 400 MHz filter is not available for 350 MHz instruments (R&S RTM203x).
Page 47 ® Acquisition and Waveform Setup R&S RTM20xx Reference for Waveform Setup You can: ● Select one of the default values for TTL, ECL, or CMOS – TTL: 1,4 V – ECL: -1,3 V – CMOS: 2,5 V ● Set the "User" value individually ●...
Page 48 ® Acquisition and Waveform Setup R&S RTM20xx Reference for Waveform Setup Unit Selects the unit that the probe can measure. ● V - for voltage measurements ● A - for current measurements Remote command: on page 297 P ROBe<m>: S ETup: A TTenuation: U NIT 2.3.3.4 Probe Menu (Active Probe) In the probe menu for active probes, you can also adjust the offset value for the selected...
Page 49 ® Acquisition and Waveform Setup R&S RTM20xx Reference for Waveform Setup "Continuous" Pressing the Micro Button starts continuous acquisition like the RUN key. The acquisition is running as long as you press the Micro Button again. "Single" Starts one acquisition. "Autoset"...
Page 50 ® Acquisition and Waveform Setup R&S RTM20xx Reference for Waveform Setup Library Selects a predefined label text and assigns it. The text can be edited with "Edit Label". Edit Label Opens on-screen keyboard to enter a label text. If you previously have selected a text from the library, it is already written in the entry line, and you can modify it.
Page 51: Triggers
® Triggers R&S RTM20xx Basics of Triggering 3 Triggers 3.1 Basics of Triggering Triggering means to capture the interesting part of the relevant waveforms. Choosing the right trigger type and configuring all trigger settings correctly allows you to detect various incidents in analog, digital, and logic signals.
Page 52: Setting Up The Trigger
® Triggers R&S RTM20xx Setting Up the Trigger ● Trigger slope or other conditions specific for the selected trigger type Fig. 3-1: Trigger information: Normal trigger mode, trigger source is channel 1, width trigger to find negative pulses shorter than a given pulse width, trigger level = 1.71 mV Fig.
Page 53: Positioning The Trigger
® Triggers R&S RTM20xx Setting Up the Trigger 7. Set the "Normal" trigger mode: Press the AUTO/NORMAL key on the front panel until "Norm" is shown in the information bar. 3.2.2 Positioning the Trigger By positioning the trigger, you define which part of the waveform is displayed: mainly the pretrigger part, or the posttrigger part, or the part around the trigger point.
Page 54: Reference For Triggers
® Triggers R&S RTM20xx Reference for Triggers 3.3 Reference for Triggers The trigger settings are located in the TRIGGER functional block on the front panel and in the "Trigger" softkey menu. 3.3.1 TRIGGER Controls The keys and the rotary knob in the TRIGGER functional block adjust the trigger and start or stop acquisition.
Page 55: Trigger Settings
® Triggers R&S RTM20xx Reference for Triggers "Auto" The instrument triggers repeatedly after a time interval if the trigger conditions are not fulfilled. If a real trigger occurs, it takes precedence. This mode helps to see the waveform even before the trigger is set. The waveform on the screen is not synchronized, and successive wave- forms are not triggered at the same point of the waveform.
Page 56 ® Triggers R&S RTM20xx Reference for Triggers ● Common Trigger Settings..................41 ● Trigger Source Settings..................42 ● Edge........................43 ● Width........................45 ● Video........................46 ● Pattern........................48 ● Rise Time / Fall Time....................50 ● Protocol........................52 ● B-Setup........................52 3.3.2.1 Common Trigger Settings The "Trigger" menu is general menu for all trigger types and leads to the type-specific menus.
Page 57 ® Triggers R&S RTM20xx Reference for Triggers See: c hapter 3.3.2.2, "Trigger Source Settings", on page 42 Remote command: on page 303 T RIGger: A : S OURce Hold Off Enables the holdoff and defines the holdoff time. The next trigger occurs only after the holdoff time has passed.
Page 58 ® Triggers R&S RTM20xx Reference for Triggers Remote Command: on page 303 T RIGger: A : S OURce Channel N Selects one of the analog input channels as trigger source. Logic Channels Selects one of the digital channels as trigger source if MSO option R&S RTM-B1 is installed.
Page 59 ® Triggers R&S RTM20xx Reference for Triggers "Both" Selets the rising as well as the falling edge. Remote command: on page 304 T RIGger: A : E DGE: S LOPe Coupling Sets the coupling for the trigger source. "AC" Alternating Current coupling.
Page 60 ® Triggers R&S RTM20xx Reference for Triggers 3.3.2.4 Width The width trigger compares the pulse width (duration) with a given time limit. It detects pulses with an exact pulse width, pulses shorter or longer than a given time, as well as pulses inside or outside the allowable time range.
Page 61 ® Triggers R&S RTM20xx Reference for Triggers Time t Sets the reference time, the nominal value for comparisons ti<t, ti>t, ti=t, ti≠t. Remote command: on page 306 T RIGger: A : W IDTh: W IDTh Variation Sets a range Δt to the reference "Time t", if comparison is set to "ti=t" or "ti≠t". The instru- ment triggers on pulses inside or outside the range ti±Δt.
Page 62 ® Triggers R&S RTM20xx Reference for Triggers You can trigger on various SDTV signals like PAL, PAL-M, SECAM, NTSC and SDTV 576i (PAL and SECAM). HDTV standards are indicated by the number of active lines and the scanning system (p for progressive scanning, i for interlaced scanning.
Page 63 ® Triggers R&S RTM20xx Reference for Triggers Frame The oscilloscope triggers on the beginning of the video signal fields if the other trigger conditions are fulfilled. The setting is available for video signals using interlaced scanning. "All" Triggers on all fields "Odd"...
Page 64 ® Triggers R&S RTM20xx Reference for Triggers "X" Don't care: the channel does not affect the trigger. If MSO option R&S RTM-B1 is installed, the digital channels D0 to D15 are available in addition to analog channels. If X is set for all channels, the oscilloscope triggers only in automatic trigger mode.
Page 65 ® Triggers R&S RTM20xx Reference for Triggers Triggers on pattern state durations unequal to the "Time t", if "Varia- "ti≠t" tion" Δt = 0. If "Variation" ≠ 0: this setting triggers outside a range t±Δt. "Inside, Out- Triggers on pattern state durations inside or outside a range specified side"...
Page 66 ® Triggers R&S RTM20xx Reference for Triggers "Falling" Fall time trigger Remote command: on page 311 T RIGger: A : R ISetime: S LOPe Upper Level Sets the upper voltage threshold. When the signal crosses this level, the slew rate mea- surement starts or stops depending on the selected polarity.
Page 67 ® Triggers R&S RTM20xx Reference for Triggers 3.3.2.8 Protocol The "Protocol" trigger menu contains the trigger settings for the serial bus or interface that is configured with PROTOCOL. Protocol analysis requires additional options. For protocol setup and trigger settings, see c hapter 11, "Protocol Analysis", on page 148.
Page 68 ® Triggers R&S RTM20xx Reference for Triggers Trigger On Sets an additional delay condition for the B-event: time delay or event delay. According to this selection, set also "Time" or "Events" to define the condition completely. Remote command: on page 313 T RIGger:...
Page 69: Display
® Display R&S RTM20xx General Display Settings 4 Display This chapter provides information on display configuration and display modes. The default display is a waveform diagram with a time axis in x-direction and the signal amplitudes displayed in y-direction - the Y(t) or time diagram. You can adjust the visibility of diagram elements and waveform to your needs.
Page 70: Configuring The Display
® Display R&S RTM20xx General Display Settings ● Persistence defines how long a data point is displayed in the diagram. Each new data point remains on the screen for the defined persistence time, or infinitely until the persistence time is changed or the persistence is cleared. ●...
Page 71 ® Display R&S RTM20xx General Display Settings ● Brightness and signal colors depend on the cumulative frequency of the value. See: " To configure brightness" on page 56 ● Waveform as line or points: see " To set the waveform style" on page 57.
Page 72: Display Menu
® Display R&S RTM20xx General Display Settings It is also possible to invert the brightness display so that rare values are brighter than frequent values. 1. To convert the brightness level to a color range, press "DISPLAY > Temperature Colors". 2.
Page 73: Display Mode
® Display R&S RTM20xx General Display Settings └ Defaults......................61 Grid..........................61 VirtualScreen.........................61 Display Mode Toggles the diagram mode. "Y(t)" Default time diagram with a time axis in x-direction and the signal ampli- tudes displayed in y-direction. "XY-diagram" XY-diagrams combine the voltage levels of two waveforms in one dia- gram.
Page 74: Grid
® Display R&S RTM20xx General Display Settings Grid ← Intensities Defines the intensity of the grid on the screen in percent. Enter a percentage between 0%and 100%. The default value is 34%. Remote command: on page 317 D ISPlay: I NTensity: G RID Persistence ←...
Page 75: Colors
® Display R&S RTM20xx General Display Settings Temper. Colors Temperature Colors: Converts the brightness level of the displayed signals into a color range, i.e. the color changes gradually in a wide color spectrum with increasing cumula- tive occurance. By default, rare values are displayed in blue, while more frequent values are red and very frequent values are displayed in yellow or white, with various colors inbetween.
Page 76: Xy-Diagram
® Display R&S RTM20xx XY-Diagram Trigger Hyst. ← Aux. Cursors Shows or hides the hysteresis range around the trigger level when the trigger level or the hysteresis are changed. Hysteresis avoids unwanted trigger events caused by noise oscillation around the trigger level. See also: ...
Page 77: Configuring Xy-Diagrams
® Display R&S RTM20xx XY-Diagram Together with the XY-diagram, the time diagrams of the source signals are displayed in separate windows. Fig. 4-1: XYZ-display 4.2.1 Configuring XY-Diagrams XY-diagrams combine the voltage levels of two waveforms in one diagram. A further signal source can be used to determine the intensity of the XY-waveform.
Page 78 ® Display R&S RTM20xx XY-Diagram To configure an XY-diagram Prerequisite: The "Display Mode" is set to "XY". 1. Select "DISPLAY > XYZ Setup > Source X" to define the signal to be used as the x- axis source. Press "Source X" repeatedly until the required channel is highlighted. 2.
Page 79: Xyz Setup Menu
® Display R&S RTM20xx XY-Diagram To configure the intensity of an XY-waveform modulated by a signal amplitude Prerequisite: The "Display Mode" is set to "XY", and the XY-diagram is configured. 1. Press "DISPLAY > XYZ Setup > Z Setup". 2. Press the left "Source Z" softkey until "ON" is highlighted to activate intensity control by the Z source.
Page 80 ® Display R&S RTM20xx XY-Diagram The function is available in R&S RTM1054. Remote command: on page 315 D ISPlay: X Y: Y 1Source Source Y2 Defines an optional second source to be displayed in y direction in an XY-diagram. The source can be selected from any of the analog channels.
Page 81: Zoom
® Display R&S RTM20xx Zoom "Modulation" Modulated intensity; Intensity is modulated continuously according to the selected "Source Z". "On | Off" Intensity is determined by a "Threshold" value. If the Z signal value is below the selected threshold, the corresponding x/y point is displayed with lowest intensity.
Page 82 ® Display R&S RTM20xx Zoom The usual channel parameters are displayed in the information bar above the original Y(t)-window (see the general display information described in the "Getting Started" man- ual). In addition, the zoom area parameters are indicated in the information bar above the zoom window.
Page 83: Zooming For Details
® Display R&S RTM20xx Zoom Fig. 4-2: Zoom area width and position When you deactivate the zoom display, the previous display is restored. 4.3.2 Zooming for Details The zoomed area and its position can be configured numerically or using the rotary knobs. To display a zoom diagram ►...
Page 84: Zoom Menu
® Display R&S RTM20xx Zoom To configure the zoom area via the rotary knobs Pressing the horizontal SCALE rotary knob moves the focus between the Y(t)-window (Time Control), the zoom area (Zoom Control) and the zoom window. The currently selected screen area is highlighted and displayed in the information bar of the zoom window.
Page 85 ® Display R&S RTM20xx Zoom Main Time Base......................70 Zoom Time Base......................70 Trigger Offset........................70 Zoom Time........................70 Zoom Off........................71 Main Time Base Defines the scaling for the time base in the (original) Y(t)-window in seconds per division. The scaling is indicated by "TB" in the information bar above the window. Note: If "Time Control"...
Page 86: Markers
® Display R&S RTM20xx Markers Zoom Off Closes the zoom window and returns to the previous display. Remote command: on page 320 T IMebase: Z OOM: S TATe 4.4 Markers Markers allow you to mark certain positions on the screen, e.g. a rising or falling edge, or an unexpected signal value, or a search result.
Page 87 ® Display R&S RTM20xx Markers Fig. 4-3: Zoomed display using markers To set a marker 1. Turn the horizontal "Position" rotary knob and move the position to be marked to the reference point, usually in the middle of the display. 2.
Page 88: Reference For Markers
® Display R&S RTM20xx Markers 2. If not yet active, activate the zoom function by pressing the ZOOM key. The marker lines are displayed both in the original window and in the zoom window. 3. Select the marker that indicates the area you want to zoom into using the NEXT or PREV key.
Page 89: Reference Waveforms
® Reference Waveforms R&S RTM20xx Using References 5 Reference Waveforms Reference waveforms are waveform data stored in in the internal reference storages. Four internal reference storages are available: RE1 - RE4. These four reference wave- forms can be displayed. Reference waveforms can be saved to and loaded from any storage device - internal memory or external USB flash device.
Page 90: Saving And Loading References
® Reference Waveforms R&S RTM20xx Using References 2. Press "Reference" and select the reference storage position. If a reference was already loaded to the selected reference position before, the stored reference waveform is displayed. 3. Select the data that will be used as reference by doing one of the following: ●...
Page 91: Reference For Ref Key
® Reference Waveforms R&S RTM20xx Reference for REF key 4. Press "Load". A file explorer is displayed. 5. Select the storage device and the file that contains the reference. Use the "Naviga- tion" knob to scroll through the directories. To change the directory, scroll to the name of the directory and press the knob, or press "Change Directory".
Page 92 ® Reference Waveforms R&S RTM20xx Reference for REF key If MSO option R&S RTM-B1 is installed, you can store also the pods of digital channels as references. Remote command: on page 322 R EFCurve<m>: S OURce on page 323 R EFCurve<m>:...
Page 93: Measurements
® Measurements R&S RTM20xx Cursor Measurements 6 Measurements The following measurement methods are available: ● CURSOR: Cursor measurements determine specific measurement results at the current cursor positions of an active waveform; the results are displayed in a result table. ● QUICK MEAS: performs basic automatic measurements for the selected channel immediately;...
Page 94 ® Measurements R&S RTM20xx Cursor Measurements For cursor measurements on channel, math, and reference waveforms, various mea- surement types are available, for example, Peak, RMS, Mean und Count. Cursor mea- surement is also possible on the results of an FFT analysis. It measures the frequencies and levels at the cursor positions and their differences.
Page 95 ® Measurements R&S RTM20xx Cursor Measurements Results: V1, V2, ΔV Time Sets two vertical cursor lines and measures the time from the trigger point to each cursor point, the time between the two cursors and the frequency calculated from that time. Results: t1, t2, Δt, 1/t Voltage &...
Page 96: Performing Cursor Measurements
® Measurements R&S RTM20xx Cursor Measurements Duty Ratio Measures the positive and negative duty cycles. The duty cycle is the ratio between the duration of a positve pulse (high active) or a negative pulse (low-active) and the period of a rectangular waveform. The measurement requires at least one complete period of the signal between cursor 1 and cursor 2.
Page 97: Cursor Menu
® Measurements R&S RTM20xx Cursor Measurements 3. Press "Source" to select the waveform for which the measurement is to be performed. The source can be any active waveform depending on the selected measurement type. 4. Move the cursors to obtain the required results. See also: ...
Page 98: Cursor
® Measurements R&S RTM20xx Cursor Measurements Cursor...........................83 Meas.Type........................83 Source...........................83 Track Scaling........................84 Coupling........................84 Set to Wave........................84 Set To Screen.......................84 Prev. peak........................84 Next peak........................85 NAVIGATION........................85 Cursor Activates or deactivates the selected cursor measurement. Remote command: on page 327 C URSor<m>: S TATe Meas.Type Selects the cursor measurement type.
Page 99: Track Scaling
® Measurements R&S RTM20xx Cursor Measurements If MSO option R&S RTM-B1 is installed, also digital channels D0 to D15 are available for time, ratio X, count, duty ratio, and burst width measurements, and the pods D0...D7 and D8...D15 are available for V-marker measurements. Available sources depend on the selected measurement type.
Page 100: Quick Measurements
® Measurements R&S RTM20xx Quick Measurements Next peak For FFT analysis only: sets the selected cursor to the next (right) level peak. To select the cursor, press the NAVIGATION knob. Remote command: on page 331 C URSor<m>: S NPeak NAVIGATION Select cursor: Press the NAVIGATION rotary knob to select a cursor line.
Page 101 ® Measurements R&S RTM20xx Quick Measurements The following measurement results are determined for the displayed section of the wave- form: Label Description Display Positive peak value Negative peak value Rising time of the first rising edge Mean Mean value Falling time of the first falling edge Peak to peak value Period length Frequency...
Page 102: Automatic Measurements
® Measurements R&S RTM20xx Automatic Measurements Remote command: ● on page 335 M EASurement<m>: A LL[: S TATe] ● on page 335 M EASurement<m>: A ON ● on page 335 M EASurement<m>: A OFF ● on page 335 M EASurement<m>:...
Page 103: Rms Value
® Measurements R&S RTM20xx Automatic Measurements Duty Cycle -........................90 Rise Time........................90 Fall Time........................90 σ-Std. Dev. Wave......................90 σ-Std. Dev. Cycle......................90 Delay..........................91 Phase..........................91 Burst Width........................91 Count positive pulses....................91 Count negative pulses....................91 Count rising edges......................91 Count falling edges.......................91 Trigger Freq........................91 Trigger Period.......................92 Trigger B Freq.......................92 Trigger B Period......................92...
Page 104: Crest Factor
® Measurements R&S RTM20xx Automatic Measurements Period Measures the length of the left-most signal period within the displayed section of the waveform. The measurement value is displayed as "T" in the result table. Amplitude Measures the amplitude of a square wave. To do so, the potential difference between high and low level ("Vbase"...
Page 105 ® Measurements R&S RTM20xx Automatic Measurements Pulse Width (negative pulse) : Measures the width of a negative pulse. A negative pulse consists of a falling edge followed by a rising edge. The measurement requires at least one complete period of a triggered signal.
Page 106 ® Measurements R&S RTM20xx Automatic Measurements Delay Measures the time difference on the middle reference level between two slopes of the same or different waveforms. The measurement value is displayed as "Delay" in the result table. Select the sources and slopes in the D elay Setup menu.
Page 107 ® Measurements R&S RTM20xx Automatic Measurements Trigger Period Measures the length of the A-trigger signal periods (hardware counter). The measure- ment value is displayed as "T(Tr)" in the result table. Trigger B Freq. Measures the frequency of the B-trigger signal based on the length of its period. The measurement value is displayed as "f(TrB)"...
