Page 1 R&S CMW270 ® Wireless Connectivity Tester User Manual (;×ìÔ2) 1173.9470.02 ─ 11 www.valuetronics.com...
Page 2 This user manual applies to the following R&S ® CMW models: ● R&S ® CMW270 1201.0002K75 (with display, selection R&S ® CMW-S600D) ● R&S ® CMW270 1201.0002K75 (without display, selection R&S ® CMW-S600C) The manual describes the base software, common features of the firmware applications and basic princi- ples for manual operation and remote control.
Page 3: Table Of Contents
Contents R&S ® CMW270 Contents 1 Preface....................9 What's New in this Revision..................9 Documentation Map...................... 9 1.2.1 Help System........................9 1.2.2 Quick Start Guide......................9 1.2.3 Documentation CD-ROM....................10 1.2.4 Documentation Update via Internet................10 Note about Faceless Instruments................10 2 Getting Started..................11 Putting the Instrument into Operation..............
Page 4 Contents R&S ® CMW270 2.5.3 Remote Operation in a LAN..................46 Maintenance........................ 49 2.6.1 Cleaning........................49 2.6.2 Storing and Packing...................... 50 2.6.3 Replacing Fuses......................50 3 System Overview................. 51 Generators........................51 3.1.1 Generator Control......................51 3.1.2 RF Path Settings (Generators)..................52 3.1.3 Real-Time and Arbitrary (ARB) Generators..............
Page 5 Contents R&S ® CMW270 4.4.2 Remote Settings......................88 4.4.3 Option Activation and Deactivation................91 4.4.4 SW/HW Equipment....................... 95 4.4.5 Selftests........................96 4.4.6 Sync Settings......................102 4.4.7 Trigger.........................104 4.4.8 Logging........................105 4.4.9 IP Subnet Configuration....................106 4.4.10 Digital IQ........................109 4.4.11 Frequency-Dependent Correction Tables..............110 4.4.12 Fan Control.........................
Page 6 Contents R&S ® CMW270 5.2.4 SCPI Command Structure and Syntax................134 R&S CMW Command Structure................141 5.3.1 General Command Structure..................142 5.3.2 Firmware Applications....................142 5.3.3 Measurement Contexts and Views................143 Control of the Instrument..................144 5.4.1 Generator Control....................... 144 5.4.2 Measurement Control....................146 5.4.3 Signaling Generator Control..................155 5.4.4...
Page 7 Contents R&S ® CMW270 5.9.2 LXI Browser Interface....................197 5.9.3 LAN Configuration.......................198 5.9.4 SCPI Remote Trace....................201 5.10 Monitoring the Instrument via SNMP..............203 6 Command Reference - Base Software..........204 Common Commands....................204 Emulation Codes....................... 206 Instrument-Control Commands................207 6.3.1 Macro Commands.......................207 6.3.2 Buffer Commands.......................
Page 8 Contents R&S ® CMW270 Index....................319 User Manual 1173.9470.02 ─ 11 www.valuetronics.com...
Page 9: Basic Safety Instructions
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 10 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 11 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 12 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 13 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 14 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 15: Instrucciones De Seguridad Elementales
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 16 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 17 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 18 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 19 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 20 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 21 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 22 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 23 Quality management Certiied Quality System ISO 9001 and environmental Certiied Environmental System management ISO 14001 Sehr geehrter Kunde, Dear customer, Cher client, Sie haben sich für den Kauf You have decided to buy a Vous avez choisi d’acheter un eines Rohde & Schwarz Produk- Rohde &...
Page 24: Customer Support
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 25: Preface
Preface R&S ® CMW270 What's New in this Revision 1 Preface This chapter provides an overview of new features and an overview of the R&S CMW270 operating documentation. 1.1 What's New in this Revision This revision describes version 3.2.60 and higher of the R&S CMW270 base software. Compared to version 3.2.50 it provides the new features listed below.
Page 26: Documentation Cd-Rom
Preface R&S ® CMW270 Note about Faceless Instruments 1.2.3 Documentation CD-ROM The CD-ROM provides the complete user documentation for the R&S CMW270: ● the online help system ● the Quick Start Guide in printable form ● the User Manuals in printable form ●...
Page 27: Getting Started
Getting Started R&S ® CMW270 Putting the Instrument into Operation 2 Getting Started This chapter describes the first steps required to put the instrument into operation and to get familiar with the control elements, connectors and the basic principles of manual operation.
Page 28: Positioning The Instrument
Getting Started R&S ® CMW270 Putting the Instrument into Operation 3. Carefully unthread the corrugated cardboard cover at the front that protects the instrument handles and remove it. 4. Check the equipment for completeness using the delivery note and the accessory lists for the various items.
Page 29 Getting Started R&S ® CMW270 Putting the Instrument into Operation Risk of injury if feet are folded out The feet may fold in if they are not folded out completely or if the instrument is shifted. This may cause damage or injury. ●...
Page 30 Getting Started R&S ® CMW270 Putting the Instrument into Operation Risk of injury and instrument damage if stacking instruments A stack of instruments may tilt over and cause injury. Furthermore, the instruments at the bottom of the stack may be damaged due to the load imposed by the instruments on top.