Page 108: Configuring And Performing Automatic Measurements
® Measurements R&S RTM20xx Automatic Measurements 6.3.1.3 Statistics For each active measurement, you can enable a statistic evaluation of the measurement results. It returns the current, minimum and maximum measurement values, the average and standard deviation, and the number of measured waveforms. For configuration settings, see ...
Page 109: Auto Measure Menu (Meas Key)
® Measurements R&S RTM20xx Automatic Measurements 6. Press "Measure 1-4" until "On" is highlighted to activate the measurement. The selected measurement is activated and the results are displayed in the result table. To activate configured automatic measurements 1. Press the MEAS key. 2.
Page 110 ® Measurements R&S RTM20xx Automatic Measurements Meas. Place........................95 Measure 1-4........................95 Meas. Type........................95 Source...........................96 Statistic..........................96 └ Meas. Place....................96 └ Statistic......................96 └ No. of Averages....................96 └ Reset, Reset All....................96 └ Clear All......................96 Reference Level: Upper, Middle, Lower Levels............97 Clear All.........................97 Delay Setup........................97 Phase Setup........................97 Meas.
Page 111 ® Measurements R&S RTM20xx Automatic Measurements Source Selects one of the active signal, reference or math waveforms as the source of the selected measurement. Available sources depend on the selected measurement type. If MSO option R&S RTM-B1 is installed, active digital channels are available as mea- surement sources for time and count measurements.
Page 112 ® Measurements R&S RTM20xx Automatic Measurements Reference Level: Upper, Middle, Lower Levels Set the lower and upper reference levels for rise and fall time mesurements (cursor and automatic mesurements) as well as the middle reference level used for phase and delay measurements.
Page 113: Mathematics
® Mathematics R&S RTM20xx Configuring and Using Math Waveforms 7 Mathematics Mathematical (math) waveforms are calculated data. Each math waveform is defined by an equation. You can configure and save up to five equations (MA1 – MA5), four of these equation can be displayed (MA1 –...
Page 114: Editing Equations And Equation Sets
® Mathematics R&S RTM20xx Configuring and Using Math Waveforms If the required equation is not included, edit the current equation set, or load an appro- priate equation set that was saved before. See also: " To configure an equation" on page 99 and ...
Page 115: Saving And Loading Equation Sets
® Mathematics R&S RTM20xx Configuring and Using Math Waveforms d) If you selected a user-defined constant, define its value: ● Press "Value" and enter the numeric value. ● Press "Decimal Point" to move the decimal point within the numeric value. Press "Prefix"...
Page 116: Reference For Mathematics
® Mathematics R&S RTM20xx Reference for Mathematics See: c hapter 13.2.1.1, "Configuring Storage Locations", on page 218. 4. Optionally, define a comment to be added to the equation set using the "Comment" softkey. 5. Press "Save". The equation set is saved as configured. To load an equation set 1.
Page 117: Equation
® Mathematics R&S RTM20xx Reference for Mathematics └ Equation Label....................109 Eq. Set Label.......................109 Save..........................109 Load..........................109 Equation Selects one of five possible mathematical channels. Visible Defines whether the selected mathematical waveform is displayed on the display or not. Note: MA5 cannot be displayed, it is always invisible. Remote command: ...
Page 118: Edit Equations
® Mathematics R&S RTM20xx Reference for Mathematics ● Wb (Weber) ● T (Tesla) ● (dez) (dezimal) ● (bin) (binary) ● (hex) (hexadezimal) ● (oct) (octal) ● DIV (Division, graticule) ● px (pixel) ● ● Bit/s ● Byte ● Bd (Baud) ●...
Page 119 ® Mathematics R&S RTM20xx Reference for Mathematics "Subtraction" Op1 - Op2 Subtracts the second operand from the first operand. "Multiplication" Op1 * Op2 Multiplies the two operands. "Division" Op1 / Op2 Divides the first operand by the second operand. For small amplitudes of the second operand, the result increases quickly.
Page 120 ® Mathematics R&S RTM20xx Reference for Mathematics "Minimum" Minimum (Op1, Op2) Compares the amplitudes of both operands and displays the minimum amplitude. The sign of the result is taken from Operand1. Use this operation in combination with the "Reciprocal" or "Division" operation to limit the maximal amplitudes of an operand.
Page 121 ® Mathematics R&S RTM20xx Reference for Mathematics "Neg. Wave" Min (Op1, 0) Extracts the negative data points from the operand. For all positive val- ues the result is zero. The negative values remain unmodified. "Reciprocal" 1V / Op1 Divides 1V by the operand values. For small operand amplitudes the result increases quickly.
Page 122: Operand 1
® Mathematics R&S RTM20xx Reference for Mathematics "Derivative" f'(Op1) The derivative corresponds to the rise of the tangent through a function point and indicates the dimension of the change in quantity of the oper- and in time. The larger the quantity change of the operand per time becomes, the larger the result of the derivative is.
Page 123: Operand 2
® Mathematics R&S RTM20xx Reference for Mathematics "MA1 | MA2 | A mathematical waveform. Only math waveforms with lower number MA3 | MA4" are available. Operand 2 ← Edit Equations Defines the second operand for the mathematical operation, if required. The source can be any active channel signal, a constant value, or a mathematical waveform with lower number than the one to be defined.
Page 124: Unit
® Mathematics R&S RTM20xx Reference for Mathematics ● a (Atto, 10 ● z (Zepto, 10 ● y (Yokto, 10 ● K (Kilo, 10 ● M (Mega, 10 ● G (Giga, 10 ● T (Tera, 10 ● P (Peta, 10 ● E (Exa, 10 ●...
Page 125: Fft
® R&S RTM20xx FFT Display 8 FFT In addition to signal vs. time and signal vs. signal displays, the frequencies of a signal as determined by FFT analysis can be displayed. FFT analysis is configured and activated using the FFT key. Analysis is always performed on the signal channel that was most recently activated, however you can change the channel source.
Page 126: Configuring And Using Fft Calculations
® R&S RTM20xx Configuring and Using FFT Calculations Move the focus between the Y(t)-window (Time Control), the FFT time base extract (Time Section) and the FFT frequency range (FFT Control) by pressing the horizontal SCALE rotary knob. The currently selected screen element is highlighted and displayed in the information bar.
Page 127: Configuring The Diagrams
® R&S RTM20xx Configuring and Using FFT Calculations To deactivate the FFT display ► Press the FFT key again, or press the "FFT off" softkey in the "FFT" menu to deac- tivate the FFT display. The FFT key is no longer illuminated and the previous display is restored. To configure the general FFT display 1.
Page 128 ® R&S RTM20xx Configuring and Using FFT Calculations b) Press "Position" to define the position of the time base extract. The position is defined as an offset of the center of the extract range to the 0s reference point. The time base extract is indicated by a white frame in the Y(t)-window. The width (W) and position (P) are indicated in the information bar beneath the Y(t)-window.
Page 129 ® R&S RTM20xx Configuring and Using FFT Calculations d) Turn the vertical SCALE rotary knob to define the scaling of the FFT amplitudes. Turn the knob counter-clockwise to decrease the amplitudes, or clockwise to enlarge them. To configure the Y(t)-window numerically Alternatively to configuring the Y(t)-window numerically via the softkeys, you can use the rotary knobs to change the settings graphically, see ...
Page 130: Measuring On Fft
® R&S RTM20xx Reference for FFT key 3. Turn the vertical POSITION rotary knob to define the vertical position of the time axis in the Y(t)-window. Turn the knob counter-clockwise to move the time axis down, or clockwise to move it up. 4.
Page 131: Fft
® R&S RTM20xx Reference for FFT key FFT..........................116 Wfm. Arithmetic......................116 No. of Averages......................117 Window........................117 Y-Scaling........................118 FFT-Setup........................118 └ Span......................119 └ Center......................119 └ Y-Scale......................119 └ YT-Window....................119 └ Position......................120 └ Points......................120 Y(t)-Setup........................120 └ Y-Scale......................120 └ Y-Position......................120 └ Main Time Base....................120 └ Trigger Offset....................121 └...
Page 132: No. Of Averages
® R&S RTM20xx Reference for FFT key "Envelope" In addition to the normal spectrum, the maximal oscillations are saved separately and updated for each new spectrum. The maximum values are displayed together with the newly acquired values and form an envelope.
Page 133: Y-Scaling
® R&S RTM20xx Reference for FFT key "Hamming" The Hamming window is bell shaped. Its value is not zero at the borders of the measuring interval. Thus, the noise level inside the spectrum is higher than Hanning or Blackman, but smaller than the rectangular window.
Page 134: Span
® R&S RTM20xx Reference for FFT key Span ← FFT-Setup The span is specified in Hertz and defines the width of the displayed frequency range, which is (Center - Span/2) to (Center + Span/2). The position of the span is defined using the "Center"...
Page 135: Position
® R&S RTM20xx Reference for FFT key See also f igure 8-1. Remote command: on page 353 C ALCulate: M ATH<m>: F FT: T IME: R ANGe Position ← FFT-Setup Defines the position of the time base extract in the Y(t)-window for which the FFT is calculated.
Page 136: Trigger Offset
® R&S RTM20xx Reference for FFT key Note: If "Time Control" is selected, the main time base can be adjusted using the hori- zontal SCALE rotary knob. See also on page 23, on page 69 and " SCALE" "...
Page 137: Masks
® Masks R&S RTM20xx About Masks 9 Masks Masks are used to determine whether the amplitude of a signal remains within specified limits, e.g. to detect errors or test compliance of digital signals. 9.1 About Masks 9.1.1 Masks A mask is specified by an upper and a lower limit line. The signal must run inside these limit lines, otherwise a mask violation occurs.
Page 138: File Formats For Masks
® Masks R&S RTM20xx About Masks Remote commands for mask test results: ● on page 357 M ASK: C OUNt? ● on page 357 M ASK: V COunt? ● on page 357 M ASK: R ESet: C OUNter 9.1.3 File Formats for Masks Data of masks is always saved as a succession of pairs of values - lower and upper limit - and the pairs are written as two consecutive single values.
Page 139: Working With Masks
® Masks R&S RTM20xx Working with Masks 4.000E+00,-7.831E-01 5.000E+00,-3.313E+00 5.000E+00,-8.232E-01 6.000E+00,-3.273E+00 6.000E+00,-8.232E-01 7.000E+00,-3.273E+00 7.000E+00,-7.831E-01 8.000E+00,-3.313E+00 8.000E+00,-7.831E-01 9.000E+00,-3.273E+00 9.000E+00,-7.831E-01 1.000E+01,-3.273E+00 1.000E+01,-8.232E-01 At export, the sample indexes are written in scientific notification. If you create a mask manually in a CSV file, you can write the indexes simply as intergers. The file should contain 1000 pairs of min-max values.
Page 140: Creating New Masks
® Masks R&S RTM20xx Working with Masks 9.2.1 Creating New Masks You create a new mask based on a channel waveform, then optimize it by changing its position and proportions, and save it. 1. Select and adjust the channel waveform that will be used as basis for the mask, and run continuous acquisition.
Page 141 ® Masks R&S RTM20xx Working with Masks The specified factor in divisions is added to the y-values of the upper mask limit and subtracted from the y-values of the lower mask limit. Thus, the upper half of the mask is pulled upwards, the lower half is pulled down. 7.
Page 142: Loading Masks
® Masks R&S RTM20xx Working with Masks b) Define the storage settings as described for waveforms in c hapter 13.2.1.1, "Configuring Storage Locations", on page 218. c) Press "Save". 9.2.2 Loading Masks You can load mask data from MSK or CSV files from any storage device. To copy a mask, use FILE >"Import/Export Masks".
Page 143: Reference For Masks Key
® Masks R&S RTM20xx Reference for MASKS key The mask test is performed, i.e. the data from the active channel is compared to the mask. If the mask limits are exceeded, the specified action is taken. The overall result is shown in the results table: 6.
Page 144: Pause
® Masks R&S RTM20xx Reference for MASKS key Which action is to be taken when a violation is detected is defined using the A ctions softkey. See also: c hapter 9.2.3, "Performing a Mask Test", on page 127. Remote command: ...
Page 145: Width X
® Masks R&S RTM20xx Reference for MASKS key The specified number of divisions is added to the y-values of the upper mask limit and subtracted from the y-values of the lower mask limit. Thus, the upper half of the mask is pulled upwards, the lower half is pulled down, and the overall height of the mask is twice the "Width Y".
Page 146: Sound, Stop, Screenshot, Print, Waveform
® Masks R&S RTM20xx Reference for MASKS key "Waveform" Saves the waveform data according to the settings in FILE > "Wave- form". Remote command: on page 357 M ASK: A CTion: S OUNd: E VENt: M ODE on page 357 M ASK:...
Page 147: Search
® Search R&S RTM20xx Search Conditions and Results 10 Search 10.1 Search Conditions and Results The search functions of R&S RTM allow to find all edges, pulse widths, peaks, or other events in an acquisition that match the search conditions. For each search type, specific settings are available.
Page 148 ® Search R&S RTM20xx Search Conditions and Results Fig. 10-1: Results of an edge search with R&S RTM 1 = Search results 2 = Marked search results 3 = Selected search result 4 = Search conditions 5 = Number of results, scope of results displayed in the results table 6 = Result values: result number, time value, optional value depending on the search type (voltage, width) Remote commands: ●...
Page 149: Configuring And Performing Searches
® Search R&S RTM20xx Configuring and Performing Searches 10.2 Configuring and Performing Searches To configure and start a search Prerequisite: Signal acquisition, reference or math waveform is configured. 1. Press the SEARCH key. The "Search" menu opens, and the search is enabled. 2.
Page 150: Reference For Search Menu
® Search R&S RTM20xx Reference for Search Menu The selected result is highlighted in the table and indicated in the diagram with a magnifier symbol. 5. To see the selected event even if it is outside the display, press "Track event". The waveform is moved on the display, and the selected result is shown at the time reference point.
Page 151 ® Search R&S RTM20xx Reference for Search Menu Search Enables and disables the search mode. Remote command: on page 359 S EARch: S TATe Search type Selects the event you want to search for. "Edge" Similar to the edge trigger, an edge search result is found when the waveform passes the given level in the specified direction.
Page 152: Edge Setup
® Search R&S RTM20xx Reference for Search Menu "Protocol" The protocol search finds various events in decoded data of CAN and LIN signals, for example, a specified frame type, identifier, data, and errors.The protocol search requires option R&S RTM-K3. For information on protocol search, see ●...
Page 153: Width Setup
® Search R&S RTM20xx Reference for Search Menu "Both" Rising edge and falling edge Remote command: on page 362 S EARch: T RIGger: E DGE: S LOPe Level Sets the voltage level for the search. Remote command: on page 362 S EARch:...
Page 154: Peak Setup
® Search R&S RTM20xx Reference for Search Menu "Lower than" Finds pulses shorter than the given "Width". "Equal" Finds pulses equal to the reference "Width" if "Variation" Δt = 0. If "Variation" ≠ 0, the setting finds pulses within the range width ± Δt. See also: ...
Page 155 ® Search R&S RTM20xx Reference for Search Menu Edge Sets the slope to be found: ● "Rising" to search for rise time ● "Falling" to search for fall time ● "Both" to search for rise and fall time Remote command: ...
Page 156: Runt Setup
® Search R&S RTM20xx Reference for Search Menu Variation Sets a range Δt to the reference "Rise/Fall time" if comparison is set to "Equal" or "Not equal". The instrument finds rise/fall times inside or outside the range width ± Δt. Remote command: ...
Page 157: Data2Clock Search
® Search R&S RTM20xx Reference for Search Menu Variation Sets a range Δt to the reference "Width" if comparison is set to "Equal" or "Not equal". The instrument finds pulses inside or outside the range width ± Δt. Remote command: ...
Page 158 ® Search R&S RTM20xx Reference for Search Menu Hysteresis Sets a hysteresis range to the search level of the selected signal in order to avoid unwan- ted search results caused by noise oscillation around the level. For a rising edge, the hysteresis is below the search level.
Page 159: Pattern Search
® Search R&S RTM20xx Reference for Search Menu Hold Time Sets the minimum time after the clock edge while the data signal must stay steady above or below the data level. The hold time can be negative. In this case, the hold time ends before the clock edge, and the setup time must be positive and longer than the absolute value of the hold time.
Page 160 ® Search R&S RTM20xx Reference for Search Menu 10.3.8.2 Pattern Setup Access: SEARCH MENU > "Search type = Pattern" > "Setup" For pattern search, up to four channels can be used as source. For each channel, you define the state. The states are combined logically, and the time of true pattern results is compared with a specified time range.
Page 161: Gate Menu
® Search R&S RTM20xx Reference for Search Menu Comparison Sets the condition how the duration of a steady pattern is compared with the given limit(s). The three settings "Width" "Variation" and "Comparison" define the time range for keeping up the true result of the state pattern. The same conditions as with width search are used, see ...
Page 162: Events Menu
® Search R&S RTM20xx Reference for Search Menu Start Sets the start time of the search area in relation to the trigger point. Remote command: on page 361 S EARch: G ATE: A BSolute: S TART Stop Sets the end time of the search area in relation to the trigger point. Remote command: ...
Page 163: Protocol Analysis
® Protocol Analysis R&S RTM20xx Basics of Protocol Analysis 11 Protocol Analysis With the R&S RTM and some additional options, you can analyze the following parallel and serial protocols: ● SPI (Serial Peripheral Interface with 3 lines) and SSPI (Serial Peripheral Interface with 2 lines) - requires option R&S RTM-K1 ●...
Page 164: Protocol - Common Settings
® Protocol Analysis R&S RTM20xx Basics of Protocol Analysis If you want the instrument to set the thresholds based on the analysis of the signals, press "Find level" in the protocol's "Configuration" menu. 1. Press the CH N key of the required channel. 2.
Page 165: Display Settings
® Protocol Analysis R&S RTM20xx Basics of Protocol Analysis Bus Type Defines the bus or protocol type for analysis. For most types, a special option to the instrument is required. Remote command: on page 375 B US<b>: T YPE Configuration Opens the configuration menu for the selected bus type.
Page 166: Label List
® Protocol Analysis R&S RTM20xx Basics of Protocol Analysis Label Opens the "Label" menu to define an additional name label for the selected bus. Label ← Label Displays or hides the bus label. The bus label is shown on the the right side of the display. You can enter a label text in several ways: ●...
Page 167 ® Protocol Analysis R&S RTM20xx Basics of Protocol Analysis The PTT file has three types of lines: ● Comment lines begin with a hash character #. A hash character at any other position in the line is treated like a standard character. ●...
Page 168 ® Protocol Analysis R&S RTM20xx Basics of Protocol Analysis 1,17,Pressure Label lists are protocol-specific. Their contents are described in the corresponding pro- tocol chapters: ● c hapter 11.3.4, "I C Label List", on page 172 ● c hapter 11.5.3, "CAN Label List", on page 191 ●...
Page 169: Frame Table: Decode Results
® Protocol Analysis R&S RTM20xx Basics of Protocol Analysis 11.1.5 Frame Table: Decode Results Access: PROTOCOL > "Frame Table" The frame table shows the detailed decoded data for each frame of the acquisition. The table content is protocol-specific, and the display of the table can be enabled for each individual bus type.
Page 170: Spi/Sspi Bus (Option R&S Rtm-K1)
® Protocol Analysis R&S RTM20xx SPI/SSPI Bus (Option R&S RTM-K1) Position Defines the position of the frame table on the screen: top right, bottom right, or full screen. With full screen setting, the frame table covers nearly the complete righthand half of the screen.
Page 171: Spi/Sspi Bus Configuration
® Protocol Analysis R&S RTM20xx SPI/SSPI Bus (Option R&S RTM-K1) The data bits of a message are grouped by following criteria: ● A word contains a number of successive bits. The word length is defined in the pro- tocol configuration. ●...
Page 172 ® Protocol Analysis R&S RTM20xx SPI/SSPI Bus (Option R&S RTM-K1) See: " To set the logic threshold for analog channels" on page 148 Now you can disply the decoded signal and the frame table with results. The display of the decoded data is described in "...
Page 173 ® Protocol Analysis R&S RTM20xx SPI/SSPI Bus (Option R&S RTM-K1) For data, the default is high active. Remote command: on page 377 B US<b>: S PI: C S: P OLarity on page 0 B US<b>: S PI: D ATA: P OLarity ...
Page 174: Spi/Sspi Trigger
® Protocol Analysis R&S RTM20xx SPI/SSPI Bus (Option R&S RTM-K1) 11.2.3 SPI/SSPI Trigger ● Triggering on SPI Buses..................159 ● SPI/SSPI Trigger Settings..................160 11.2.3.1 Triggering on SPI Buses Prerequisites: The SPI or SSPI bus is configured. After configuration, the trigger type "Protocol (SPI)"...
Page 175 ® Protocol Analysis R&S RTM20xx SPI/SSPI Bus (Option R&S RTM-K1) 11.2.3.2 SPI/SSPI Trigger Settings The complete SPI/SSPI trigger is configured in the "Source" and "Setup" menus. Triggers are only available if "Decode" is enabled. ● SPI/SSPI Trigger Source..................160 ● SPI/SSPI Trigger Setup..................160 SPI/SSPI Trigger Source Access: TRIGGER SETUP >...
Page 176 ® Protocol Analysis R&S RTM20xx SPI/SSPI Bus (Option R&S RTM-K1) Frame Start.........................161 Frame End........................161 Bit<x>..........................161 Ser. Pattern.........................161 └ Offset.......................161 └ Number of Bits....................162 └ Select Bit.......................162 └ State......................162 └ Select Nibble....................162 └ Value......................162 Frame Start Sets the trigger to the start of the message. For SPI, the frame starts when the chip select signal CS changes to the active state.
Page 177: Spi/Sspi Decode Results
® Protocol Analysis R&S RTM20xx SPI/SSPI Bus (Option R&S RTM-K1) Number of Bits ← Ser. Pattern Defines the length of the serial pattern in bit. Remote command: on page 381 T RIGger: A : S PI: P LENgth Select Bit ← Ser. Pattern Selects the bit number for binary pattern setting.
Page 178 ® Protocol Analysis R&S RTM20xx SPI/SSPI Bus (Option R&S RTM-K1) Fig. 11-2: Decoded SPI signal = Clock (Clk) = Data = Chip Select (Cs) blue results = completely decoded words grey brackets = start and end of complete frame red results = Incomplete word that is not completely contained in the acquisition.
Page 179 ® Protocol Analysis R&S RTM20xx SPI/SSPI Bus (Option R&S RTM-K1) Fig. 11-3: Decoded SSPI signal with frame table Table 11-1: Content of the SPI/SSPI frame table Column Description Start time Time of the frame start in relation to the trigger point Source MISO or MOSI line Length...
Page 180: I²C (Option R&S Rtm-K1)
® Protocol Analysis R&S RTM20xx I²C (Option R&S RTM-K1) on page 384 B US<b>: S PI: F RAME<n>: W ORD<o>: S TARt? on page 384 B US<b>: S PI: F RAME<n>: W ORD<o>: S TOP? on page 385 B US<b>:...
Page 181 ® Protocol Analysis R&S RTM20xx I²C (Option R&S RTM-K1) ● Stop condition: a rising slope on SDA while SCL is high Fig. 11-4: I2C write access with 7-bit address Address types: 7-bit and 10-bit Slave addresses can be 7 or 10 bits long. A 7-bit address requires one byte, 7 bits for the address followed by the R/W bit.
Page 182: I²C Configuration
® Protocol Analysis R&S RTM20xx I²C (Option R&S RTM-K1) ● Bytes with missing acknowledge bit ● Specific slave address ● Specific data pattern in the message 11.3.2 I²C Configuration 11.3.2.1 Configuring I²C The configuration of the I²C is simple - only assign the two lines to input channels. 1.
Page 183: I²C Trigger
® Protocol Analysis R&S RTM20xx I²C (Option R&S RTM-K1) Find Level The instrument analyzes all lines that are configured for the selected bus and sets the threshold for digitization of analog signals for each channel. If no level can be found, the existing value remains unchanged, and you can set the thresholds manually in the chan- nel menu: CH N >...
Page 184 ® Protocol Analysis R&S RTM20xx I²C (Option R&S RTM-K1) c) Press "Data Setup" to specify data bytes of the message, and/or to a serial pat- tern. d) Set the "Byte Offset", the number of bytes to be ignored before the first byte of interes.t e) Set the "Number of Bytes"...
Page 185 ® Protocol Analysis R&S RTM20xx I²C (Option R&S RTM-K1) └ Address Length.....................171 └ Slave Address....................171 └ Data Setup....................171 └ Byte Offset..................172 └ Number of Bytes.................172 └ Bit......................172 └ State....................172 └ Byte.....................172 └ Value....................172 Start Sets the trigger to the start of the message. The start condition is a falling slope on SDA while SCL is high.
Page 186 ® Protocol Analysis R&S RTM20xx I²C (Option R&S RTM-K1) Remote command: on page 391 (PATTern) T RIGger: A : I 2C: P ATTern Master ← Read/Write Toggles the trigger condition between Read and Write access of the master. The R/W bit is 8th bit of the first address byte of a frame.
Page 187: I 2 C Label List
® Protocol Analysis R&S RTM20xx I²C (Option R&S RTM-K1) Byte Offset ← Data Setup ← Read/Write Sets the number of bytes before the first byte of interest, relating to the end of the address bytes. These offset bytes are ignored. Remote command: ...
Page 188: I 2 C Decode Results
® Protocol Analysis R&S RTM20xx I²C (Option R&S RTM-K1) 7,0x51,EEPROM 10,0x3A2,DeviceSetup 10,0x1A3,GatewayStatus 10,0x06E,LeftSensor # ---------------------------------------------------------------------------- Fig. 11-7: Label list for I²C For general information, see c hapter 11.1.4, "Label List", on page 151. 11.3.5 I C Decode Results You can enable the decoding in the "Protocol" main menu. "Decode" shows the decoded values below the waveforms in the format selected with "Display".
Page 189 ® Protocol Analysis R&S RTM20xx I²C (Option R&S RTM-K1) Fig. 11-8: Decoded and binary I2C signal, and frame table with decode results gray brackets = start and end of the frame violet = address blue = correct data words green = acknowledge bit, ok = missing acknowledge bit, or other error Table 11-2: Content of the I...
Page 190: Uart/Rs-232 Interface (Option R&S Rtm-K2)
® Protocol Analysis R&S RTM20xx UART/RS-232 Interface (Option R&S RTM-K2) Remote commands: ● on page 392 B US<b>: I 2C: F COunt? on page 392 B US<b>: I 2C: F RAMe<n>: D ATA? on page 393 B US<b>: I 2C: F RAMe<n>: S TATus? ...
Page 191: Uart/Rs-232 Configuration
® Protocol Analysis R&S RTM20xx UART/RS-232 Interface (Option R&S RTM-K2) The UART protocol has no clock for synchronization. The receiver synchronizes by means of the start and stop bits, and the bit rate that must be known to the receiver. Trigger The R&S RTM can trigger on specified parts of UART serial signals: ●...
Page 192 ® Protocol Analysis R&S RTM20xx UART/RS-232 Interface (Option R&S RTM-K2) 12. Press "Find level", or set the threshold manually for each channel. See: " To set the logic threshold for analog channels" on page 148 Now you can disply the decoded signal and the frame table with results. The display of the decoded data is described in ...
Page 193 ® Protocol Analysis R&S RTM20xx UART/RS-232 Interface (Option R&S RTM-K2) Active Defines the logic levels of the bus. The idle state corresponds to a logic 1, and the start bit to a logic 0. Active-high (high=1) is used, for example, for control signals, while active- low (low=1) is defined for data lines (RS-232).
Page 194: Uart/Rs-232 Trigger
® Protocol Analysis R&S RTM20xx UART/RS-232 Interface (Option R&S RTM-K2) Find Level The instrument analyzes all lines that are configured for the selected bus and sets the threshold for digitization of analog signals for each channel. If no level can be found, the existing value remains unchanged, and you can set the thresholds manually in the chan- nel menu: CH N >...
Page 195 ® Protocol Analysis R&S RTM20xx UART/RS-232 Interface (Option R&S RTM-K2) ● For hex entry, select "Value" and turn the navigation knob to change the bits. ● For binary input, press "Select Bit" and enter the data bit number to be set. Enter the "State"...
Page 196 ® Protocol Analysis R&S RTM20xx UART/RS-232 Interface (Option R&S RTM-K2) UART Trigger Source Access: TRIGGER SETUP > "Trigger Type" = "Protocol (UART)" > "Source" RX, TX Select one of the lines as trigger source. Remote command: on page 402 T RIGger:...
Page 197 ® Protocol Analysis R&S RTM20xx UART/RS-232 Interface (Option R&S RTM-K2) Frame Start Triggers on the begin of a frame. The frame start is the first start bit after the idle time. Remote command: on page 402 (BSTart) T RIGger: A : U ART: M ODE Symbol <n>...
Page 198: Uart/Rs-232 Decode Results
® Protocol Analysis R&S RTM20xx UART/RS-232 Interface (Option R&S RTM-K2) Select Symbol ← Pattern Selects the symbol for binary or hex input. Value ← Pattern Sets the hexadecimal value for the selected symbol by turning the navigation knob. Parity Error Triggers on a parity error indicating a transmission error.
Page 199 ® Protocol Analysis R&S RTM20xx UART/RS-232 Interface (Option R&S RTM-K2) Fig. 11-10: Decoded UART signal = Data source blue results = completely decoded words grey brackets = start and end of complete frames green results = correct parity bits red results = Errors or incomplete word that is not completely contained in the acquisition.
Page 200: Can (Option R&S Rtm-K3)
® Protocol Analysis R&S RTM20xx CAN (Option R&S RTM-K3) ● on page 404 B US<b>: U ART: R X: F RAMe<n>: W COunt? ● on page 0 B US<b>: U ART: R X: F RAMe<n>: W ORD<o>: S TATe? ●...
Page 201: Can Trigger Settings
® Protocol Analysis R&S RTM20xx CAN (Option R&S RTM-K3) Sample point Sets the position of the sample point within the bit in percent of the nominal bit time. The sample point divides the nominal bit period into two distinct time segments, which are used for resynchronization of the clock.
Page 202 ® Protocol Analysis R&S RTM20xx CAN (Option R&S RTM-K3) Start of frame......................187 End of frame........................187 Frame <type>......................187 └ Error......................187 └ Overload.......................188 └ Data......................188 └ Remote......................188 └ Data or remote....................188 Error <type>........................188 └ Stuff bit......................188 └ Form......................188 └ Acknowledge....................188 └ CRC......................189 Identifier........................189 └...
Page 203 ® Protocol Analysis R&S RTM20xx CAN (Option R&S RTM-K3) Overload ← Frame <type> An overload frame is sent by a node that needs a delay between data and/or remote frames. Data ← Frame <type> Frame for data transmission. The identifier format is also considered, see "...
Page 204 ® Protocol Analysis R&S RTM20xx CAN (Option R&S RTM-K3) CRC ← Error <type> CAN uses the Cyclic Redundancy Check, which is a complex checksum calculation method. The transmitter calculates the CRC and sends the result in the CRC sequence. The receiver calculates the CRC in the same way. A CRC error occurs when the calcu- lated result differs from the received value in the CRC sequence.
Page 205 ® Protocol Analysis R&S RTM20xx CAN (Option R&S RTM-K3) ID type ← Identifier Setup ← Identifier Selects the length of the identifier: 11 bit for CAN base frames, or 29 bits for CAN exten- ded frames. Remote command: on page 408 T RIGger:...
Page 206: Can Label List
® Protocol Analysis R&S RTM20xx CAN (Option R&S RTM-K3) Most settings are the same as for identifier input. See: ● " Compare" on page 190 ● " Bit" on page 190 ● " State" on page 190 ●...
Page 207: Can Decode Results
® Protocol Analysis R&S RTM20xx CAN (Option R&S RTM-K3) 29,0x03B1C002,Airbag_Status 29,0x01234ABC,NM_Gateway # ---------------------------------------------------------------------------- Fig. 11-11: Label list for CAN For general information, see c hapter 11.1.4, "Label List", on page 151. 11.5.4 CAN Decode Results You can enable the decoding in the "Protocol" main menu. "Decode" shows the decoded values below the waveforms in the format selected with "Display".
Page 208 ® Protocol Analysis R&S RTM20xx CAN (Option R&S RTM-K3) Fig. 11-12: Decoded CAN signal with frame table and applied label list violet = identifier gray = DLC, data length code blue = data words = error occured, error frame Table 11-4: Content of the CAN frame table Column Description Start time...
Page 209: Search On Decoded Can Data
® Protocol Analysis R&S RTM20xx CAN (Option R&S RTM-K3) Remote commands: ● on page 411 B US<b>: C AN: F COunt? on page 413 B US<b>: C AN: F RAMe<n>: D ATA? on page 412 B US<b>: C AN: F RAMe<n>: S TATus? ...
Page 210 ® Protocol Analysis R&S RTM20xx CAN (Option R&S RTM-K3) If you search for remote or data frames, the search consideres also the ID type, the length of the identifier. The setting is only available if "Event" = "Frame" is selected. Remote command: ...
Page 211 ® Protocol Analysis R&S RTM20xx CAN (Option R&S RTM-K3) After setting the "Data length" and the "Comparison" condition, you can enter the value bit-by-bit by setting the state high, low, or don't care for each single bit. Alternatively, you can enter a hexadecimal value for each byte. The settings are the same as for the setup of the data trigger, see ...
Page 212: Lin (Option R&S Rtm-K3)
® Protocol Analysis R&S RTM20xx LIN (Option R&S RTM-K3) 11.6 LIN (Option R&S RTM-K3) The Local Interconnect Network (LIN) is a simple, low-cost bus system used within auto- motive network architectures. LIN is usually a sub-network of a CAN bus. The primary purpose of LIN is the integration of uncritical sensors and actuators with low bandwidth requirements.
Page 213: Lin Configuration Settings
® Protocol Analysis R&S RTM20xx LIN (Option R&S RTM-K3) The identifier byte consists of 6 bits for the frame identifier and two parity bits. This com- bination is known as protected identifier. Trigger The R&S RTM can trigger on various parts of LIN frames. The data line must be con- nected to an input channel, triggering on math and reference waveforms is not possible.
Page 214: Lin Trigger Settings
® Protocol Analysis R&S RTM20xx LIN (Option R&S RTM-K3) The most common version is LIN 2.x. For mixed networks, or if the standard is unknown, set the LIN standard to "Auto". Remote command: on page 422 B US<b>: L IN: S TANdard Bit rate Sets the number of transmitted bits per second.
Page 215 ® Protocol Analysis R&S RTM20xx LIN (Option R&S RTM-K3) Identifier and data.......................201 └ Identifier Setup....................202 └ Data Setup....................202 └ No. of Bytes..................202 Start of Frame Triggers on the stop bit of the sync field. Remote command: on page 423 (SYNC) T RIGger:...
Page 216 ® Protocol Analysis R&S RTM20xx LIN (Option R&S RTM-K3) After setting the "Compare" condition, you can enter the value bit-by-bit by setting the state high, low, or don't care for each single bit. Alternatively, you can enter a hexadecimal value for each byte. If a label list with node names was loaded and applied in the bus configuration, you can select simply the "Symbolic ID"...
Page 217: Lin Label List
® Protocol Analysis R&S RTM20xx LIN (Option R&S RTM-K3) Identifier Setup ← Identifier and data Opens the "Identifier" menu. The identifier conditions are the same as for the "Identifier" trigger type, see " Identifier" on page 200. Data Setup ← Identifier and data Opens a menu to set the data pattern.
Page 218: Lin Decode Results
® Protocol Analysis R&S RTM20xx LIN (Option R&S RTM-K3) 0x06,Dashboard 0x13,Gateway 0x1C,Temperature 0x21,Mirror 0x37,Indoor lights # Labels for reserved addresses 0x3C,Master_Request_Frame 0x3D,Slave_Response_Frame # ---------------------------------------------------------------------------- Fig. 11-15: Label list for CAN For general information, see c hapter 11.1.4, "Label List", on page 151. 11.6.5 LIN Decode Results You can enable the decoding in the "Protocol"...
Page 219 ® Protocol Analysis R&S RTM20xx LIN (Option R&S RTM-K3) Fig. 11-16: Decoded LIN signal with frame table and applied label list gray = synchronization break, synchronization byte, correct checksum yellow = identifier green = parity bits blue = data words (UART words) Table 11-5: Content of the LIN frame table Column Description...
Page 220: Search On Decoded Lin Data
® Protocol Analysis R&S RTM20xx LIN (Option R&S RTM-K3) ● on page 426 B US<b>: L IN: F RAMe<n>: D ATA? ● on page 427 B US<b>: L IN: F RAMe<n>: S TATus? ● on page 427 B US<b>:...
Page 221 ® Protocol Analysis R&S RTM20xx LIN (Option R&S RTM-K3) The setting is only available if "Event" = "Frame" is selected. Remote command: on page 432 S EARch: P ROTocol: L IN: F RAMe Error Setup Selects the error type to be searched for. You can select one or more error types as search condition.
Page 222 ® Protocol Analysis R&S RTM20xx LIN (Option R&S RTM-K3) 11.6.6.2 LIN Search Results Search results (events) are marked on the waveform and listed in the event table as usual. Instead of the event table, you can display the frame table, where the search results are also marked.
Page 223: Mixed Signal Option (Mso, R&S Rtm-B1)
® Mixed Signal Option (MSO, R&S RTM-B1) R&S RTM20xx About MSO 12 Mixed Signal Option (MSO, R&S RTM-B1) The Mixed Signal Option R&S RTM-B1 adds logic analyzer functions to the classical oscilloscope functions. Using the MSO option, you can analyze and debug embedded systems with mixed-signal designs that use analog signals and correlated digital signals simultaneously.
Page 224: Digital Channels
® Mixed Signal Option (MSO, R&S RTM-B1) R&S RTM20xx Digital Channels The following measurement types are available for single digital channels (bits): fre- quency, period, edge and pulse counts, phase, delay, duty cycle, burst width. Statistical evaluation of these measurements is also possible. 12.2 Digital Channels 12.2.1 Digital Channels - Configuration Settings Access: PROTOCOL LOGIC >...