Page 31: Starting The Instrument
Getting Started R&S ® CMW270 Putting the Instrument into Operation 2.1.3 Starting the Instrument Risk of instrument damage during operation An unsuitable operating site or test setup can cause damage to the instrument and to connected devices. Ensure the following operating conditions before you switch on the instrument: ●...
Page 32: Emi Suppression
Getting Started R&S ® CMW270 Putting the Instrument into Operation The tester automatically performs a system check, boots the Windows operating sys- tem and starts the CMW application. If the previous session was terminated regularly, the CMW application uses the last setup with the relevant instrument settings. Once the startup procedure has been terminated, the dialog opened in the previous session is displayed.
Page 33: Instrument Tour
Getting Started R&S ® CMW270 Instrument Tour Fig. 2-1: Ethernet connection between LAN SWITCH and LAN REMOTE connectors The patch cable is only functional if the "Lan Remote" network adapter is integrated into the internal IPv4 subnet of the instrument. For configuration of a compatible "Lan Remote"...
Page 34 Getting Started R&S ® CMW270 Instrument Tour Soft-Front Panel When using a remote desktop connection or an external monitor a soft-front panel is available. See also chapter 2.4.4, "Using the Soft-Front Panel and Keyboard Shortcuts", on page 38. 2.2.1.1 Utility Keys The utility keys to the left of the display provide access to the utility dialogs, to the help system and to the operating system.
Page 35 Getting Started R&S ® CMW270 Instrument Tour ● BUSY: The instrument is booted, or a software module is loaded. ● READY: The instrument is ready for use, the startup procedure is finished. 2.2.1.3 Standby Key The standby key is located in the bottom left corner of the front panel. The standby key serves two main purposes: ●...
Page 36 Getting Started R&S ® CMW270 Instrument Tour 2.2.1.5 Setup Keys The upper keys to the right of the display provide access to dialogs for basic instru- ment setup. Additional dialogs can be accessed via the utility keys to the left of the dis- play.
Page 37 Getting Started R&S ® CMW270 Instrument Tour ● 0 to 9 – enter numbers (in numeric input fields) or characters (character input fields). ● DOT, PLUS/MINUS: – In numeric input fields, the keys enter the decimal point and change the sign of the entered numeric value.
Page 38 Getting Started R&S ® CMW270 Instrument Tour 2.2.1.9 Window Control Keys The keys below the numeric key pad arrange windows on the display. ● CLOSE – closes the active window, e.g. a configuration dialog ● MIN – reduces the active window to an icon ●...
Page 39 Getting Started R&S ® CMW270 Instrument Tour Risk of instrument damage The maximum input levels at all bidirectional RF connectors according to the front panel labeling or the data sheet must not be exceeded. In addition, the maximum input voltages of other input connectors at the front and rear panel must not be exceeded.
Page 40: Rear Panel Tour
Getting Started R&S ® CMW270 Instrument Tour LAN Connector 8-pin connector RJ-45 used to connect the R&S CMW270 to a Local Area Network (LAN). It supports up to 100 Mbit/s. A second LAN connector labeled LAN REMOTE is available on the rear panel of the instrument. See also chapter 2.5.3, "Remote Operation in a LAN",...
Page 41: Optional Connectors
Getting Started R&S ® CMW270 Instrument Tour Available on all instruments ● AC power connector and ground screw: Use the AC power connector to connect the instrument to an AC power supply. If desired, ground the instrument addition- ally via the ground screw (labeled ) and an appropriate cable.
Page 42: Connecting External Devices
Getting Started R&S ® CMW270 Instrument Tour Risk of instrument damage The maximum input levels and voltages of the input connectors at the front and rear panel must not be exceeded. 2.2.3 Connecting External Devices The equivalent USB ports on the front and rear panel of the R&S CMW270 can be used to connect a variety of devices: ●...
Page 43 Getting Started R&S ® CMW270 Instrument Tour To access Windows XP via a front panel with display, press the SYS key. Note that operating a tester with display does not require a keyboard. You can access all essen- tial functions using the keys on the front panel. 2.2.3.3 Connecting a Printer A printer can be connected to one of the USB connectors on the front panel or on the...
Page 44: Trying Out The Instrument
Getting Started R&S ® CMW270 Trying Out the Instrument XP Quick Launch Toolbar. Select "Digital Display" (the external monitor) as primary device and "Notebook" (the internal display) as secondary device. A reboot may be required after modification of the driver settings. Please note that the default resolution configured for the external monitor equals 800 x 600 pixel.
Page 45 Getting Started R&S ® CMW270 Trying Out the Instrument As a result the "General Purpose RF - Generator" dialog is opened. Configure the following settings as described in the next steps. Fig. 2-2: Settings in General Purpose RF Generator dialog 2.
Page 46: Measuring An Rf Signal
Getting Started R&S ® CMW270 Trying Out the Instrument Fig. 2-3: Dual-tone generator signal To tap the resulting RF generator signal at the RF 1 COM connector, proceed with Measuring an RF Signal. ARB generator The GPRF dual-tone signal is an example for a real-time generator signal. As an alter- native, the GPRF generator application provides the arbitrary ("ARB") baseband mode.