Page 225 ® Mixed Signal Option (MSO, R&S RTM-B1) R&S RTM20xx Digital Channels For each acquired sample, the instrument compares the input voltage with the threshold value. If the input voltage is above the threshold, the signal state "1" is stored. Otherwise, the signal state "0"...
Page 226: Parallel Buses
® Mixed Signal Option (MSO, R&S RTM-B1) R&S RTM20xx Parallel Buses Label ← Label Displays or hides the label of the selected digital channel. Remote command: on page 437 D IGital<m>: L ABel: S TATe Library ← Label Selects a label text from a list of frequently used terms. Edit Label ←...
Page 227: Parallel Clocked Bus
® Mixed Signal Option (MSO, R&S RTM-B1) R&S RTM20xx Parallel Buses 7. To configure the "Parallel Clocked" bus: a) Select the "Bus Width". b) Press "Chip Select" and select the digital channel connected to CS. c) Select the "Active" state of chip select. d) Press "Clock"...
Page 228: Parallel Bus (Unclocked)
® Mixed Signal Option (MSO, R&S RTM-B1) R&S RTM20xx Parallel Buses Slope Selects if the data is sampled on the rising or falling slope of the clock, or on both edges of a double data rate clock. The clock slope marks the begin of a new bit. Remote command: ...
Page 229 ® Mixed Signal Option (MSO, R&S RTM-B1) R&S RTM20xx Parallel Buses 12.3.3.2 Parallel Bus - Decode Results You can enable the decoding in the "Protocol" main menu. "Decode" shows the decoded values below the waveforms in the format selected with "Display". Additionally, you can display the binary signal with "Bits".
Page 230: Data And File Management
® Data and File Management R&S RTM20xx Printing 13 Data and File Management This chapter describes how to print screenshots and how to manage measurement set- tings and data. ● Printing........................215 ● Saving and Loading....................217 13.1 Printing You can create a sceenshot of the current display of your waveforms and measurement results and print it on a printer.
Page 231: Printer Settings
® Data and File Management R&S RTM20xx Printing 13.1.1.2 Starting the Printout Infrequent printouts can be started from the "File" menu. 1. Make sure that the printer is configured correctly. See: c hapter 13.1.1.1, "Configuring the Printer Output", on page 215 2.
Page 232: Saving And Loading
® Data and File Management R&S RTM20xx Saving and Loading "Inverted" Inverts the colors of the output, i.e. a dark waveform is printed on a white background. Remote command: on page 442 H COPy: C OLor: S CHeme Command Set Sets the printer language that is supported by the printer.
Page 233 ® Data and File Management R&S RTM20xx Saving and Loading 13.2.1.1 Configuring Storage Locations You must configure the storage settings for the various data types initially: select the storage location and the storage directory, and define the file name. For some data types, further storage settings are available.
Page 234 ® Data and File Management R&S RTM20xx Saving and Loading The name of the target file can be changed, so you can copy and rename in one operation. For references and masks, you can also change the target file format and convert the data during export/import.
Page 235 ® Data and File Management R&S RTM20xx Saving and Loading 13.2.1.3 General Storage Settings This chapter describes the general settings to save, load, and export/import data. ● Save Menu......................220 ● Load Menu......................221 ● Storage Directory Menu..................221 ● Import/Export Menu....................222 Save Menu The "Save"...
Page 236 ® Data and File Management R&S RTM20xx Saving and Loading Save Saves the data to the selected storage directory. The used file name is displayed when storage is completed. Remote command: Device settings: on page 449 M MEMory: S TORe: S TATe Other data: ...
Page 237 ® Data and File Management R&S RTM20xx Saving and Loading Waveforms and screenshots can only be stored on a USB stick connected to the front or rear panel, not to an internal directory. If you want to store a waveform or scrrenshot, and no USB stick is currently connected, the "Storage"...
Page 238: Quick Access With Print Key
® Data and File Management R&S RTM20xx Saving and Loading Source.........................223 Destination........................223 Import/Export.......................223 Source Opens the "Load" menu and a file explorer to select the source file of the import/export operation. See " Load Menu" on page 221. Destination Opens the "Storage"...
Page 239 ® Data and File Management R&S RTM20xx Saving and Loading 13.2.2.1 Configuring the PRINT-Key Behavior The PRINT key can either be used to print screenshots to a connected printer, or to save data to a specified storage location just by pressing a single key. 1.
Page 240: Device Settings
® Data and File Management R&S RTM20xx Saving and Loading Screen & Setup If selected, the device settings and a screenshot of the current display are stored when you press the PRINT key. Storage settings are configured with FILE > "Screenshots" and FILE >...
Page 241 ® Data and File Management R&S RTM20xx Saving and Loading Note: To save the device settings several times by pressing simply the PRINT key, assign the "Device Settings" to the PRINT key as described in c hapter 13.2.2.1, "Configuring the PRINT-Key Behavior", on page 224.
Page 242: Waveforms
® Data and File Management R&S RTM20xx Saving and Loading Import/Export Device Settings Opens the "Import/Export" menu, see " Import/Export Menu" on page 222. Memory Usage Displays information on the instrument and information on used and available memory space on all available storage devices. Default sett.
Page 243 ® Data and File Management R&S RTM20xx Saving and Loading The first column contains the time values of the samples in relation to the trigger point, and the second column contains the associated amplitude values. The first line indicates the units of the values in each column, and the name of the waveform. Pairs of values are listed as two single values with the same time value (minimum and maximum).
Page 244 ® Data and File Management R&S RTM20xx Saving and Loading Words are given in Big Endian order - beginning with the MSB (Most Significant Byte) and ending with the LSB (Least Significant Byte). Pairs of values are listed as two sub- sequent single values, without any identification.
Page 245: Screenshots
® Data and File Management R&S RTM20xx Saving and Loading Waveform........................230 Format.........................230 Data..........................230 Waveform Selects the waveform to be stored. Turn the "Navigation" knob to select one of the avail- able waveforms (channel, reference, and math waveforms). Format Defines the format of the waveform storage file: BIN, CSV, TXT, or TRF. For details, see ...
Page 246 ® Data and File Management R&S RTM20xx Saving and Loading 2. Configure the storage location as described in " To select the storage directory" on page 218. 3. Enter the file name as described in " To define a new file or directory name" on page 218.
Page 247: References, Masks, And Equation Sets: Import/Export
® Data and File Management R&S RTM20xx Saving and Loading Print Prints the screenshot on a printer connected to the USB connector on the front or rear panel. The printer output is configured with SETUP > "Printer". The function is only available if a printer is connected. Remote command: ...
Page 248: General Instrument Setup
® General Instrument Setup R&S RTM20xx Firmware and Options 14 General Instrument Setup This chapter describes the firmware update, the activation of new options, and all softkeys of the "Setup" menu. The usage of the functions except of update is described in other chapters depending on the usage context: ●...
Page 249: Activating Options
® General Instrument Setup R&S RTM20xx Reference for Setup 2. Press SETUP > "Update > Interface". The currently installed firmware version as well as all available update versions are displayed. 3. Press "Execute" to install the available updates. 14.1.2 Activating Options You need the material number and serial number of your instrument to get a license key.
Page 250 ® General Instrument Setup R&S RTM20xx Reference for Setup └ Down....................237 └ Default....................237 └ Save....................237 Device Information......................237 Update.........................237 └ Firmware.......................237 └ Execute....................237 └ Interface......................238 └ Execute....................238 └ Upgrade......................238 └ Read keys from license file..............238 └ Input key manually................238 Printer..........................238 Sound..........................238 └...
Page 251 ® General Instrument Setup R&S RTM20xx Reference for Setup Language Selects the language in which the key labels, help and other screen information is dis- played. Currently, the help is available only in English. Remote command: on page 450 D ISPlay:...
Page 252: Down
® General Instrument Setup R&S RTM20xx Reference for Setup Parameter ← Interface Provides a settings dialog to configure the active additional interface. Changes are only adopted by the instrument after you press "Save". DHCP ← Parameter ← Interface Activates or deactivates usage of the Dynamic Host Configuration Protocol (DHCP). If the network supports dynamic TCP/IP configuration using DHCP, all address information can be assigned automatically.
Page 253: Interface
® General Instrument Setup R&S RTM20xx Reference for Setup Interface ← Update Some interfaces are provided with their own instrument-independant firmware. This interface firmware can also be updated. The currently installed firmware version is dis- played, as well as all available update versions, if a USB flash drive containing an update is identified.
Page 254: Self Alignment
® General Instrument Setup R&S RTM20xx Reference for Setup Self Alignment Opens a submenu to perform selftest and self-alignment of the instrument and to check the results. Self Test & Self Alignment ← Self Alignment Checks if a self-alignment has been executed successfully. If not, the self-alignment is executed.
Page 255: Automatic
® General Instrument Setup R&S RTM20xx Reference for Setup Automatic ← Probe Adjust A square wave is generated at the "Probe Adjust" pin. The frequency of the square wave depends on the defined time base. If the time base becomes too small to display the 1 kHz wave, it is automatically switched to a 1 MHz wave.
Page 256: Remote Control
® Remote Control R&S RTM20xx Basics 15 Remote Control 15.1 Basics This chapter provides basic information on operating an instrument via remote control. 15.1.1 Remote Control Interfaces For remote control, the LAN, USB or the GPIB interface can be used. The GPIB interface (Option RTM-B10) replaces the LAN / USB type B interface module on the rear panel.
Page 257 ® Remote Control R&S RTM20xx Basics SCPI-confirmed commands are explicitly marked in the command reference chapters. Commands without SCPI label are device-specific, however, their syntax follows SCPI rules. 15.1.1.1 LAN Interface The R&S RTM is equipped with a network interface and can be connected to an Ethernet LAN (local area network) for remote control of the instrument.
Page 258: Setting Up A Lan Connection
® Remote Control R&S RTM20xx Basics Characteristics The GPIB interface is described by the following characteristics: ● Up to 15 instruments can be connected ● The total cable length is restricted to a maximum of 15 m; the cable lenth between two instruments should not exceed 2m.
Page 259 ® Remote Control R&S RTM20xx Basics By default, the instrument is configured to use dynamic TCP/IP configuration and obtain all address information automatically. This means that it is safe to establish a physical connection to the LAN without any previous instrument configuration. Risk of network errors Connection errors can affect the entire network.
Page 260 ® Remote Control R&S RTM20xx Basics Some data is displayed for information only and cannot be edited. This includes the "MAC" (physical) address of the connector and the "Link" status information. 6. If the LAN does not support DHCP, or the instrument is directly connected with a computer, disable DHCP: Press the "DHCP"...
Page 261 ® Remote Control R&S RTM20xx Basics 12. Press "Save" to save the LAN parameters on the instrument. The "Link" status information at the bottom of the dialog box indicates whether a LAN connection was established successfully. Checking LAN and SCPI connection 1.
Page 262 ® Remote Control R&S RTM20xx Basics 15.1.2.3 Connecting with the Instrument: VISA Address String Only the IP address of the instrument is required to set up the connection. It identifies the instrument in the network and is part of the resource string used by the programs to identify and control the instrument.
Page 263: Switching To Remote Control
® Remote Control R&S RTM20xx Basics Raw socket mode TCPIP::<IP_address>::<IP_port>::SOCKET The default port number for SCPI socket communication is 5025. Example: If the instrument has the IP address 192.1.2.3; the valid resource string is: TCPIP::192.1.2.3::5025::SOCKET With host name instead of IP address: TCPIP::<host_name>::<IP_port>::SOCKET Example: If the host name is RSRT1;...
Page 264 ® Remote Control R&S RTM20xx Basics Commands Commands (program messages) are messages the controller sends to the instrument. They operate the instrument functions and request information. The commands are sub- divided according to two criteria: ● According to the effect they have on the instrument: –...
Page 265 ® Remote Control R&S RTM20xx Basics Command Long term Effect on the instrument &NREN Not Remote Enable Enables switchover from remote control to manual opera- tion by means of the front panel keys &POL Serial Poll Starts a serial poll. GPIB Interface Messages Interface messages are transmitted to the instrument on the data lines, with the attention line (ATN) being active (LOW).
Page 266 ® Remote Control R&S RTM20xx Basics Command Effect on the instrument PPC (Parallel Poll Configure) Configures the instrument for parallel poll. SDC (Selected Device Clear) Aborts the processing of the commands just received and sets the command processing software to a defined initial state. Does not change the instrument setting.
Page 267 ® Remote Control R&S RTM20xx Basics Syntax for Device-Specific Commands Not all commands used in the following examples are necessarily implemented in the instrument. For demonstration purposes only, assume the existence of the following commands for this section: ● DISPlay[:WINDow<1...4>]:MAXimize <Boolean> ●...
Page 268 ® Remote Control R&S RTM20xx Basics Example: Definition: HardCOPy:PAGE:DIMensions:QUADrant[<N>] Command: HCOP:PAGE:DIM:QUAD2 This command refers to the quadrant 2. Different numbering in remote control For remote control, the suffix may differ from the number of the corresponding selection used in manual operation. SCPI prescribes that suffix counting starts with 1. Suffix 1 is the default state and used when no specific suffix is specified.
Page 269 ® Remote Control R&S RTM20xx Basics Special characters Parameters A vertical stroke in parameter definitions indicates alternative possibilities in the sense of "or". The effect of the command differs, depending on which parameter is used. Example: Definition:HardCOPy:PAGE:ORIentation LANDscape | PORTrait Command HCOP:PAGE:ORI LAND specifies landscape orientation Command HCOP:PAGE:ORI PORT specifies portrait orientation Mnemonics...
Page 270 ® Remote Control R&S RTM20xx Basics Numeric values Numeric values can be entered in any form, i.e. with sign, decimal point and exponent. Values exceeding the resolution of the instrument are rounded up or down. The mantissa may comprise up to 255 characters, the exponent must lie inside the value range -32000 to 32000.
Page 271 ® Remote Control R&S RTM20xx Basics Queries for special numeric values The numeric values associated to MAXimum/MINimum can be queried by adding the corresponding mnemonics to the command. They must be entered following the quota- tion mark. Example: SENSe:LIST:FREQ? MAXimum Returns the maximum numeric value as a result.
Page 272 ® Remote Control R&S RTM20xx Basics Example: FORMat:READings:DATA #45168xxxxxxxx The ASCII character # introduces the data block. The next number indicates how many of the following digits describe the length of the data block. In the example the 4 following digits indicate the length to be 5168 bytes.
Page 273 ® Remote Control R&S RTM20xx Basics If the successive commands belong to the same system, having one or several levels in common, the command line can be abbreviated. To this end, the second command after the semicolon starts with the level that lies below the common levels. The colon following the semicolon must be omitted in this case.
Page 274: Command Sequence And Synchronization
® Remote Control R&S RTM20xx Basics 15.1.5 Command Sequence and Synchronization IEEE 488.2 defines a distinction between overlapped and sequential commands: ● A sequential command is one which finishes executing before the next command starts executing. Commands that are processed quickly are usually implemented as sequential commands.
Page 275 ® Remote Control R&S RTM20xx Basics Example: Overlapping command with *OPC The instrument implements SINGle as an overlapped (asynchronous) command. Assuming that SINGle takes longer to execute than *OPC, sending the following com- mand sequence results in initiating a sweep and, after some time, setting the OPC bit in the ESR: SINGle;...
Page 276: Status Reporting System
® Remote Control R&S RTM20xx Basics 4. Wait for a service request The service request indicates that the overlapped command has finished. *OPC? with a service request 1. Set bit no. 4 in the SRE: *SRE 16 to enable MAV service request. 2.
Page 277 ® Remote Control R&S RTM20xx Basics 15.1.6.1 Structure of a SCPI Status Register Each standard SCPI register consists of 5 parts. Each part has a width of 16 bits and has different functions. The individual bits are independent of each other, i.e. each hardware status is assigned a bit number which is valid for all five parts.
Page 278 ® Remote Control R&S RTM20xx Basics This part can be written into and read as required. Its contents are not affected by reading. ● EVENt The EVENt part indicates whether an event has occurred since the last reading, it is the "memory"...
Page 279 ® Remote Control R&S RTM20xx Basics Fig. 15-2: Overview of the status registers hierarchy ● STB, SRE The STatus Byte (STB) register and its associated mask register Service Request Enable (SRE) form the highest level of the status reporting system. The STB provides a rough overview of the instrument status, collecting the information of the lower-level registers.
Page 280 ® Remote Control R&S RTM20xx Basics The output buffer contains the messages the instrument returns to the controller. It is not part of the status reporting system but determines the value of the MAV bit in the STB and thus is represented in the overview. All status registers have the same internal structure.
Page 281 ® Remote Control R&S RTM20xx Basics Bit No. Meaning ESB bit Sum bit of the event status register. It is set if one of the bits in the event status register is set and enabled in the event status enable register. Setting of this bit indicates a serious error which can be specified in greater detail by polling the event status register.
Page 282 ® Remote Control R&S RTM20xx Basics Bit No. Meaning User Request This bit is set when the instrument is switched over to manual control. Power On (supply voltage on) This bit is set on switching on the instrument. STATus:OPERation Register In the CONDition part, this register contains information on which actions the instrument is being executing.
Page 283 ® Remote Control R&S RTM20xx Basics Fig. 15-3: Overview of the STATus:QUEStionable register Table 15-6: Bits in the STATus:QUEStionable register Bit No. Meaning 0 to 2 not used COVerload This bit is set if a questionable channel overload occurs (see "...
Page 284 ® Remote Control R&S RTM20xx Basics Bit No. Meaning NOALigndata This bit is set if no alignment data is available - the instrument is uncalibrated. LIMit This bit is set if a limit value is violated (see " STATus:QUEStionable:LIMit register" on page 269).
Page 285 ® Remote Control R&S RTM20xx Basics Table 15-9: Bits in the STATus:QUEStionable:LIMit register Bit No. Meaning MEAS1 MEAS2 MEAS3 MEAS4 STATus:QUEStionable:MASK register This register contains information about the violation of masks. This bit is set if the assigned mask is violated. Table 15-10: Bits in the STATus:QUEStionable:MASK register Bit No.
Page 286 ® Remote Control R&S RTM20xx Basics Serial Poll In a serial poll, just as with command *STB, the status byte of an instrument is queried. However, the query is realized via interface messages and is thus clearly faster. The serial poll method is defined in IEEE 488.1 and used to be the only standard possi- bility for different instruments to poll the status byte.
Page 287: General Programming Recommendations
® Remote Control R&S RTM20xx Basics The error queue should be queried after every SRQ in the controller program as the entries describe the cause of an error more precisely than the status registers. Especially in the test phase of a controller program the error queue should be queried regularly since faulty commands from the controller to the instrument are recorded there as well.
Page 288: Command Reference
® Remote Control R&S RTM20xx Command Reference Therefore, control programs should always define an initial instrument status (e.g. using the *RST command) and then implement the required settings. Command sequence As a general rule, send commands and queries in different program messages. Other- wise, the result of the query may vary depending on which operation is performed first (see also Preventing Overlapping Execution).
Page 289: Common Commands
® Remote Control R&S RTM20xx Command Reference Commands that are taken from the SCPI standard are indicated as SCPI con- firmed. All commands used by the R&S RTM follow the SCPI syntax rules. ● Asynchronous commands A command which does not automatically finish executing before the next command starts executing (overlapping command) is indicated as an Asynchronous com- mand.