Page 47 Getting Started R&S ® CMW270 Trying Out the Instrument 3. Open the "GPRF Measurements" application, e.g. from the task bar (press "TASKS" to open the task bar). If the application is not present in the task bar, enable it in the "Measurement Con- troller"...
Page 48: Performing Signaling Measurements
Getting Started R&S ® CMW270 Trying Out the Instrument 2.3.3 Performing Signaling Measurements The purpose of a signaling application is to establish a network connection to a Mobile Station (MS) in order to perform various tests. All signaling applications are controlled in an analogous manner.
Page 49: Operating The Instrument
Getting Started R&S ® CMW270 Operating the Instrument Fig. 2-5: WiMAX Mobile Capabilities 2.4 Operating the Instrument You can operate the instrument manually or via remote control: ● Remote control: You create scripts to automate repeating settings, tests and measurements. The instrument is connected to a computer that is running the program.
Page 50: Accessing Applications And Dialogs
Getting Started R&S ® CMW270 Operating the Instrument Contents and scope This chapter describes the operation of an instrument with display and front panel con- trol keys. Control of an instrument without display using emulated front panel controls is analogous; see chapter 2.4.4, "Using the Soft-Front Panel and Keyboard Shortcuts", on page 38.
Page 51: Entering Data Via Front Panel Keys
Getting Started R&S ® CMW270 Operating the Instrument The color of the icon in a hotkey corresponds to the state of the application (OFF / RUN / RDY for measurements or OFF / ON for generators and signaling genera- tors). 2.
Page 52: Entering Characters
Getting Started R&S ® CMW270 Operating the Instrument Navigating within a dialog ► Use either the rotary knob or the ARROW keys below the knob to step through the elements in the dialog. a) Turn the rotary knob clockwise or counterclockwise. b) Press the UP / DOWN and LEFT / RIGHT ARROW keys.
Page 53: Entering Data Via An External Keyboard
Getting Started R&S ® CMW270 Operating the Instrument 2. Enter/modify characters: ● Press 0 to 9 repeatedly to enter one of the characters assigned to the key. ● Press the dot key repeatedly to enter one of the special characters assigned to the key.
Page 54: Using The Soft-Front Panel And Keyboard Shortcuts
Getting Started R&S ® CMW270 Operating the Instrument ● Use the LEFT / RIGHT ARROW keys to move the cursor within the input field. ● Use the minus key to change the sign of a number. ● Press CTRL + F9 / F10 / F11 / F12 to multiply a numeric value with factors of 1, (-)3 , 10 (-)6...
Page 55: Administrative Tasks
Getting Started R&S ® CMW270 Administrative Tasks Table 2-1: (Soft-)front panel keys and keyboard shortcuts Shortcut RESET CTRL + R INFO CTRL + I SAVE CTRL + S SETUP CTRL + E PRINT CTRL + P HELP SYSTEM Windows logo key + D, CTRL + ALT + D DEVICE CTRL + D WIZARD...
Page 56: Windows Xp
Getting Started R&S ® CMW270 Administrative Tasks 2.5.1 Windows XP The R&S CMW270 is equipped with a Windows XP operating system which has been configured according to the instrument's features and needs. Changes in the system configuration can be necessary in order to: ●...
Page 57 Getting Started R&S ® CMW270 Administrative Tasks 2.5.2.1 Software Packages The R&S CMW270 software consists of the mandatory CMW base software package plus optional packages for firmware applications and utilities. These packages are inte- grated in setup files named "Setup_CMW_<Scope>(Release)_<Version>.exe". For the base software package <Scope>...
Page 58 Getting Started R&S ® CMW270 Administrative Tasks 2.5.2.3 Update Procedure Connection to power supply Ensure that the instrument remains connected to the power supply during software modifications (uninstall or update). Disconnecting the instrument during a software modification may result in an inopera- ble state of the instrument that can only be resolved by Rohde &...
Page 59 Getting Started R&S ® CMW270 Administrative Tasks In the "R&S Software Distributor" opened, select either "Local Installation" or "Remote Installation", depending on the location of your setup files. If you want to install additional packages provided by other setup files, enable "Add other setups from current directory".
Page 60 Getting Started R&S ® CMW270 Administrative Tasks ● Downgrade to the latest official software and verification. The tests are passed if all verification results show comparable values. Rohde & Schwarz is certified according to ISO 9001 since May 1995. 2.5.2.4 R&S Software Distributor The "R&S Software Distributor"...
Page 61 Getting Started R&S ® CMW270 Administrative Tasks 3. In the "R&S Software Distributor" dialog enable "Add other setups from current directory". As a result the packages of all setup files in the same directory are offered for installation when you press "Next". The installation process itself is self-explanatory.
Page 62: Remote Operation In A Lan
Getting Started R&S ® CMW270 Administrative Tasks 2. Click the relevant action button to the right and follow any instructions of the "R&S Version Selector" until the action is finished. 2.5.3 Remote Operation in a LAN A LAN connection is used to integrate the R&S CMW270 into a home/company net- work or to connect it directly to another PC or instrument.
Page 63 Getting Started R&S ® CMW270 Administrative Tasks ● A dedicated network connection between the tester and a single computer. The computer must be equipped with a network adapter and is directly connected to the tester. The use of hubs, switches, or gateways is not needed, however, data trans- fer is still made using the TCP/IP protocol.
Page 64 Getting Started R&S ® CMW270 Administrative Tasks Manual TCP/IP Configuration To disable dynamic TCP/IP configuration and enter the TCP/IP address information manually proceed as follows: 1. Obtain the IP address and subnet mask for the R&S CMW270 and the IP address for the local default gateway from your network administrator.
Page 65: Password Protection
Getting Started R&S ® CMW270 Maintenance 6. Connect the tester to the network; see chapter 2.5.3.1, "Connecting a LAN Cable", on page 46. 7. Assign an IP address to the tester; see chapter 2.5.3.2, "Assigning an IP Address", on page 47. 8.
Page 66: Storing And Packing
Getting Started R&S ® CMW270 Maintenance Risk of instrument damage due to obstructed fans If the instrument is operated in dusty areas, the fans may become obstructed by dust or other particles in the process of time. Make sure to check and, if necessary, clean the fans regularly to ensure they operate properly at all times.
Page 67: System Overview
System Overview R&S ® CMW270 Generators 3 System Overview This chapter provides an overview of the capabilities of the R&S CMW270 and their use. This includes a description of the basic concepts that the tester uses to organize, process and display measurement data. These basic concepts are valid for all firm- ware applications.
Page 68: Rf Path Settings (Generators)
System Overview R&S ® CMW270 Generators "Generator pending" state Depending on the generator type and configuration, the R&S CMW270 may require some time to provide the generator signal. E.g. the ARB generator signal is available only after a waveform file has been loaded: While the generator is turned on but still waiting for resource allocation, adjustment, hardware switching, a yellow sandglass symbol in the generator control softkey indi- cates the "generator pending"...
Page 69: Real-Time And Arbitrary (Arb) Generators
System Overview R&S ® CMW270 Generators With a total external attenuation of x dB, the generator power is increased by x dB so that the actual generator power differs from the output power shown in the dialog. The output power in the dialog is available at the input of the DUT. Negative values of the external attenuation decrease the effective generator power.
Page 70: Measurements
System Overview R&S ® CMW270 Measurements 3.2 Measurements The R&S CMW270 provides several measurements for each of the supported network standards or general purpose applications. All measurements are controlled in an anal- ogous way. The following topics describe the principles of measurement control and measurement results that are similar in many measurement contexts.
Page 71 System Overview R&S ® CMW270 Measurements Signal Routing Settings (Input) The R&S CMW270 provides several RF connectors at the front panel. The RF input connector and the RX module to be used are selected in the "RF Routing" section at the beginning of the measurement configuration dialogs.
Page 72: Statistical Settings
System Overview R&S ® CMW270 Measurements The table entries can be displayed by clicking the button "FDCorr!". Expected Nominal Power Defines the nominal power of the RF signal to be measured. The nominal power should be set in accordance with the actual transmitter output power of the DUT; an additional "External Attenuation"...
Page 73: Statistical Results
System Overview R&S ® CMW270 Measurements Measurement interval examples: ● The measurement interval for the GPRF Power measurement is a configurable time interval termed the Measurement Length/Step Length. This corresponds to either a single power step (if no sequence mode is active) or a step sequence. ●...
Page 74 System Overview R&S ® CMW270 Measurements Consecutive measurement values are stored and used to calculate statistical results. The following sections describe the calculation of statistical results in detail. 3.2.4.1 Statistics Type The statistics type defines how the R&S CMW270 calculates the displayed values if the measurement extends over several measurement intervals.
Page 75 System Overview R&S ® CMW270 Measurements 3.2.4.2 Detectors The detector setting specifies how a single measurement result is calculated from a set of adjacent measurement points: ● RMS: The displayed result represents the RMS average (e.g. the mean power) in a specified measurement interval.
Page 76 System Overview R&S ® CMW270 Measurements 3.2.4.3 Peak Values "Peak" values are calculated as the maximum of the magnitude times the sign: ● For positive quantities such as the EVM, the peak value is equal to the maximum. ● For negative quantities such as the I/Q offset and the I/Q imbalance, expressed in dB, the peak value is equal to the minimum.
Page 77: Limit Check
System Overview R&S ® CMW270 Measurements 3.2.4.5 Standard Deviation The "Standard Deviation" σ indicates the spread of the n values at each measurement point. It is defined as the square root of the variance, which is the mean square of the deviation of the values from their own arithmetic mean.
Page 78: Measurement Triggers
System Overview R&S ® CMW270 Measurements The following example shows the template for an 8PSK-modulated GSM burst: To pass the limit check all "Power vs. Time" results must be between the upper and the lower limit lines. Fig. 3-3: Example of limit lines (GSM) The pass/fail indication in the result tables have the following meaning.