Page 290 ® Remote Control R&S RTM20xx Command Reference *ESE <Value> Event Status Enable Sets the event status enable register to the specified value. The query returns the con- tents of the event status enable register in decimal form. Parameters: <Value> Range: 0 to 255 *ESR? Event Status Read...
Page 291 ® Remote Control R&S RTM20xx Command Reference Usage: Query only *PSC <Action> Power on Status Clear Determines whether the contents of the ENABle registers are preserved or reset when the instrument is switched on. Thus a service request can be triggered when the instru- ment is switched on, if the status registers ESE and SRE are suitably configured.
Page 292: General Remote Settings And Queries
® Remote Control R&S RTM20xx Command Reference Triggers all actions waiting for a trigger event. In particular, *TRG generates a manual trigger signal (Manual Trigger). This common command complements the commands of the TRIGger subsystem. Usage: Event *TST? self TeST query Triggers selftests of the instrument and returns an error code in decimal form (see Service Manual supplied with the instrument).
Page 293 ® Remote Control R&S RTM20xx Command Reference ..............281 CHANnel<m>: D ATA: E NVelope: Y RESolution? ..............281 CALCulate: M ATH<m>: D ATA: Y RESolution? ................281 REFCurve<m>: D ATA: Y RESolution? FORMat[:DATA] <DataFormat>,<Accuracy> Defines the format for data export with ●...
Page 294 ® Remote Control R&S RTM20xx Command Reference <Accuracy> 0 | 8 | 16 | 32 Length of a data value in bit 0 - for ASC only 32 - for REAL 8 | 16 | 32 - for UINT *RST: Example: Set the ASCII data format: FORM ASC...
Page 295 ® Remote Control R&S RTM20xx Command Reference See Example: c hapter 15.3.1.2, "Reading Waveform Data in Unsigned Inte- Format", on page 458 Usage: Query only CHANnel<m>:DATA:XINCrement? CHANnel<m>:DATA:ENVelope:XINCrement? CALCulate:MATH<m>:DATA:XINCrement? REFCurve<m>:DATA:XINCrement? Return the time difference between two adjacent samples of the indicated waveform. The commands are relevant for data conversion if binary data format is defined (...
Page 296: Acquisition And Setup
® Remote Control R&S RTM20xx Command Reference See Example: c hapter 15.3.1.2, "Reading Waveform Data in Unsigned Inte- Format", on page 458 Usage: Query only CHANnel<m>:DATA:YRESolution? CHANnel<m>:DATA:ENVelope:YRESolution? CALCulate:MATH<m>:DATA:YRESolution? REFCurve<m>:DATA:YRESolution? Return the vertical bit resolution of the indicated waveform. The commands are relevant for data conversion if binary data format is defined (...
Page 297 ® Remote Control R&S RTM20xx Command Reference RUNContinous Same as RUN. Usage: Event Asynchronous command SINGle Starts a defined number of acquisitions. The number of acquisitions is set with ACQuire: N SINgle: C OUNt Usage: Event Asynchronous command RUNSingle Same as SINGle.
Page 298 ® Remote Control R&S RTM20xx Command Reference TIMebase:SCALe <TimeScale> Sets the horizontal scale for all channel and math waveforms. Parameters: <TimeScale> Range: 1,00E-009 to 50; lower limits are possible if zoom or FFT is enabled. Increment: 1, 2, 5 progression, for example, 1 ms/div, 2 ms/div, 5 ms/div, 10, 20, 50...
Page 299 ® Remote Control R&S RTM20xx Command Reference Usage: Query only TIMebase:POSition <Offset> Defines the trigger position (trigger offset) - the time interval between trigger point and reference point to analize the signal some time before or after the trigger event. See also: ...
Page 300 ® Remote Control R&S RTM20xx Command Reference ACQuire:MODE <AcquisitionMode> Selects the method of adding waveform points to the samples of the ADC in order to fill the record length. Parameters: <AcquisitionMode> RTIMe | ETIMe RTIMe Real Time Mode: At slow time base settings the sampled points of the input signal are used to build the waveform, no waveform points are added.
Page 301 ® Remote Control R&S RTM20xx Command Reference ACQuire:WRATe <WaveformRate> Defines the mode to set the sample rate (samples per second saved in the memory) and the waveform acquisition rate (waveforms per second). Parameters: <WaveformRate> AUTO | MWAVeform | MSAMples | MANual AUTO To display the best waveform, the instrument selects the optimum combination of waveform acquisition rate and sample rate using...
Page 302 ® Remote Control R&S RTM20xx Command Reference CHANnel<m>:ARIThmetics <TrArithmetic> Selects the method to build the resulting waveform from several consecutive acquisitions of the signal. Suffix: <m> The command affects all channels regardless of the indicated channel number. The suffix can be omitted. Parameters: <TrArithmetic>...
Page 303 ® Remote Control R&S RTM20xx Command Reference ACQuire:POINts:ARATe? Retrieves the sample rate of the ADC, that is the number of points that are sampled by the ADC in one second. Return values: <AcquisitionRate> ADC sample rate Range: 2.5E3 to 5,00E+009 Increment: 1,00E+003 *RST: 5,00E+009...
Page 304 ® Remote Control R&S RTM20xx Command Reference Parameters: <State> ON | OFF CHANnel<m>:COUPling <Coupling> Selects the connection of the indicated channel signal. Suffix: <m> Selects the input channel. The number of channels depends on the instrument. Parameters: <Coupling> DC | DCLimit | AC | ACLimit Direct connection with 50 Ω...
Page 305 ® Remote Control R&S RTM20xx Command Reference Parameters: <Range> Voltage range value Range: 8,00E-003 to 80; without probe attenuation *RST: 4,00E-002 Default unit: V CHANnel<m>:POSition <Position> Sets the vertical position of the indicated channel and its horizontal axis in the window. Suffix: <m>...
Page 306 ® Remote Control R&S RTM20xx Command Reference Parameters: <BandwidthLimit> FULL | B400 | B200 | B20 FULL Use full bandwidth. B400 | B200 | B20 Limit to 400MHz, 200 MHz, or 20 MHz respectively. B400 is not available for 350 MHz instruments (R&S RTM203x). *RST: FULL CHANnel<m>:POLarity <Polarity>...
Page 307 ® Remote Control R&S RTM20xx Command Reference Suffix: <m> Selects the input channel. The number of channels depends on the instrument. Parameters: <Skew> Deskew value Default unit: s CHANnel<m>:THReshold <Threshold> Threshold value for digitization of analog signals. If the signal value is higher than the threshold, the signal state is high (1 or true for the boolean logic).
Page 308 ® Remote Control R&S RTM20xx Command Reference 15.2.4.5 Waveform Data Consider also the following commands: ● on page 278 F ORMat[: D ATA] ● on page 280 C HANnel<m>: D ATA: X INCrement? ● on page 279 C HANnel<m>:...
Page 309 ® Remote Control R&S RTM20xx Command Reference CHANnel<m>:DATA:HEADer? Returns information on the channel waveform. For envelope waveforms, use the command. CHANnel<m>: D ATA: E NVelope: H EADer? Table 15-12: Header data Position Meaning Example XStart in s -9.477E-008 = - 94,77 ns XStop in s 9.477E-008 = 94,77 ns Record length of the waveform in Samples...
Page 310 ® Remote Control R&S RTM20xx Command Reference Table 15-13: Header data Position Meaning Example XStart in s -9.477E-008 = - 94,77 ns XStop in s 9.477E-008 = 94,77 ns Number of samples 200000 Number of values per sample interval. For envelope waveforms the value is 2.
Page 311 ® Remote Control R&S RTM20xx Command Reference Setting parameters: <Points> DEFault | MAXimum | DMAXimum Sets the range for data queries. DEFault Waveform samples that are visible as waveform points on the screen. MAXimum All waveform samples that are stored in the memory. Only avail- able if acquisition is stopped.
Page 312 ® Remote Control R&S RTM20xx Command Reference ..................300 PROBe<m>: I D: P ARTnumber? ....................301 PROBe<m>: I D: P RDate? ....................301 PROBe<m>: I D: S RNumber? ....................301 PROBe<m>: I D: S WVersion? PROBe<m>:SETup:ATTenuation[:AUTO]? Returns the attenuation of an automatically detected probe. Suffix: <m>...
Page 313 ® Remote Control R&S RTM20xx Command Reference Return values: <Bandwidth> Range: 1,00E+006 to 2,00E+009 Increment: 10 Default unit: Hz Usage: Query only PROBe<m>:SETup:CAPacitance? Queries the input capacity of the probe. Suffix: <m> Selects the input channel. The number of channels depends on the instrument.
Page 314 ® Remote Control R&S RTM20xx Command Reference PROBe<m>:SETup:MODE <Mode> Select the action that is started with the probe button. Suffix: <m> Selects the input channel. The number of channels depends on the instrument. Parameters: <Mode> RCONtinuous | RSINgle | AUToset | NOACtion RCONtinuous Run continuous: The acquisition is running as long as the probe button is pressed.
Page 315 ® Remote Control R&S RTM20xx Command Reference Suffix: <m> Selects the input channel. The number of channels depends on the instrument. Return values: <Type> NONE | ACTive | PASSive NONE not detected ACTive active probe PASSive passive probe Usage: Query only PROBe<m>:SETup:UOFFset <UserOffset>...
Page 316: Trigger
® Remote Control R&S RTM20xx Command Reference Return values: <PartNumber> string Returns the part number in a string. Usage: Query only PROBe<m>:ID:PRDate? Queries the production date of the probe. Suffix: <m> Selects the input channel. The number of channels depends on the instrument.
Page 317 ® Remote Control R&S RTM20xx Command Reference ● Video/TV Trigger....................307 ● Pattern Trigger......................308 ● Rise Time / Fall Time Trigger................310 ● B-Trigger.......................312 15.2.5.1 General A Trigger Settings ......................302 TRIGger: A : M ODE ..................302 TRIGger: A : L EVel<n>[: V ALue] .
Page 318 ® Remote Control R&S RTM20xx Command Reference Usage: Event TRIGger:A:SOURce <Source> Sets the trigger source for the selected A trigger type. Parameters: <Source> CH1 | CH2 | CH3 | CH4 | EXTernanalog | LINE | SBUS1 .. SBUS4 | D0..D15 CH1 | CH2 | CH3 | CH4 One of the input channels is the trigger source.
Page 319 ® Remote Control R&S RTM20xx Command Reference TRIGger:A:HYSTeresis <Hysteresis> Sets a hysteresis range around the trigger level of the A trigger event. If the signal jitters inside this range and crosses the trigger level thereby, no trigger event occurs. Hysteresis is available for edge and width trigger. Parameters: <Hysteresis>...
Page 320 ® Remote Control R&S RTM20xx Command Reference TRIGger:A:EDGE:COUPling <Coupling> Sets the coupling for the trigger source. Parameters: <Coupling> DC | AC | HF Direct Current coupling. The trigger signal remains unchanged. Alternating Current coupling. A 5 Hz high pass filter removes the DC offset voltage from the trigger signal.
Page 321 ® Remote Control R&S RTM20xx Command Reference Parameters: <Polarity> POSitive | NEGative POSitive Positive going pulse, the width is defined from the rising to the falling slopes. NEGative Negative going pulse, the width is defined from the falling to the rising slopes.
Page 322 ® Remote Control R&S RTM20xx Command Reference Parameters: <Time1> Center value, maximum value or minimum value depending on the defined range type. Range: 2,00E-008 to 6.87194685440 Increment: Depends on the <Time1> value *RST: 2,00E-008 15.2.5.4 Video/TV Trigger ....................307 TRIGger: A : T V: S TANdard .
Page 323 ® Remote Control R&S RTM20xx Command Reference Parameters: <Field> EVEN | ODD | ALL | LINE | ALINe EVEN | ODD Triggers only on the field start of even or odd fields. Only available for interlaced scanning. All fields, triggers on the frame start (progressive scanning) or any field start (interlaced scanning).
Page 324 ® Remote Control R&S RTM20xx Command Reference Example: With MSO option R&S RTM-B1: TRIG:A:PATT:SOUR "XXXX111101010011XXXX" Analog channels CH1 to CH4 do not matter (don't care). Digital channels D0 to D15 are logically combined with T RIGger: A : PATTern: F UNCtion TRIGger:A:PATTern:FUNCtion <Function>...
Page 325 ® Remote Control R&S RTM20xx Command Reference TRIGger:A:PATTern:WIDTh:RANGe <PatternRange> Selects how the time limit of the pattern state is defined. The time is specified using on page 310, the T RIGger: A : P ATTern: W IDTh[: W IDTh] range around is specified using ...
Page 326 ® Remote Control R&S RTM20xx Command Reference TRIGger:A:LEVel<n>:RISetime:LOWer <Level> TRIGger:A:LEVel<n>:RISetime:UPPer <Level> Set the loer and upper voltage threshold, respectively. When the signal crosses these levels, the slew rate measurement starts or stops depending on the selected polarity. Suffix: <n> 1..5 The suffix is not relevant, the level applies to all sources.
Page 327 ® Remote Control R&S RTM20xx Command Reference TRIGger:A:RISetime:DELTa <Variation> Sets a time range around the time value defined using T RIGger: A : R ISetime: T IME is set to WITHin | OUTSide. T RIGger: A : R ISetime: R ANGe Parameters: <Variation>...
Page 328 ® Remote Control R&S RTM20xx Command Reference Parameters: <Level> *RST: Default unit: V TRIGger:B:FINDlevel Sets the trigger level of the B-trigger event to 50% of the signal amplitude. Usage: Event TRIGger:B:MODE <Mode> Defines the delay type of the B-trigger. Parameters: <Mode>...
Page 329: Display
® Remote Control R&S RTM20xx Command Reference TRIGger:B:HYSTeresis <Hysteresis> Sets a hysteresis range around the trigger level of the B trigger event. If the signal jitters inside this range and crosses the trigger level thereby, no trigger event occurs. Parameters: <Hysteresis>...
Page 330 ® Remote Control R&S RTM20xx Command Reference Parameters: <Palette> NORMal | INVerse | FCOLor | IFColor NORMal Values that occur frequently are brighter than rare values. INVerse Rare values are brighter than frequent values, inverse to the NOR- Mal brightness. FColor Rare values are displayed in blue, while more frequent values are red and very frequent values are displayed in yellow or white, with...
Page 331 ® Remote Control R&S RTM20xx Command Reference DISPlay:XY:Y2Source <Source> Defines an optional second source to be displayed in y direction in an XY-diagram. The command is only relevant for 4-channel R&S RTM instruments. Parameters: <Source> NONE | CH1 | CH2 | CH3 | CH4 *RST: NONE DISPlay:XY:ZMODe <Mode>...
Page 332 ® Remote Control R&S RTM20xx Command Reference Parameters: <Source> CH1 | CH2 | CH3 | CH4 CH3 and CH4 are only available with 4-channel R&S RTM oscil- loscopes. *RST: Intensities ..................317 DISPlay: I NTensity: W AVeform ..................317 DISPlay: I NTensity: B ACKlight .
Page 333 ® Remote Control R&S RTM20xx Command Reference DISPlay:PERSistence:STATe <State> Defines whether the waveform persists on the screen or whether the screen is refreshed continuously. Parameters: <State> ON | OFF The waveform persists for the time defined using D ISPlay: PERSistence:...
Page 334 ® Remote Control R&S RTM20xx Command Reference DISPlay:PERSistence:CLEar Removes the displayed persistent waveform from the screen. Usage: Event Waveform, Auxilary Cursors and Grid Settings ......................319 DISPlay: S TYLe .....................319 DISPlay: G RID: S TYLe DISPlay:STYLe <Style> Defines how the waveform data is displayed Parameters: <Style>...
Page 335 ® Remote Control R&S RTM20xx Command Reference Parameters: <Enable> ON | OFF *RST: DISPlay:VSCReen:POSition <Position> Selects the divisions to be displayed on the virtual screen. The virtual screen has 20 divisions, 8 of them are displayed. Parameters: <Position> Indicated the position of the middle visible division. Range: -6 to 6.
Page 336 ® Remote Control R&S RTM20xx Command Reference TIMebase:ZOOM:POSition <Position> Defines the position of the zoom reference point (the reference point of the zoom window) in relation to the reference point of original time base. Parameters: <Position> Range: Depends on the zoom time base, nearly 0 to 100 % for large zoom *RST: Default unit: %...
Page 337: Reference Waveforms
® Remote Control R&S RTM20xx Command Reference Usage: Event 15.2.7 Reference Waveforms For data queries and conversion, consider also the following commands: ● on page 278 F ORMat[: D ATA] ● on page 280 R EFCurve<m>: D ATA: X INCrement? ●...
Page 338 ® Remote Control R&S RTM20xx Command Reference Parameters: <Source> CH1 | CH2 | CH3 | CH4 | MA1 | MA2 | MA3 | MA4 | RE1 | RE2 | RE3 | RE4 | D70 | D158 Any active channel, math, or reference waveform. Available chan- nels depend on the instrument type.
Page 339 ® Remote Control R&S RTM20xx Command Reference REFCurve<m>:LOAD <FileName> Loads the waveform data from the indicated reference file to the reference storage. To load the instrument settings, use R EFCurve<m>: L OAD: S TATe Suffix: <m> 1..4 Selects the reference waveform, the internal reference storage. Setting parameters: <FileName>...
Page 340 ® Remote Control R&S RTM20xx Command Reference REFCurve<m>:VERTical:SCALe <Scale> Changes the vertical scale of the reference waveform. Suffix: <m> 1..4 Selects the reference waveform, the internal reference storage. Parameters: <Scale> *RST: Default unit: V/div REFCurve<m>:VERTical:POSition <Position> Changes the vertical position of the reference waveform. Suffix: <m>...
Page 341: Measurements
® Remote Control R&S RTM20xx Command Reference Suffix: <m> 1..4 Selects the reference waveform, the internal reference storage. Parameters: <Header> Comma-separated value list Example: -9.477E-008,9.477E-008,200000,1 Usage: Query only 15.2.8 Measurements This chapter describes functions that configure or perform cursor and automatic meas- urements.
Page 342 ® Remote Control R&S RTM20xx Command Reference CURSor<m>:AOFF Switches the cursor off. Suffix: <m> The numeric suffix is irrelevant. Usage: Event CURSor<m>:STATe <State> Activates or deactivates the cursor measurement. Suffix: <m> The numeric suffix is irrelevant. Parameters: <State> ON | OFF *RST: CURSor<m>:SOURce <Source>...
Page 343 ® Remote Control R&S RTM20xx Command Reference Parameters: <Source> NONE | CH1 | CH2 | CH3 | CH4 | MA1 | MA2 | MA3 | MA4 | MA5 | RE1 | RE2 | RE3 | RE4 | XY1 | D0..D15 | D70 | D158 CH1 | CH2 | CH3 | CH4 Active channel waveform 1 to 4 MA1 | MA2 | MA3 | MA4 | MA5...
Page 344 ® Remote Control R&S RTM20xx Command Reference Value Description Queries for results PAIRed V-Marker C URSor<m>: Y 1Position same as C URSor<m>: T RACking[: S TATe] C URSor<m>: Y 2Position C URSor<m>: X DELta[: V ALue]? ...