Page 79 System Overview R&S ® CMW270 Measurements ● Real-time or ARB generators can generate marker signals, to be used for synchro- nization of a measurement. ● Signaling applications provide trigger events which are synchronized to their down- link (forward link) signals. Due to the known downlink/uplink timing of the mobile station under test, a signaling trigger is generally appropriate for TX measurements running in parallel.
Page 80: Tx Measurements
System Overview R&S ® CMW270 Measurements 3.2.7 TX Measurements The purpose of a TX measurement is to assess the performance of an RF transmitter. Despite the differences in detail, TX measurements for different network standards have many properties in common. 3.2.7.1 Power Results Power measurements are essential, e.g.
Page 81 System Overview R&S ® CMW270 Measurements Error Vector Magnitude (EVM), Phase Error, Magnitude Error, Code Domain Error The error vector E = Z - R’ is calculated as an array at each sample in the measure- ment interval. From E and Z the following arrays can be calculated: | E | = | Z - R’...
Page 82 System Overview R&S ® CMW270 Measurements I/Q Offset, I/Q Imbalance, Waveform Quality The following figure is an idealized representation of the modulation errors where the effects of a pure origin offset (first diagram) and of a pure I/Q imbalance (second dia- gram) are completely disentangled.
Page 83 System Overview R&S ® CMW270 Measurements The I/Q offset in dB (or dBc, according to some network standards) is the logarithmic ratio of the I/Q offset vector (i.e. the estimated DC-offset of the measured signal) to the average offset-corrected signal vector: In the equation above, | Offset - corrected signal vector | denotes the magnitude of the offset-corrected signal vector that is RMS-averaged over all samples.
Page 84 System Overview R&S ® CMW270 Measurements The off-carrier power can be assessed by several complementary quantities: ● The Adjacent Channel Leakage power Ratio (ACLR) is the ratio of the power mea- sured in an adjacent channel (Adjacent Channel Power, ACP) to the transmitted carrier power, expressed in dB.
Page 85 System Overview R&S ® CMW270 Measurements Fig. 3-4: Spectrum emission mask (WCDMA/FDD 3.84 MHz) Occupied Bandwidth (OBW) For wideband and OFDM(A) signals, the "Occupied Bandwidth" is the width of a sym- metric frequency interval around the nominal RF carrier frequency that contains 99 % of the total integrated power of the transmitted spectrum.
Page 86 System Overview R&S ® CMW270 Measurements Fig. 3-5: Occupied bandwidth (WCDMA/FDD 3.84 MHz) 3.2.7.4 Code Domain Power A Code Domain Power (CDP) measurement provides the power of the individual code channels of a CDMA signal. The power in each code channel is averaged over a suita- ble time interval (e.g.
Page 87 System Overview R&S ® CMW270 Measurements 3.2.7.5 I/Q Constellation Diagram The constellation diagram shows the modulation symbols as points in the I/Q plane. Fig. 3-6: LTE Multi Evaluation: I/Q Constellation diagram The constellation diagrams depend on the modulation type; for details refer to the description of the individual firmware applications.
Page 88 System Overview R&S ® CMW270 Measurements table below. In practice, the received signal will show a combination of the modulation errors listed. Modulation error Description / cause Effect in the constellation diagram I/Q imbalance Caused by different gains of the I and Q compo- One of the components is nents expanded, the other com-...
Page 89: Rx Measurements
System Overview R&S ® CMW270 Measurements ● They provide a comprehensive picture of the performance of a tested RF transmit- ter with a minimum of effort for configuring the R&S CMW270. ● They provide "linked" results: The different measured quantities are all based on the same set of raw measurement data.
Page 90: Markers
System Overview R&S ® CMW270 Signaling Applications ator in combination with a measurement application. No signaling functionality is required. ● Signaling applications provide integrated receiver quality tests. The receiver quality is assessed with an established network connection; the details are network- dependent.
Page 91: Rf Path Settings
System Overview R&S ® CMW270 Signaling Applications exchange control messages with the mobile, request the mobile capabilities, and per- form various TX and RX tests. The R&S CMW270 supports the WiMAX and WLAN signaling applications. The follow- ing topics describe common features of the signaling applications. For a sample session refer to chapter 2.3.3, "Performing Signaling Measurements",...
Page 92: Connection States
System Overview R&S ® CMW270 Signaling Applications As soon as an output signal is available at the selected connector, the control softkey indicates the "ON" state: The "RDY" state indicates that the signaling application is ready to receive a handover from another signaling application.
Page 93: Sub-Instruments
System Overview R&S ® CMW270 Sub-Instruments 3.4 Sub-Instruments An instrument with several RX and TX signal paths can either be used as one (sub-)instrument or it can be split into several sub-instruments which operate inde- pendently. This section provides basic information related to both modes. In the factory default configuration, all resources are grouped together in a single sub- instrument.
Page 94: Two Sub-Instruments
System Overview R&S ® CMW270 Sub-Instruments Table 3-3: Accessible RX/TX modules depending on baseband link Instance 1 Instance 2 Flexible link RX 1, RX 2, TX 1, TX 2 RX 1, RX 2, TX 1, TX 2 Fixed link RX 1, TX 1 RX 2, TX 2 Each RX and TX module is fix connected to one frontend and can only access the RF connectors of this frontend.
Page 95 System Overview R&S ® CMW270 Sub-Instruments The table below summarizes these assignments. All assignments are fixed. The firm- ware application instances of the two sub-instruments are named identically, but are independent of each other. Table 3-4: Assignments for two sub-instruments Sub-instrument 1 Sub-instrument 2 Generator Controller entry...
Page 96: Basic Instrument Functions
Basic Instrument Functions R&S ® CMW270 Startup Dialog 4 Basic Instrument Functions The following sections describe dialogs and settings for general use. The dialogs are not related to a particular general purpose or network test application. 4.1 Startup Dialog The "Startup" dialog shows the progress of the startup procedure and the available options.
Page 97: Reset Dialog
Basic Instrument Functions R&S ® CMW270 Reset Dialog Factory Default Sets the instrument to its factory default state. This state comprises the following settings: ● Preset settings: The instrument is optimized for local/manual operation. ● The address information assigned to the instrument (e.g. the IP address or USB product ID/vendor ID/device ID).
Page 98 Basic Instrument Functions R&S ® CMW270 Reset Dialog Fig. 4-2: Dialog for 1 sub-instrument Fig. 4-3: Dialog for several sub-instruments The reset/preset can be performed for the entire R&S CMW270 or it can be limited to the current firmware application. If the R&S CMW270 has been split into sub-instruments, the reset/preset can also be limited to the current sub-instrument.
Page 99: Save/Recall Dialog
Basic Instrument Functions R&S ® CMW270 Save/Recall Dialog Reset Sets the instrument parameters to values suitable for remote operation. In particular, the reset state comprises the following settings: ● All measurements are performed in Single-Shot mode ("Repetition: Single-Shot"). ● The R&S CMW270 uses short statistics cycles (for benchmarks). ●...
Page 100 Basic Instrument Functions R&S ® CMW270 Save/Recall Dialog Fig. 4-4: Save/Recall dialog The "Save/Recall" dialog provides the following control softkeys and hotkeys. Save / Partial Save Saves the current configuration (or a part of it) to a file. Save files are stored in a default directory on drive D: of the internal hard disk.
Page 101: Setup Dialog
Basic Instrument Functions R&S ® CMW270 Setup Dialog "Partial Recall" opens a dialog for selection of the information to be recalled. For a description of selectable parts see "Show content" on page 85. Remote command: MMEMory: R CL MMEMory: L OAD: I TEM Add Folder Adds a new subfolder to the selected folder.
Page 102: System Settings
Basic Instrument Functions R&S ® CMW270 Setup Dialog 4.4.1 System Settings The "System" section of the "Setup" dialog configures the display, the network adapt- ers, settings for remote software update and startup of the instrument. It also provides access to a configuration dialog of the data application unit (if installed). Fig.
Page 103 Basic Instrument Functions R&S ® CMW270 Setup Dialog Turn Off Monitor ← Display Press "Off" to turn off the built-in display of the instrument or an external monitor at the DVI connector of the R&S CMW270. You can reactivate the monitor/display via a connected keyboard, a connected mouse or via the front panel keys.
Page 104: Remote Settings
Basic Instrument Functions R&S ® CMW270 Setup Dialog Startup If "Boot Factory Default" is enabled, the instrument is booted with factory default set- tings. Enabling this setting has the same effect as pressing the "Factory Default" softkey each time the instrument is started, see chapter 4.1, "Startup Dialog", on page 80.
Page 105 Basic Instrument Functions R&S ® CMW270 Setup Dialog Fig. 4-6: Setup - Remote Most connection parameters are fixed and displayed for information only. The most important parameters are described below. Visa Resource (all protocol types)................89 Assigned Instrument (all protocol types)...............
Page 106: Assigned Instrument (All Protocol Types)
Basic Instrument Functions R&S ® CMW270 Setup Dialog Assigned Instrument (all protocol types) Identifies the sub-instrument to be controlled. This parameter is fixed. If only one sub- instrument is available, it is addressed as "Assigned Instrument 1". See also chapter 3.4, "Sub-Instruments", on page 77.
Page 107: Option Activation And Deactivation
Basic Instrument Functions R&S ® CMW270 Setup Dialog Board Name (IEC only) One or two optional GPIB bus interfaces can be installed (options R&S CMW-B612A and R&S CMW-B612B). The two interfaces have different board names. Board number 0 is related to connector "IEEE 488 CH 1", board number 1 to connector "IEEE 488 CH 2".
Page 108: Manual Activation
Basic Instrument Functions R&S ® CMW270 Setup Dialog The "License Keys" section provides the following subsections: ● Active License Keys: lists non-portable active licenses. The list can be sorted alphabetically or by category (toggle parameter "Show Category View"). ● Portable License Keys: lists portable active licenses ●...
Page 109 Basic Instrument Functions R&S ® CMW270 Setup Dialog Manual Deactivation Use this softkey to apply a deactivation key by manually typing in the deactivation key code. A dialog box is opened. Enter the deactivation key code and save the response key to a file.