Page 345 ® Remote Control R&S RTM20xx Command Reference CURSor<m>:TRACking[:STATe] <State> If set to ON, the V-Marker cursor measurement is enabled. Suffix: <m> The numeric suffix is irrelevant. Parameters: <State> ON | OFF *RST: CURSor<m>:X1Position <Xposition1> CURSor<m>:X2Position <Xposition2> CURSor<m>:X3Position <Xposition3> The commands specify the x-positions of vertical cursor lines on the time axis. The third cursor is only used for Ratio X measurement.
Page 346 ® Remote Control R&S RTM20xx Command Reference CURSor<m>:SWAVe Autoset for cursor lines, sets the cursor lines to typical points of the waveform depending on the selected measurement type. For example, for voltage measurement, the cursor lines are set to the upper and lower peaks of the waveform. For time measurement, the cursor lines are set to the edges of two consecutive positive or two consecutive negative pulses.
Page 347 ® Remote Control R&S RTM20xx Command Reference Parameters: <State> ON | OFF Cursor lines keep their relative position to the waveform. Cursor lines remain on their position on the display if the scaling is changed. *RST: CURSor<m>:RESult? Returns the measurement result for count, mean, RMS, rise and fall time, peak meas- urements, and burst width.
Page 348 ® Remote Control R&S RTM20xx Command Reference Usage: Query only CURSor<m>:YDELta:SLOPe? Returns the inverse value of the voltage difference - the reciprocal of the vertical distance Δ V. of two horizontal cursor lines: 1/ Suffix: <m> The numeric suffix is irrelevant. Return values: <DeltyYslope>...
Page 349 ® Remote Control R&S RTM20xx Command Reference Suffix: <m> The numeric suffix is irrelevant. Return values: <Ratio> Numeric value corresponding to the specified unit. Usage: Query only CURSor<m>:YRATio:UNIT <Unit> Sets the unit for Y Ratio measurements with C URSor<m>: Y RATio[: V ALue]? on page 334.
Page 350 ® Remote Control R&S RTM20xx Command Reference MEASurement<m>:ALL[:STATe] Starts or stops the quick measurement and sets the status bit. Parameters: <State> ON | OFF *RST: Firmware/Software: FW 03.800 MEASurement<m>:AON Starts the quick measurement. Suffix: <m> 1..4 The numeric suffix is irrelevant. Usage: Event MEASurement<m>:AOFF...
Page 351 ® Remote Control R&S RTM20xx Command Reference ...................339 MEASurement<m>: D ELay: S LOPe ................340 MEASurement<m>: R ESult[: A CTual]? ..................340 MEASurement<m>: C ATegory? MEASurement<m>[:ENABle] <State> Activates or deactivates the selected measurement (1-4). Only the results of active measurements are displayed in the result table.
Page 352 ® Remote Control R&S RTM20xx Command Reference Parameters: <MeasType> FREQuency | PERiod | PEAK | UPEakvalue | LPEakvalue | PPCount | NPCount | RECount | FECount | HIGH | LOW | AMPLitude | MEAN | RMS | RTIMe | FTIMe | PDCYcle | NDCYcle | PPWidth | NPWidth | CYCMean | CYCRms | STDDev | CYCStddev | TFRequency | TPERiode | DELay | PHASe | BWIDth | POVershoot | NOVershoot | TBFRequency | TBPeriod...
Page 353 ® Remote Control R&S RTM20xx Command Reference Rise or falling time of the left-most rising edge within the displayed section of the waveform of the selected channel. The reference level for this mesurement is set with R EFLevel: R ELative: MODE...
Page 354 ® Remote Control R&S RTM20xx Command Reference Suffix: <m> 1..4 Selects the measurement place. Parameters: <SignalSource> NONE | CH1 | CH2 | CH3 | CH4 | MA1 | MA2 | MA3 | MA4 | MA5 | RE1 | RE2 | RE3 | RE4 TRIGger | CH1 | CH2 | CH3 | CH4 | MA1 | MA2 | MA3 | MA4 | MA5 | RE1 | RE2 | RE3 | RE4 | TRIGger | D0..D15 | D70 | D158 Waveform to be measured, required for all measurement types...
Page 355 ® Remote Control R&S RTM20xx Command Reference <ReferenceSlope> POSitive | NEGative Slope of source 2 (second waveform) *RST: Firmware/Software: 03.400 MEASurement<m>:RESult[:ACTual]? [<MeasType>] Returns the result of the specified measurement type. Suffix: <m> 1..4 Selects the measurement place. Query parameters: <MeasType> FREQuency | PERiod | PEAK | UPEakvalue | LPEakvalue | PPCount | NPCount | RECount | FECount | HIGH | LOW | AMPLitude | MEAN | RMS | RTIMe | FTIMe | PDCYcle | NDCYcle |...
Page 356 ® Remote Control R&S RTM20xx Command Reference 15.2.8.4 Reference Level .....................341 REFLevel: R ELative: M ODE .....................341 REFLevel: R ELative: L OWer ....................341 REFLevel: R ELative: U PPer ....................342 REFLevel: R ELative: M IDDle REFLevel:RELative:MODE <RelativeMode> Sets the lower and upper reference levels for rise and fall time mesurements (cursor and automatic mesurements) as well as the middle reference level for phase and delay measurements.
Page 357 ® Remote Control R&S RTM20xx Command Reference REFLevel:RELative:MIDDle <MiddleLevel> Set the middle reference level used for phase and delay measurements, if R EFLevel: is set to USER. The level is defined as percentages of the high signal RELative: M ODE level.
Page 358 ® Remote Control R&S RTM20xx Command Reference Firmware/Software: FW 03.700 MEASurement<m>:STATistics:RESet Deletes the statistical results for the selected measurement, and starts a new statistical evaluation if the acquisition is running. The waveform count is set to 0 and all measure- ment values are set to NAN.
Page 359 ® Remote Control R&S RTM20xx Command Reference MEASurement<m>:RESult:NPEak? <NegativePeak> Returns the minimum measurement value of the current measurement series. Suffix: <m> 1..4 Selects the measurement place. Query parameters: <NegativePeak> Minimum measurement value Usage: Query only Firmware/Software: FW 03.700 MEASurement<m>:RESult:PPEak? <PositivePeak> Returns the maximum measurement value of the current measurement series.
Page 360: Mathematics
® Remote Control R&S RTM20xx Command Reference Return values: <ValueList> Comma-separated list of statistical values Usage: Query only MEASurement<m>:STATistics:VALue<n>? Returns one statistical value from the indicated buffer place. Note that valid buffered values can only be read if the acquisition is stopped. As long as the acquisition is running, the buffer contents is changing and the buffered values are not valid for reading.
Page 361 ® Remote Control R&S RTM20xx Command Reference Suffix: <m> 1..4 Selects the math waveform. Parameters: <State> ON | OFF *RST: CALCulate:MATH<m>:SCALe <Scale> Sets the vertical scale for the specified math waveform. In FFT mode, the command sets the vertical scale of the FFT window. The scale unit for FFT is set with ...
Page 362 ® Remote Control R&S RTM20xx Command Reference Parameters: <RemComplExpr> String parameter, consisting of the mathematical operation and the source(s) written in parenthesis. Example: CALC:MATH<2>:EXPR:DEF "CH1+CH2" Operation Expression string Comment Addition "ADD(CH1,CH2)" "CH1+CH2" is also possible Subtraction "SUB(CH1,CH2)" "CH1-CH2" is also possible Multiplication "MUL(CH1,CH2)"...
Page 363: Fft
® Remote Control R&S RTM20xx Command Reference Return values: <Data> List of values according to the format settings - voltages, or mag- nitudes of a spectrum. Usage: Query only CALCulate:MATH<m>:DATA:HEADer? Returns information on the math waveform. Table 15-15: Header data Position Meaning Example...
Page 364 ® Remote Control R&S RTM20xx Command Reference CALCulate:MATH<m>:FFT:WINDow:TYPE <WindowType> Window functions are multiplied with the input values and thus can improve the FFT display. Suffix: <m> 1..4 The numeric suffix is irrelevant. Parameters: <WindowType> RECTangular | HAMMing | HANNing | BLACkmanharris RECTangular The rectangular window multiplies all points by one.
Page 365 ® Remote Control R&S RTM20xx Command Reference Parameters: <Arithmetics> OFF | ENVelope | AVERage The FFT is performed without any additional weighting or post- processing of the acquired data. The new input data is acquired and displayed, and thus overwrites the previously saved and dis- played data.
Page 366 ® Remote Control R&S RTM20xx Command Reference Parameters: <Magnitude Scale> LINear | DBM | DBV LINear linear scaling; displays the RMS value of the voltage. logarithmic scaling; related to 1 mW logarithmic scaling; related to 1 Veff *RST: Example: CALC:MATH:FFT:MAGN:SCAL DBM CALC:MATH:SCAL 20 Set the Y-scale of the FFT window to 20 dBm.
Page 367 ® Remote Control R&S RTM20xx Command Reference Example: CALC:MATH:FFT:BAND:RAT 32768 Sets the number of points to 65536. CALCulate:MATH<m>:FFT:BANDwidth[:RESolution][:VALue] <ResolutionBW> Defines the resolution bandwidth - the minimum frequency step at which the individual components of a spectrum can be distinguished Suffix: <m>...
Page 368 ® Remote Control R&S RTM20xx Command Reference Suffix: <m> 1..4 The numeric suffix is irrelevant. Parameters: <FreqSpan> Range: Depends on various other settings, mainly on time base and span/RBW ratio. Increment: Only 1 | 2 | 5 in first digit Default unit: Hz CALCulate:MATH<m>:FFT:STARt <StartFreq>...
Page 369: Masks
® Remote Control R&S RTM20xx Command Reference CALCulate:MATH<m>:FFT:TIME:POSition Defines the position of the time base extract in the Y(t)-window for which the FFT is calculated. Parameters: <WindowPosition> Range: depends on the time base and the width of the FFT time base extract Default unit: s Firmware/Software: FW 03.800 CALCulate:MATH<m>:FFT:SRATe?
Page 370 ® Remote Control R&S RTM20xx Command Reference MASK:STATe <State> Turns the mask test mode on or off. When turning off, any temporarily stored new masks are deleted. Parameters: <State> ON | OFF *RST: MASK:TEST <Test> Starts, finishes or interrupts a mask test. Parameters: <Test>...
Page 371 ® Remote Control R&S RTM20xx Command Reference Usage: Event MASK:YPOSition <Yposition> Moves the mask vertically within the display. Parameters: <Yposition> Mask offset from the vertical center Range: -200 to 200 Increment: 0,02 *RST: Default unit: div MASK:YSCale <Yscale> Changes the vertical scaling to stretch or compress the mask in y-direction. Parameters: <Yscale>...
Page 372 ® Remote Control R&S RTM20xx Command Reference MASK:COUNt? Returns the number of tested acquisitions. Return values: <TotalCount> Total number of tested acquisitions Usage: Query only MASK:VCOunt? Returns the number of acquistions that hit the mask. Return values: <ViolationCount> Acquisition count Usage: Query only MASK:RESet:COUNter...
Page 373: Search
® Remote Control R&S RTM20xx Command Reference Parameters: <EventMode> OFF | EACH | SINGle | CYCLic No action is executed. EACH The selected action is executed on each violation of the mask. SINGle The selected action is executed once after the n-th violation. CYCLic The selected action is executed repeatedly after each n-th viola- tion.
Page 374 ® Remote Control R&S RTM20xx Command Reference 15.2.12.1 General Search Configuration ......................359 SEARch: S TATe ......................359 SEARch: C ONDition ......................361 SEARch: S OURce ....................361 SEARch: G ATE: M ODE ..................361 SEARch: G ATE: A BSolute: S TART .
Page 375 ® Remote Control R&S RTM20xx Command Reference Parameters: <SearchCondition> EDGE | WIDTh | PEAK | RUNT | RTIMe | DATatoclock | PATTern | PROTocol EDGE An edge search result is found when the waveform passes the given level in the specified direction. WIDTH A width search finds pulses with an exact pulse width, or pulses shorter or longer than a given time, or pulses inside or outside the...
Page 376 ® Remote Control R&S RTM20xx Command Reference SEARch:SOURce <SearchSource> Selects the waveform to be analyzed. One of the active channel, math, and reference waveforms can be searched. Parameters: <SearchSource> CH1 | CH2 | CH3 | CH4 | MA1 | MA2 | MA3 | MA4 | RE1 | RE2 | RE3 | RE4 *RST: ...
Page 377 ® Remote Control R&S RTM20xx Command Reference 15.2.12.2 Edge Search Configuration ..................362 SEARch: T RIGger: E DGE: S LOPe ..................362 SEARch: T RIGger: E DGE: L EVel ................362 SEARch: T RIGger: E DGE: L EVel: D ELTa SEARch:TRIGger:EDGE:SLOPe <Slope>...
Page 378 ® Remote Control R&S RTM20xx Command Reference Parameters: <Polarity> POSitive | NEGative *RST: Example: c hapter 15.3.2.1, "Searching for a Pulse of Specified Width", on page 460 Firmware/Software: FW 03.400 SEARch:TRIGger:WIDTh:LEVel <Level> Sets the voltage level on which the pulse width is measured. Parameters: <Level>...
Page 379 ® Remote Control R&S RTM20xx Command Reference Firmware/Software: FW 03.400 SEARch:TRIGger:WIDTh:WIDTh <Width> Sets the reference pulse width, the nominal value for comparisons. Parameters: <Width> Default unit: s Example: c hapter 15.3.2.1, "Searching for a Pulse of Specified Width", on page 460 Firmware/Software: FW 03.400 SEARch:TRIGger:WIDTh:DELTa <DeltaWidth>...
Page 380 ® Remote Control R&S RTM20xx Command Reference 15.2.12.5 Rise/Fall Time Search Configuration .................365 SEARch: T RIGger: R ISetime: S LOPe ................365 SEARch: T RIGger: L EVel: R ISetime: L OWer ................365 SEARch: T RIGger: L EVel: R ISetime: U PPer .
Page 381 ® Remote Control R&S RTM20xx Command Reference Parameters: <Range> LONGer | SHORter | WITHin | OUTSide LONGer Finds rise/fall times longer than the given time. SHORter Finds rise/fall times shorter than the given time. WITHin Finds rise/fall times inside the range time ± Δt. OUTSide Finds rise/fall times outside the range time ±...
Page 382 ® Remote Control R&S RTM20xx Command Reference SEARch:TRIGger:RUNT:POLarity <Polarity> Indicates the polarity of a the runt to be searched for. Parameters: <Polarity> POSitive | NEGative | EITHer *RST: Firmware/Software: FW 03.700 SEARch:TRIGger:LEVel:RUNT:LOWer <LowerLevel> Sets the lower voltage threshold for runt detection. A positive runt crosses the lower level twice without crossing the upper level.
Page 383 ® Remote Control R&S RTM20xx Command Reference Firmware/Software: FW 03.700 SEARch:TRIGger:RUNT:WIDTh <Width> Sets the reference runt pulse width, the nominal value for comparisons. Parameters: <Width> Range: Depends on various settings, mainly time base and sample rate *RST: 200e-6 Default unit: s Firmware/Software: FW 03.700 SEARch:TRIGger:RUNT:DELTa <DeltaWidth>...
Page 384 ® Remote Control R&S RTM20xx Command Reference SEARch:TRIGger:DATatoclock:CLEVel <ClockLevel> Sets the voltage level for the clock signal. Clock level and clock edge define the reference point for setup and hold time. Parameters: <ClockLevel> Range: depends on vertical scale Firmware/Software: FW 03.800 SEARch:TRIGger:DATatoclock:DLEVel <DataLevel>...
Page 385 ® Remote Control R&S RTM20xx Command Reference Firmware/Software: FW 03.800 SEARch:TRIGger:DATatoclock:STIMe <SetupTime> Sets the minimum time before the clock edge while the data signal must stay steady above or below the data level. The setup time can be negative. In this case, the setup interval starts after the clock edge, and the hold time must be positive and longer than the absolute value of the setup time.
Page 386 ® Remote Control R&S RTM20xx Command Reference Parameters: <Function> AND | OR | NAND | NOR The required states of all channels must appear in the input signal at the same time. At least one of the channels must have the required state. NAND "Not and"...
Page 387 ® Remote Control R&S RTM20xx Command Reference To set a range Δt, use on page 372 S EARch: T RIGger: P ATTern: W IDTh: D ELTa Parameters: <Range> WITHin | OUTSide | LONGer | SHORter WITHin Finds patterns steady for a time range width ± Δt. OUTSide Finds patterns outside a time range width ±...
Page 388 ® Remote Control R&S RTM20xx Command Reference SEARch:RESult:ALL? Returns all result values of the search. Return values: <AllResults> List of results items seperated by comma For each result, six values are returned: 1. Result number as indicated in the search results table 2.
Page 389: Protocol Analysis
® Remote Control R&S RTM20xx Command Reference SEARch:RCOunt? Returns the number of search results. Return values: <ResultCount> *RST: Example: c hapter 15.3.2.1, "Searching for a Pulse of Specified Width", on page 460 Usage: Query only Firmware/Software: FW 03.400 15.2.13 Protocol Analysis ●...
Page 390 ® Remote Control R&S RTM20xx Command Reference BUS<b>:TYPE <Type> Defines the bus or interface type for analysis. For most types, a special option to the instrument is required. Suffix: <b> 1..4 Selects the bus. Note: SPI/SSPI and UART protocols occupy two bus lines. Parameters: <Type>...
Page 391 ® Remote Control R&S RTM20xx Command Reference BUS<b>:POSition <Position> Sets the vertical position of the decoded bus signal in divisions on the sreen. Suffix: <b> 1..4 Selects the bus. Note: SPI/SSPI and UART protocols occupy two bus lines. Parameters: <Position> Range: 4 to -4 Increment: 0.02...
Page 392 ® Remote Control R&S RTM20xx Command Reference Example: BUS:LIST:SAVE "/USB_FRONT/MYTABLE.CSV" Saves the frame table data to the MYTABLE.CSV file on a USB flash device connected to the front panel. Usage: Setting only 15.2.13.2 The Serial Peripheral Interface SPI is used for communication with slow peripheral devi- ces, in particular, for transmission of data streams.
Page 393 ® Remote Control R&S RTM20xx Command Reference Parameters: <Polarity> POSitive | NEGative POSitive = high active NEGative = low active *RST: POSitive BUS<b>:SPI:CLOCk:SOURce <Source> Selects the input channel of the clock line. Suffix: <b> 1..4 Selects the bus. Note: SPI/SSPI and UART protocols occupy two bus lines. Parameters: <Source>...
Page 394 ® Remote Control R&S RTM20xx Command Reference BUS<b>:SPI:DATA:POLarity <Polarity> Selects whether transmitted data is high active (high = 1) or low active (low = 1) on the data line. Suffix: <b> 1..4 Selects the bus. Note: SPI/SSPI and UART protocols occupy two bus lines. Parameters: <Polarity>...
Page 395 ® Remote Control R&S RTM20xx Command Reference Suffix: <m> Selects the input channel. The number of channels depends on the instrument. Usage: Event SPI - Trigger ....................380 TRIGger: A : S PI: M ODE ....................380 TRIGger: A : S PI: P ATTern .