Page 110 Basic Instrument Functions R&S ® CMW270 Setup Dialog 4.4.3.2 Moving a Portable License As an example for license management, the following procedure describes how to move an active portable license to another instrument. The example procedure involves the transfer of files between the R&S License Man- ager and the instruments.
Page 111: Sw/Hw Equipment
Basic Instrument Functions R&S ® CMW270 Setup Dialog a) Enter the deactivation response key generated in the previous step. You can copy the key from the stored response key file. As a result, a portable license file registered for the target instrument is gener- ated.
Page 112: Selftests
Basic Instrument Functions R&S ® CMW270 Setup Dialog 4.4.5 Selftests The R&S CMW270 provides extensive selftest procedures on module and system level. The selftests are primarily intended for production and service purposes; they are not needed during normal operation of the instrument. The following description serves as a general overview.
Page 113 Basic Instrument Functions R&S ® CMW270 Setup Dialog TCXO / OCXO selftest To perform a selftest on the Temperature Controlled Crystal Oscillator (TCXO) or on the optional oven quartz (Timebase OCXO, option R&S CMW-B690A), you have to switch the R&S CMW270 to internal reference frequency source, see chapter 4.4.6, "Sync Settings",...
Page 114 Basic Instrument Functions R&S ® CMW270 Setup Dialog Download Test The R&S CMW270 loads program data into a DSP or FPGA module and verifies that the module responds properly. EEprom Test The R&S CMW270 verifies that the I2C EEprom data of the board is well-formed (i.e. the syntax is correct, the contents are logically compatible).
Page 115 Basic Instrument Functions R&S ® CMW270 Setup Dialog 4.4.5.3 Unit Tests A unit test verifies that the communication between several internal modules of the instrument is uninterrupted. A passed unit test usually proves that several modules (e.g. boards and bus systems connecting these boards) work properly. Unit tests and board tests A unit test represents an efficient method for testing the instrument's overall function- ing.
Page 116 Basic Instrument Functions R&S ® CMW270 Setup Dialog A similar message ("Please disconnect...") is displayed after the test is finished. 4.4.5.4 Performing Selftests Selftests are controlled like any other measurement. The following example shows an "RF Loop Test" which is appropriate for a general check of the RF path. RF Loop Test The "RF Loop Test"...
Page 117 Basic Instrument Functions R&S ® CMW270 Setup Dialog Save Profile, Load Profile A profile is a particular selftest configuration that you store for later reuse. The profile contains all enabled selftests together with their user-defined parameters (if there are any) and the Selftest Configuration parameters.
Page 118: Sync Settings
Basic Instrument Functions R&S ® CMW270 Setup Dialog "*" enables or disables all selftests "*EEprom*" enables or disables the EEprom tests for all boards As an alternative to the selection filter, use the "Enable/Disable All" or "Enable/Disable Subtree" hotkeys. Enable/Disable All, Enable/Disable Subtree Selects all or a current group (subtree) of selftests for execution or clears the current selection.
Page 119 Basic Instrument Functions R&S ® CMW270 Setup Dialog "External" With external synchronization, the internal reference frequency is not used. Instead, the R&S CMW270 is synchronized to an external ref- erence signal with variable frequency. The external reference signal is also routed to the output connector REF OUT 1 in order to syn- chronize other devices.
Page 120: Trigger
Basic Instrument Functions R&S ® CMW270 Setup Dialog "Listener" The instrument receives a time synchronization signal at SYS SYNC IN from another R&S CMW270 that is configured as "Generator". Remote command: SYSTem: B ASE: S SYNc: M ODE 4.4.7 Trigger This dialog configures the connectors TRIG A and TRIG B at the rear panel of the instrument and allows to initiate the generation of a "User Initiated Trigger"...
Page 121: Logging
Basic Instrument Functions R&S ® CMW270 Setup Dialog Source ← TRIG A, TRIG B Source for output trigger signal. "No Connection" means that no output trigger signal is fed to the trigger connector. The listed trigger sources include also input trigger signals fed in at TRIG A (TRIG B) that you can use as output trigger signals at TRIG B (TRIG Most trigger sources depend on the installed options.
Page 122: Ip Subnet Configuration
Basic Instrument Functions R&S ® CMW270 Setup Dialog Fig. 4-13: Setup - Logging Signaling Message Monitoring Configures the logging PC address pool. In the signaling application you select the pool entry to be used, so different signaling applications can use different logging PCs. The logging PCs are connected to the internal subnet of the instrument.
Page 123 Basic Instrument Functions R&S ® CMW270 Setup Dialog connector 1 of the LAN SWITCH. Assign the subnet conform IP address w.x.y.3 to the "Lan Remote" network adapter via the configuration dialog, see "Network Adapter" on page 108. The patch cable and the subnet conform "Lan Remote" IP address are required by the following applications: ●...
Page 124 Basic Instrument Functions R&S ® CMW270 Setup Dialog Node Type ← Subnet Node Displays the type of the subnet node (always CMW). Remote command: SENSe: B ASE: I PSet: S NODe: N TYPe? Node ID ← Subnet Node Selects the ID of the subnet node, used as third octet of the IPv4 address. Example: Node ID = 10 results in w.x.10.z.