Page 396 ® Remote Control R&S RTM20xx Command Reference TRIGger:A:SPI:PLENgth <PatternLength> Returns the number of bits in the previously defined bit pattern ( T RIGger: A : S PI: ) . The command can also be used to shorten a previously defined bit pattern. PATTern...
Page 397 ® Remote Control R&S RTM20xx Command Reference Usage: Query only BUS<b>:SPI:FRAME<n>:STATus? Returns the overall state of the specified frame. Suffix: <b> 1..4 Selects the bus. Note: SPI/SSPI and UART protocols occupy two bus lines. <n> Selects the frame. Return values: <Status>...
Page 398 ® Remote Control R&S RTM20xx Command Reference <n> Selects the frame. Return values: <StopTime> Range: depends on sample rate, record length, and time base Increment: depends on the time base Default unit: s Usage: Query only BUS<b>:SPI:FRAME<n>:DATA:MOSI? Returns the data words of the specified frame of the MOSI line. Suffix: <b>...
Page 399 ® Remote Control R&S RTM20xx Command Reference Suffix: <b> 1..4 Selects the bus. Note: SPI/SSPI and UART protocols occupy two bus lines. <n> Selects the frame. Return values: <WordCount> Number of words Usage: Query only BUS<b>:SPI:FRAME<n>:WORD<o>:STARt? Returns the start time of the specified data word. Suffix: <b>...
Page 400 ® Remote Control R&S RTM20xx Command Reference Return values: <StopTime> Range: depends on sample rate, record length, and time base Increment: depends on the time base Default unit: s Usage: Query only BUS<b>:SPI:FRAME<n>:WORD<o>:MOSI? Returns the data value of the specified word on the MOSI line. Use this command if only one line is defined.
Page 401 ® Remote Control R&S RTM20xx Command Reference 15.2.13.3 SSPI ..................386 BUS<b>: S SPI: C LOCk: S OURce ..................386 BUS<b>: S SPI: C LOCk: P OLarity ..................386 BUS<b>: S SPI: D ATA: S OURce ..................387 BUS<b>: S SPI: D ATA: P OLarity .
Page 402 ® Remote Control R&S RTM20xx Command Reference Parameters: <Source> CH1 | CH2 | CH3 | CH4 | D0..D15 CH3 and CH4 are only available with 4-channel R&S RTM oscil- loscopes. *RST: BUS<b>:SSPI:DATA:POLarity <Polarity> Selects whether transmitted data is high active (high = 1) or low active (low = 1) on the data line.
Page 403 ® Remote Control R&S RTM20xx Command Reference Parameters: <BitOrder> MSBFirst | LSBFirst *RST: MSBFirst BUS<b>:SSPI:SSIZe <SymbolSize> Sets the word length, the number of bits in a message. Suffix: <b> 1..4 Selects the bus. Note: SPI/SSPI and UART protocols occupy two bus lines. Parameters: <SymbolSize>...
Page 404 ® Remote Control R&S RTM20xx Command Reference BUS<b>:I2C:CLOCk:SOURce <Source> Sets the input channel to which the clock line is connected. Suffix: <b> 1..4 Selects the bus. Parameters: <Source> CH1 | CH2 | CH3 | CH4 | D0..D15 CH3 and CH4 are only available with 4-channel R&S RTM oscil- loscopes.
Page 405 ® Remote Control R&S RTM20xx Command Reference TRIGger:A:I2C:MODE <Mode> Specifies the trigger mode for I²C. Parameters: <Mode> STARt | RESTart | STOP | MACKnowledge | PATTern STARt Start of the message. The start condition is a falling slope on SDA while SCL is high.
Page 406 ® Remote Control R&S RTM20xx Command Reference TRIGger:A:I2C:ADDRess <AddressString> Sets the address of the slave device. The address can have 7 bits or 10 bits. Parameters: <AddressString> String with max. 7 or 10 characters, depending on the address length. Characters 0, 1, and X are allowed, but X cannot be assigned to a specified bit.
Page 407 ® Remote Control R&S RTM20xx Command Reference TRIGger:A:I2C:POFFset <PatternByteOffset> Sets the number of bytes before the first byte of interest, relating to the end of the address bytes. Parameters: <PatternByteOffset> Number of ignored bytes Range: 0 to 4095 Increment: 1 *RST: I²C - Decode Results .
Page 408 ® Remote Control R&S RTM20xx Command Reference Suffix: <b> 1..4 Selects the bus. <n> Selects the frame. Return values: <DataWordsInFrame>Comma-separated list of decimal values of the data bytes. BUS:I2C:FRAM2:DATA? Example: returns four data bytes: -> 69,158,174,161 Usage: Query only BUS<b>:I2C:FRAMe<n>:STATus? Returns the overall state of the frame.
Page 409 ® Remote Control R&S RTM20xx Command Reference BUS<b>:I2C:FRAMe<n>:STOP? Returns the end time of the specified frame. Suffix: <b> 1..4 Selects the bus. <n> Selects the frame. Return values: <EndTime> Range: depends on sample rate, record length, and time base Increment: depends on the time base Default unit: s Usage: Query only...
Page 410 ® Remote Control R&S RTM20xx Command Reference BUS<b>:I2C:FRAMe<n>:ACOMplete? Returns the state of the address. Suffix: <b> 1..4 Selects the bus. <n> Selects the frame. Return values: <AddressComplete> ON | OFF Address was received completely. Usage: Query only BUS<b>:I2C:FRAMe<n>:ADBStart? Returns the start time of the address acknowledge bit. Suffix: <b>...
Page 411 ® Remote Control R&S RTM20xx Command Reference BUS<b>:I2C:FRAMe<n>:ADEVice? Returns the decimal address value of the indicated frame without R/W bit. Suffix: <b> 1..4 Selects the bus. <n> Selects the frame. Return values: <SlaveAddress> Decimal value Range: 0 to 1023 Increment: 1 Usage: Query only BUS<b>:I2C:FRAMe<n>:AMODe?
Page 412 ® Remote Control R&S RTM20xx Command Reference BUS<b>:I2C:FRAMe<n>:BCOunt? Returns the number of data bytes in the specified frame. Suffix: <b> 1..4 Selects the bus. <n> Selects the frame. Return values: <ByteCount im Number of words (bytes) Frame> Example: BUS:I2C:FRAM2:BCO? -> 4 Usage: Query only BUS<b>:I2C:FRAMe<n>:BYTE<o>:ACCess?
Page 413 ® Remote Control R&S RTM20xx Command Reference Return values: <AckStartTime> Range: depends on sample rate, record length, and time base Increment: depends on the time base Default unit: s Usage: Query only BUS<b>:I2C:FRAMe<n>:BYTE<o>:COMPlete? Returns the state of the byte. Suffix: <b>...
Page 414 ® Remote Control R&S RTM20xx Command Reference Suffix: <b> 1..4 Selects the bus. <n> Selects the frame. <o> Selects the byte number. Return values: <ByteValue> Decimal value Range: 0 to 255 Increment: 1 BUS:I2C:FRAM2:BYTE2:VAL? Example: -> 158 Usage: Query only 15.2.13.5 UART The Universal Asynchronous Receiver/Transmitter (UART) converts a word of data into...
Page 415 ® Remote Control R&S RTM20xx Command Reference Parameters: <Source> CH1 | CH2 | CH3 | CH4 | D0..D15 CH3 and CH4 are only available with 4-channel R&S RTM oscil- loscopes. *RST: BUS<b>:UART:POLarity <IdleState> Defines the logic levels of the bus. The idle state corresponds to a logic 1, and the start bit to a logic 0.
Page 416 ® Remote Control R&S RTM20xx Command Reference Parameters: <SymbolSize> Range: 5 to 9 Increment: 1 *RST: Default unit: Bit BUS<b>:UART:PARity <Parity> Defines the optional parity bit that is used for error detection. Suffix: <b> 1..4 Selects the bus. Note: SPI/SSPI and UART protocols occupy two bus lines. Parameters: <Parity>...
Page 417 ® Remote Control R&S RTM20xx Command Reference BUS<b>:UART:BITime <BurstIdleTime> Sets the minimal time between two data frames (packets), that is, between the last stop bit and the start bit of the next frame. Suffix: <b> 1..4 Selects the bus. Note: SPI/SSPI and UART protocols occupy two bus lines. Parameters: <BurstIdleTime>...
Page 418 ® Remote Control R&S RTM20xx Command Reference Parameters: <Mode> BSTart | SBIT | NTHSymbol | SYMBol | PATTern | PRERror | FERRor | BREak BSTart Burst start. Sets the trigger to the begin of a data frame. The frame start is the first start bit after the idle time. SBIT Start bit.
Page 419 ® Remote Control R&S RTM20xx Command Reference TRIGger:A:UART:POFFset <PatternByteOffset> Sets the number of symbols before the first symbol of the pattern. Parameters: <PatternByteOffset> Number of ignored symbols Range: 0 to 4095 Increment: 1 *RST: UART - Decode Results ...................404 BUS<b>:...
Page 420 ® Remote Control R&S RTM20xx Command Reference Usage: Query only BUS<b>:UART:RX:FRAMe<n>:WORD<o>:STARt? Suffix: <b> 1..4 <n> <o> Return values: <StartTime> Usage: Query only BUS<b>:UART:RX:FRAMe<n>:WORD<o>:STOP? Suffix: <b> 1..4 <n> <o> Return values: <StopTime> Usage: Query only BUS<b>:UART:RX:FRAMe<n>:WORD<o>:VALue? Suffix: <b> 1..4 <n> <o> Return values: <Value>...
Page 421 ® Remote Control R&S RTM20xx Command Reference ● CAN - Configuration....................406 ● CAN - Trigger......................407 ● CAN - Decode Results..................411 ● CAN - Search......................417 CAN - Configuration ..................406 BUS<b>: C AN: D ATA: S OURce .......................406 BUS<b>: C AN: T YPE .
Page 422 ® Remote Control R&S RTM20xx Command Reference Parameters: <SamplePoint> Range: 10 to 90 Increment: 1 *RST: Default unit: % BUS<b>:CAN:BITRate <BitRate> Sets the number of transmitted bits per second. Suffix: <b> 1..4 Selects the bus. Parameters: <BitRate> Range: 100 to 5,04E06, depends on instrument type, ADC clock rate Increment: depends on the bit rate value *RST:...
Page 423 ® Remote Control R&S RTM20xx Command Reference Parameters: <TriggerType> STOFrame | EOFrame | ID | IDDT | FTYPe | ERRCondition STOFrame Start of frame EOFrame End of frame Sets the trigger to a specific message identifier or an identifier range. Specify the identifier with ...
Page 424 ® Remote Control R&S RTM20xx Command Reference TRIGger:A:CAN:ICONdition <IdentifierCondition> Sets the comparison condition: If the pattern contains at least one X (don't care), you can trigger on values equal or not equal to the specified value. If the pattern contains only 0 and 1, you can also trigger on a range greater than or lower than the specified value.
Page 425 ® Remote Control R&S RTM20xx Command Reference TRIGger:A:CAN:DATA <Data> Defines the data pattern. The number of bytes in the data pattern is defined with TRIGger: A : C AN: D LC The command is relevant if is set to IDDT. T RIGger:...
Page 426 ® Remote Control R&S RTM20xx Command Reference Parameters: <FormError> ON | OFF *RST: CAN - Decode Results ....................411 BUS<b>: C AN: F COunt? ..................411 BUS<b>: C AN: F RAMe<n>: T YPE? ................412 BUS<b>: C AN: F RAMe<n>: S TATus? .
Page 427 ® Remote Control R&S RTM20xx Command Reference Return values: <FrameType> DATA | REMote | ERR | OVLD Data, remote, error or overload frame Usage: Query only BUS<b>:CAN:FRAMe<n>:STATus? Returns the overall state of the specified frame. Suffix: <b> 1..4 Selects the bus. <n>...
Page 428 ® Remote Control R&S RTM20xx Command Reference BUS<b>:CAN:FRAMe<n>:STOP? Returns the end time of the specified frame. Suffix: <b> 1..4 Selects the bus. <n> Selects the frame (1...n). Return values: <StopTime> Range: depends on sample rate, record length, and time base Increment: depends on the time base Default unit: s Usage:...
Page 429 ® Remote Control R&S RTM20xx Command Reference BUS<b>:CAN:FRAMe<n>:ACKValue? Returns the value of the acknowledge field. Suffix: <b> 1..4 Selects the bus. <n> Selects the frame (1...n). Return values: <AcknowledgeValue> Decimal value Usage: Query only BUS<b>:CAN:FRAMe<n>:CSSTate? Returns the state of the checksum. Suffix: <b>...
Page 430 ® Remote Control R&S RTM20xx Command Reference Suffix: <b> 1..4 Selects the bus. <n> Selects the frame (1...n). Return values: <DLCState> OK | UNDF UNDF: Undefined Usage: Query only BUS<b>:CAN:FRAMe<n>:DLCValue? Returns the number of data bytes in the specified frame. Suffix: <b>...
Page 431 ® Remote Control R&S RTM20xx Command Reference <n> Selects the frame (1...n). Return values: <IdentifierType> ANY | B11 | B29 No length specified, for example, for triggering on data only. Usage: Query only BUS<b>:CAN:FRAMe<n>:IDValue? Returns the decimal address value of the specified frame. Suffix: <b>...
Page 432 ® Remote Control R&S RTM20xx Command Reference Return values: <ByteCount> Number of words (bytes) Usage: Query only BUS<b>:CAN:FRAMe<n>:BYTE<o>:STATe? Returns the state of the specified data byte. Suffix: <b> 1..4 Selects the bus. <n> Selects the frame (1...n). <o> Selects the byte number (1...n). Return values: <ByteStatus>...
Page 433 ® Remote Control R&S RTM20xx Command Reference ................420 SEARch: P ROTocol: C AN: I CONdition ..................420 SEARch: P ROTocol: C AN: I DENtifier ..................421 SEARch: P ROTocol: C AN: D LENgth ................421 SEARch: P ROTocol: C AN: D CONdition .
Page 434 ® Remote Control R&S RTM20xx Command Reference Parameters: <Frame> SOF | EOF | OVERload | ERRor | DTA11 | DTA29 | REM11 | REM29 SOF: start of frame EOF: end of frame OVERload: overload frame ERRor: error frame DTA11: data frame with 11bit identifier DTA29: data frame with 29bit identifier REM11: remote frame with 11bit identifier REM29: remote frame with 29bit identifier...
Page 435 ® Remote Control R&S RTM20xx Command Reference SEARch:PROTocol:CAN:FORMerror <FormError> Searches for form errors. A form error occurs when a fixed-form bit field contains one or more illegal bits. The command is relevant if is set to ERRor or S EARch: P ROTocol: C AN: C ONDition IDERror.
Page 436 ® Remote Control R&S RTM20xx Command Reference The command is relevant if is set to S EARch: P ROTocol: C AN: C ONDition IDENtifier, IDData, or IDERror. Parameters: <Identifier> String containing binary pattern with max. 29 bit. Characters 0, 1, and X are allowed.
Page 437 ® Remote Control R&S RTM20xx Command Reference ● LIN - Configuration....................422 ● LIN - Trigger......................423 ● LIN - Decode Results....................426 ● LIN - Search......................431 LIN - Configuration ...................422 BUS<b>: L IN: D ATA: S OURce .....................422 BUS<b>: L IN: P OLarity .
Page 438 ® Remote Control R&S RTM20xx Command Reference Parameters: <Standard> V1X | V2X | J2602 | AUTO *RST: BUS<b>:LIN:BITRate <BitRate> Sets the number of transmitted bits per second. Suffix: <b> 1..4 Selects the bus. Parameters: <BitRate> *RST: 9,60E+003 Default unit: Bit/s CHANnel<m>:THReshold:FINDlevel Executes the analysis of all analog channels that are configured for the selected bus and sets the threshold for digitization of analog signals for each channel.
Page 439 ® Remote Control R&S RTM20xx Command Reference Parameters: <TriggerType> SYNC | WKFRame | ID | IDDT | ERRCondition SYNC Start of frame, triggers on the stop bit of the sync field. WKFRame Triggers after a wakeup frame. Sets the trigger to a specific identifier or an identifier range. Set the identifier with ...
Page 440 ® Remote Control R&S RTM20xx Command Reference The command is relevant if is set to ERRCondition. T RIGger: A : L IN: T YPE Parameters: <SyncError> ON | OFF *RST: TRIGger:A:LIN:ICONdition <IdentifierCondition> Sets the comparison condition for the identifier: If the pattern contains at least one X (don't care), you can trigger on values equal or not equal to the specified value.
Page 441 ® Remote Control R&S RTM20xx Command Reference Parameters: <DataCondition> EQUal | NEQual | GTHan | LTHan *RST: TRIGger:A:LIN:DLENgth <DataLength> Defines the length of the data pattern - the number of bytes in the pattern. The command is relevant if is set to IDDT.
Page 442 ® Remote Control R&S RTM20xx Command Reference Suffix: <b> 1..4 Selects the bus. <n> Selects the frame (1...n). Return values: <FrameData> Comma-separated list of decimal values of the data bytes. Usage: Query only BUS<b>:LIN:FRAMe<n>:STATus? Suffix: <b> 1..4 Selects the bus. <n>...
Page 443 ® Remote Control R&S RTM20xx Command Reference <n> Selects the frame (1...n). Return values: <StopTime> Range: depends on sample rate, record length, and time base Increment: depends on the time base Default unit: s Usage: Query only BUS<b>:LIN:FRAMe<n>:CSSTate? Returns the checksum state of the specified frame. Suffix: <b>...
Page 444 ® Remote Control R&S RTM20xx Command Reference <n> Selects the frame (1...n). Return values: <IdentifierParityValue>Decimal value Usage: Query only BUS<b>:LIN:FRAMe<n>:IDSTate? Returns the identifier state of the selected frame. Suffix: <b> 1..4 Selects the bus. <n> Selects the frame (1...n). Return values: <IdentifierState>...
Page 445 ® Remote Control R&S RTM20xx Command Reference Return values: <SyncFieldState> OK | ERR | UNDF ERR: error UNDF: undefined Usage: Query only BUS<b>:LIN:FRAMe<n>:SYValue? Returns the value of the synchronization field. Suffix: <b> 1..4 Selects the bus. <n> Selects the frame (1...n). Return values: <SyncFieldValue>...
Page 446 ® Remote Control R&S RTM20xx Command Reference Usage: Query only BUS<b>:LIN:FRAMe<n>:BYTE<o>:STATe? Returns the state of the specified data byte. Suffix: <b> 1..4 Selects the bus. <n> Selects the frame (1...n). <o> Selects the byte number (1...n). Return values: <ByteStatus> OK | INS | UART The byte is not completely contained in the acquisition UART At least one UART error occured.
Page 447 ® Remote Control R&S RTM20xx Command Reference ..................434 SEARch: P ROTocol: L IN: D LENgth ................434 SEARch: P ROTocol: L IN: D CONdition ..................434 SEARch: P ROTocol: L IN: D ATA SEARch:PROTocol:LIN:CONDition <SearchCondition> Sets the event or combination of events to be searched for. Depending on the selected event, further settings are required.
Page 448 ® Remote Control R&S RTM20xx Command Reference SEARch:PROTocol:LIN:IPERror <IdParityError> Searches for parity errors. The command is relevant if is set to ERRor or S EARch: P ROTocol: L IN: C ONDition IDERror. Parameters: <IdParityError> ON | OFF *RST: SEARch:PROTocol:LIN:CHKSerror <ChecksumError> Searches for checksum errors.
Page 449: Mixed Signal Option (Mso, R&S Rtm-B1)
® Remote Control R&S RTM20xx Command Reference The command is relevant if is set to S EARch: P ROTocol: L IN: C ONDition IDENtifier, IDData or IDERror. Parameters: <Identifier> String containing binary pattern. Characters 0, 1, and X are allowed.
Page 450 ® Remote Control R&S RTM20xx Command Reference 15.2.14.1 Digital Channels .......................435 DIGital<m>: D ISPlay ....................435 DIGital<m>: T ECHnology ....................435 DIGital<m>: T HReshold ....................436 DIGital<m>: T HCoupling ....................436 DIGital<m>: H ysteresis ......................436 DIGital<m>: L ABel .
Page 451 ® Remote Control R&S RTM20xx Command Reference Suffix: <m> 0..15 Number of the digital channel. Channel groups: 0..3; 4..7; 8..11; 12..15 Parameters: <ThresholdLevel> *RST: Default unit: V DIGital<m>:THCoupling Applies the last defined threshold and hysteresis values to all digital channels. Suffix: <m>...
Page 452 ® Remote Control R&S RTM20xx Command Reference Suffix: <m> 0..15 Number of the digital channel Parameters: <Position> Vertical position in divisions Default unit: div DIGital<m>:LABel:STATe Displays or hides the label of the indicated digital channel. Suffix: <m> 0..15 Number of the digital channel Parameters: <State>...
Page 453 ® Remote Control R&S RTM20xx Command Reference Parameters: <BusWidth> Maximum number is the number of input channels. Range: 1 to 16 Increment: 1 *RST: Default unit: Bit Parallel Clocked Bus - Configuration .....................438 BUS<b>: C PARallel: W IDTh .................438 BUS<b>:...
Page 454 ® Remote Control R&S RTM20xx Command Reference Parameters: <Polarity> POSitive | NEGative POSitive = high active NEGative = low active Parallel Buses - Decode Results The commands to query results of decoded parallel clocked and unclocked buses are similar and described together in this chapter.. .
Page 455 ® Remote Control R&S RTM20xx Command Reference BUS<b>:PARallel:FRAMe<n>:STATe? BUS<b>:CPARallel:FRAMe<n>:STATe? Returns the overall state of the specified frame. Suffix: <b> 1..4 Selects the bus. Note: SPI/SSPI and UART protocols occupy two bus lines. <n> Selects the frame. Return values: <FrameStatus> OK | ERRor | INSufficient Usage: Query only BUS<b>:PARallel:FRAMe<n>:STARt?
Page 456: Data And File Management
® Remote Control R&S RTM20xx Command Reference 15.2.15 Data and File Management This chapter describes commands on how to print and save screenshots, and how to manage measurement settings and data.. ● Screenshots......................441 ● Saving and Loading Data: MMEMory Commands..........443 15.2.15.1 Screenshots This chapter describes remote commands used to print and save screenshots.
Page 457 ® Remote Control R&S RTM20xx Command Reference HCOPy[:IMMediate] Prints an image of the display to the printer or saves an image to a file or the clipboard, depending on the setting. H COPy: D ESTination Before starting the printout, make sure that: ●...
Page 458 ® Remote Control R&S RTM20xx Command Reference Parameters: <ColorScheme> COLor | GRAYscale | INVerted INVerted inverts the colors of the output, i.e. a dark waveform is printed on a white background. *RST: COLor Example: c hapter 15.3.3.1, "Saving Screenshots to File", on page 461 SYSTem:COMMunicate:PRINter:SELect <PrinterName>...
Page 459 ® Remote Control R&S RTM20xx Command Reference The R&S RTM has three storage devices indicated as drives: ● /INT: internal storage with default directories for each data type ● /USB_FRONT: USB connector on the front panel ● /USB_REAR: USB connector on the rear panel Common computer and network drives like C:, D:, \\server\share are not available.
Page 460 ® Remote Control R&S RTM20xx Command Reference Example: MMEM:MSIS '/USB_FRONT' Sets the USB flash drive connected to the front panel as storage device to be used. MMEMory:CDIRectory [<DirectoryName>] Specifies the current directory for file access. Setting parameters: <DirectoryName> String parameter to specify the directory, including the storage device.
Page 461 ® Remote Control R&S RTM20xx Command Reference Usage: Setting only MMEMory:DCATalog? <PathName> Returns the subdirectories of the specified directory. The result corresponds to the num- ber of strings returned by the MMEMory:DCATalog:LENgth? command. Query parameters: <PathName> String parameter Specifies the directory. Return values: <FileEntry>...
Page 462 ® Remote Control R&S RTM20xx Command Reference see Example: M MEMory: D CATalog? Usage: Query only MMEMory:CATalog? <PathName>[,<Format>] Returns the a list of files contained in the specified directory. The result corresponds to the number of files returned by the MMEMory:CATalog:LENgth? command. Query parameters: <PathName>...
Page 463 ® Remote Control R&S RTM20xx Command Reference Return values: <Count> Number of files. see Example: M MEMory: C ATalog? Usage: Query only MMEMory:COPY <FileSource>,<FileDestination> Copies data to another directory on the same or different storage device. The file name can be changed, too.
Page 464 ® Remote Control R&S RTM20xx Command Reference Example: c hapter 15.3.3.2, "Saving, Copying, and Loading Setup Data", on page 461 Usage: Setting only MMEMory:DATA <FileName>,<Data> Writes data to the specified file in the current directory , or reads M MEMory:...
Page 465: General Instrument Setup
® Remote Control R&S RTM20xx Command Reference Setting parameters: <StateNumber> Range: 1 to 1 Increment: 0 *RST: <FileName> String parameter File name, with or without file extension Example: MMEM:CDIR "/USB_FRONT/DATA"' MMEM:LOAD:STAT 1,"MORNING" Example: c hapter 15.3.3.2, "Saving, Copying, and Loading Setup Data", on page 461 Usage:...
Page 466 ® Remote Control R&S RTM20xx Command Reference Parameters: <OutputMode> OFF | TRIGger | MASK *RST: TRIGger:OUT:PLENgth <PulseLength> Defines the pulse width of the trigger out pulse. Parameters: <PulseLength> *RST: 1E-6 Default unit: s TRIGger:OUT:POLarity <Polarity> Sets the polarity of the trigger out pulse. Parameters: <Polarity>...
Page 467 ® Remote Control R&S RTM20xx Command Reference Parameters: <Hour> Range: 0 to 23 Increment: 1 Default unit: h <Minute> Range: 0 to 59 Increment: 1 Default unit: min <Second> Range: 0 to 59 Increment: 1 Default unit: s Usage: SCPI confirmed SYSTem:BEEPer:CONTrol:STATe Enables or diables a sound for general control events, e.g.
Page 468: Status Reporting
® Remote Control R&S RTM20xx Command Reference SYSTem:ERRor:[NEXT]? Queries the error/event queue for the oldest item and removes it from the queue. The response consists of an error number and a short description of the error. Positive error numbers are instrument-dependent. Negative error numbers are reserved by the SCPI standard.
Page 469 ® Remote Control R&S RTM20xx Command Reference The following commands are available: ..................454 STATus: O PERation: C ONDition? ...................454 STATus: O PERation: E NABle ..................454 STATus: O PERation: N TRansition ..................454 STATus: O PERation: P TRansition .
Page 470 ® Remote Control R&S RTM20xx Command Reference 15.2.17.2 STATus:QUEStionable Registers The commands of the STATus:QUEStionable subsystem control the status reporting structures of the STATus:QUEStionable registers: Fig. 15-4: Structure of the STATus:QUEStionable register See also: ● c hapter 15.1.6.1, "Structure of a SCPI Status Register", on page 262 ●...
Page 471 ® Remote Control R&S RTM20xx Command Reference ...............456 STATus: Q UEStionable: M ASK: C ONDition? ..................456 STATus: Q UEStionable: E NABle ..............456 STATus: Q UEStionable: C OVerload: E NABle ................456 STATus: Q UEStionable: L IMit: E NABle .
Page 472 ® Remote Control R&S RTM20xx Command Reference Parameters: <Enable> Bit mask in decimal representation Range: 1 to 65535 Increment: 1 Example: STATus:QUEStionable:MASK:ENABle 24 Set bits no. 3 and 4 of the STATus:QUEStionable:MASK:ENABle register part: 24 = 8 + 16 = 2 STATus:QUEStionable[:EVENt]? STATus:QUEStionable:COVerload[:EVENt]? STATus:QUEStionable:LIMit[:EVENt]?
Page 473: Programming Examples
® Remote Control R&S RTM20xx Programming Examples Parameters: <PositiveTransition> Bit mask in decimal representation Range: 1 to 65535 Increment: 1 Example: STATus:QUEStionable:MASK:PTRansition 24 Set bits no. 3 and 4 of the STATus:QUEStionable:MASK:PTRan- sition register part: 24 = 8 + 16 = 2 15.3 Programming Examples 15.3.1 Data Export 15.3.1.1...
Page 474 ® Remote Control R&S RTM20xx Programming Examples Command description in: c hapter 15.2.3, "General Remote Settings and Queries", on page 277. *RST TIM:SCAL 1E-7 CHAN:DATA:POIN DMAX // Set data range SING;*OPC? <-- CHAN:DATA:HEAD? // Read header <-- -4.9980E-07,5.0000E-07,5000,1 // Xstart, Xstop, record length in samples CHAN:DATA:YRES? // Read vertical resolution <--...
Page 475: Search
® Remote Control R&S RTM20xx Programming Examples Sample value = yOrigin + (yIncrement * byteValue The format UINT,8 has the data range 0 to 255. The voltage value for byte value 128 is: − 2.55E − 4 + (2E * 128) = 0.0001 The center of the display at position 0 div always has the byte value 127.5.
Page 476: Data And File Management
® Remote Control R&S RTM20xx Programming Examples 3.052000e-06,6,1.293984e-04,0,WIDTH,POSITIVE,9.176800e-06,7,1.477228e-04,0, WIDTH,POSITIVE,3.052000e-06,8,1.623224e-04,0,WIDTH,POSITIVE,3.102000e-06,9, 1.684724e-04,0,WIDTH,POSITIVE,1.215160e-05,10,1.953216e-04,0,WIDTH,POSITIVE, 3.027200e-06,11,2.044716e-04,0,WIDTH,POSITIVE,6.052000e-06,12,2.252212e-04,0, WIDTH,POSITIVE,3.052000e-06,13,2.435456e-04,0,WIDTH,POSITIVE,3.027200e-06,14, 2.496456e-04,0,WIDTH,POSITIVE,6.702000e-06 15.3.3 Data and File Management 15.3.3.1 Saving Screenshots to File Save two display images in png format to the PIX folder on a USB flash drive that is connected to the front panel.
Page 477 ® Remote Control R&S RTM20xx Programming Examples <-- 332112,8633856,"ZOOM_A.SET,,2759" MMEM:COPY "ZOOM_A.SET","ZOOM_B.SET" // Copy file MMEM:CAT? "*.SET" // Check <-- 332112,8633856,"ZOOM_A.SET,,2759","ZOOM_B.SET,,2759" MMEM:COPY "/INT/SETTINGS/ZOOM_B.SET","/USB_FRONT/ZOOM_B.SET" // Save copied file to USB stick MMEM:CDIR "/USB_FRONT" // Check MMEM:CAT? "*.SET" <-- 4890624,-641765376,"ZOOM_B.SET,,2759" MMEM:COPY "/USB_FRONT/ZOOM_B.SET","/USB_FRONT/ZOOM_USB.SET" // Duplicate file on USB stick MMEM:CAT? "*.SET"...
Page 478: List Of Commands
® List of Commands R&S RTM20xx List of Commands *CAL? ................................274 *CLS ................................274 *ESE ................................275 *ESR? ................................275 *IDN? ................................275 *OPC ................................275 *OPT? ................................275 *PSC ................................276 *RST ................................276 *SRE ................................276 *STB? ................................276 *TRG...
Page 479 ® List of Commands R&S RTM20xx BUS<b>: C AN: T YPE ............................406 BUS<b>: C PARallel: C LOCK: S LOPe ......................438 BUS<b>: C PARallel: C S: P OLarity ........................438 BUS<b>: C PARallel: F COunt? ........................439 BUS<b>: C PARallel: F RAMe<n>: D ATA? ......................439 BUS<b>:...
Page 480 ® List of Commands R&S RTM20xx BUS<b>: L IN: F RAMe<n>: S YSTate? ......................429 BUS<b>: L IN: F RAMe<n>: S YValue? ......................430 BUS<b>: L IN: F RAMe<n>: V ERSion? ......................430 BUS<b>: L IN: P OLarity ............................422 BUS<b>:...
Page 481 ® List of Commands R&S RTM20xx BUS<b>: U ART: P OLarity ..........................400 BUS<b>: U ART: R X: F COunt? .........................404 BUS<b>: U ART: R X: F RAMe<n>: W COunt? ....................404 BUS<b>: U ART: R X: F RAMe<n>: W ORD<o>: S TARt? ..................405 BUS<b>:...
Page 482 ® List of Commands R&S RTM20xx CHANnel<m>: D ATA: X INCrement? .......................280 CHANnel<m>: D ATA: X ORigin? ........................279 CHANnel<m>: D ATA: Y INCrement? .......................280 CHANnel<m>: D ATA: Y ORigin? ........................280 CHANnel<m>: D ATA: Y RESolution? .......................281 CHANnel<m>:...
Page 483 ® List of Commands R&S RTM20xx CURSor<m>: Y RATio: U NIT ..........................334 CURSor<m>: Y RATio[: V ALue]? ........................334 CURsor<m>: X RATio: U NIT ..........................333 DIGital<m>: D ISPlay ............................435 DIGital<m>: H ysteresis ...........................436 DIGital<m>: L ABel ............................436 DIGital<m>:...
Page 484 ® List of Commands R&S RTM20xx MASK: A CTion: S TOP: E VENt: M ODE ......................357 MASK: A CTion: W FMSave: E VENt: C OUNt ......................358 MASK: A CTion: W FMSave: E VENt: M ODE ......................357 MASK: C HCopy ..............................355 MASK:...
Page 485 ® List of Commands R&S RTM20xx MMEMory: M SIS .............................444 MMEMory: N AME ............................441 MMEMory: R DIRectory ...........................445 MMEMory: S TORe: S TATe ..........................449 PROBe<m>: I D: B UILd? ..........................300 PROBe<m>: I D: P ARTnumber? ........................300 PROBe<m>:...
Page 486 ® List of Commands R&S RTM20xx SEARch: G ATE: A BSolute: S TOP ........................361 SEARch: G ATE: M ODE ...........................361 SEARch: M EASure: L EVel: P EAK: M AGNitude ....................364 SEARch: M EASure: P EAK: P OLarity .......................364 SEARch:...
Page 487 ® List of Commands R&S RTM20xx SEARch: T RIGger: P ATTern: F UNCtion ......................370 SEARch: T RIGger: P ATTern: L EVel<n> ......................371 SEARch: T RIGger: P ATTern: L EVel<n>: D ELTa ....................371 SEARch: T RIGger: P ATTern: S OURce ......................370 SEARch:...
Page 488 ® List of Commands R&S RTM20xx STOP ................................282 SYST: P RESet ..............................453 SYSTem: B EEPer: C ONTrol: S TATe .......................452 SYSTem: B EEPer: E RRor: S TATe ........................452 SYSTem: B EEPer: T RIG: S TATe ........................452 SYSTem:...
Page 489 ® List of Commands R&S RTM20xx TRIGger: A : I 2C: A DDRess ..........................391 TRIGger: A : I 2C: A MODe ..........................390 TRIGger: A : I 2C: M ODE ...........................390 TRIGger: A : I 2C: P ATTern ..........................391 TRIGger:...
Page 490 ® List of Commands R&S RTM20xx TRIGger: A : W IDTh: W IDTh ..........................306 TRIGger: B : D ELay ............................313 TRIGger: B : E DGE: S LOPe ..........................312 TRIGger: B : E NABle ............................312 TRIGger: B : E VENt: C OUNt ..........................313 TRIGger:...
Page 491: Index
® Index R&S RTM20xx Index Symbols *OPC ................260 CAN ................185 *OPC? ................260 Protocol settings ............185 *RST ................273 Search settings ............194 *WAI ................260 Trigger settings ............186 Case-sensitivity SCPI ................ 252 Center Acquisition softkey ..............119 Limited number ............
Page 492 ® Index R&S RTM20xx Controls Differential probe .............. 18 Position / Offset (vertical) .......... 28 Digital channels .............. 208 Position (horizontal) ..........23 Label ................ 211 Scale (horizontal) ............23 Vertical position ............211 Scale (vertical) ............29 Vertical scale ............211 Copy Channel ..............
Page 493 ® Index R&S RTM20xx masks ..............218 interface ..............236 reference ..............218 interface messages ..........250 remote control interface .......... 242 Grid .................. 61 displaying ..............55 Fall time ................87 intensity ..............59 GTL ................250 activating ..............111 Center ..............
Page 494 ® Index R&S RTM20xx PREV ................ 73 MATH PRINT ..............224 menu ................ 101 Setup (instrument) ..........234 Mathematics SIGNAL OFF ............28 configuring ..............98 ZOOM ................ 69 equation sets ............100 FFT ................115 menu ................ 101 Math waveforms Label displaying ..............
Page 495 ® Index R&S RTM20xx Micro Button Peak detection ..............24 Settings ..............33 Period ................87 MIN ................255 Persist. Time ..............59 Mnemonics ..............251 Persistence ..............55, 59 optional ..............253 remote ..............318 MODE ................39 Persistence time MSK ................
Page 496 ® Index R&S RTM20xx Roll mode ................ 26 RS232 Queries ..............249, 258 basics ..............175 Status ..............271 RUN CONT ..............39 Question mark ............257, 258 RUN Nx SINGLE .............. 39 Quick measurement Runt deactivating (remote) ..........335 Search ..............
Page 497 ® Index R&S RTM20xx Service request enable Meas.Type (cursor) ..........78 remote ..............276 Memory usage ............227 Service request enable register (SRE) ......265 Menu Off ..............235 SET CLEAR ..............73 Minute ..............236 Setting commands ............249 Month ..............
Page 498 ® Index R&S RTM20xx Span Threshold remote ..............352 Protocols ..............148 softkey ..............119 Time ................ 78, 236 SPD ................250 Time base ............15, 70, 120 SPE ................250 Time diagram ..............58 Special characters Time reference ..............15 SCPI ................
Page 499 ® Index R&S RTM20xx Y-Scaling softkey ..............118 Value YT-Window softkey ..............108 softkey ..............119 Vertical Position ..............11 Resolution ..............11 Zoom Scale ................11 Main Time Base ..........70, 120 Vertical settings ..............29 menu ................69 Vertical system ..............

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