Page 125: Digital Iq
Basic Instrument Functions R&S ® CMW270 Setup Dialog Subnet Monitor List of all nodes detected in the subnet, including the instrument itself. The list indicates the name, the type, the ID and the description of each node. For the R&S CMW270 this information corresponds to the values in section "Subnet Node"...
Page 126: Frequency-Dependent Correction Tables
Basic Instrument Functions R&S ® CMW270 Setup Dialog The entered delay is e.g. used to correct measured round-trip times, the timing of trig- ger events or the time relation between downlink and uplink signals. For background information on the digital I/Q board and many possible test setups (including fading tests) refer to the User Manual "R&S CMW500 Protocol Testing Test Setups and Use Cases".
Page 127 Basic Instrument Functions R&S ® CMW270 Setup Dialog └ Save Changes....................112 └ Entry...................... 113 └ Delete Entry....................113 Edit Tables This section selects a correction table and displays its entries. You can edit existing table entries directly. To add or delete entries, use the corre- sponding softkeys.
Page 128 Basic Instrument Functions R&S ® CMW270 Setup Dialog A global reset or preset deletes all assignments. A reset or preset of a sub-instrument or application does not affect the assignments. Remote command: CONFigure: F DCorrection: A CTivate CONFigure: F DCorrection: D EACtivate CONFigure:...
Page 129: Fan Control
Basic Instrument Functions R&S ® CMW270 Setup Dialog When the application software is closed (e.g. by pressing the standby key), all correc- tion tables in the RAM are stored to the hard disk automatically. The softkey performs this action immediately. Remote command: CONFigure:...
Page 130: Print Dialog
Basic Instrument Functions R&S ® CMW270 Print Dialog "High (Production Line)" The temperature thresholds for fan speed control are lower than in normal mode. Generally this results in lower temperatures and more noise emission. So this mode can be used to maximize the cooling and thus the life- time of the instrument components.
Page 131: Info Dialog
Basic Instrument Functions R&S ® CMW270 Info Dialog Print You can trigger a screenshot via the "Print" button or via one of the following com- mands. Remote command: HCOPy: F ILE HCOPy: I NTerior: F ILE HCOPy: D ATA? HCOPy: I NTerior: D ATA? 4.6 Info Dialog The "Info"...
Page 132 Basic Instrument Functions R&S ® CMW270 Info Dialog Fig. 4-19: Info – Current State State Generator state, signaling generator state or measurement state, see Generator Con- trol, Measurement Control Control of the Cell State. Reliability, Message, Additional Info The reliability indicator describes the validity of measurement results and the possible source of inaccuracies or errors.
Page 133: Problem Reporting
Basic Instrument Functions R&S ® CMW270 Info Dialog OS Settings Displays the most important address settings for remote control. For configuration see chapter 4.4.1, "System Settings", on page 86. Latest Correction Displays the type and date of the last correction of the instrument. Remote commands allow also to query information about previous corrections.
Page 134 Basic Instrument Functions R&S ® CMW270 Info Dialog Fig. 4-20: Info – Problem Reporting The dialog provides the following hotkeys. Prepare for sending Stores the selected log file directory into one or more compressed files, located in the "Output" directory. Max.
Page 135: Instrument Setup Dialog
Basic Instrument Functions R&S ® CMW270 Instrument Setup Dialog 4.7 Instrument Setup Dialog The "Instrument Setup" dialog is only relevant for instruments with several RX and TX signal paths. These instruments are equipped with six RF connectors at the front panel, while instruments with one path provide only three RF connectors.
Page 136: Measurement Controller Dialog
Basic Instrument Functions R&S ® CMW270 Measurement Controller Dialog 4.8 Measurement Controller Dialog The "Measurement Controller" dialog lists the available measurement firmware appli- cations and allows to add measurement applications to the task bar. To open the dialog press the MEASURE key at the (soft-)front panel. Fig.
Page 137: Blockview Dialog
Basic Instrument Functions R&S ® CMW270 Blockview Dialog 4.10 Blockview Dialog The "Blockview" dialog provides an overview of the configured signal routing settings. It allows to: ● display the current allocation of signal path resources to firmware applications ● display the signal path configured for a firmware application ●...
Page 138: Show Active Routing
Basic Instrument Functions R&S ® CMW270 Blockview Dialog Each block provides the graphical presentation of an LED, indicating the state of the displayed firmware application. A yellow LED indicates "RUN" or "ON", a green LED indicates "RDY" and a red LED indicates started ("RUN") but error occurred (e.g.
Page 139 Basic Instrument Functions R&S ® CMW270 Blockview Dialog Fig. 4-25: Blockview dialog - Selectable Routing Note that each drop-down menu to the left lists only the installed firmware applications supported by the block. The first (uppermost) "BB Generator" supports the first instance of generator applications, the second "BB Generator"...
Page 140: System Messages
Basic Instrument Functions R&S ® CMW270 System Messages Reconfiguring a signal path for a specific application 1. Select a block to the left supporting the firmware application to be configured. Example: For the first instance of a measurement select the uppermost "BB Mea- surement"...
Page 141: System Information
Basic Instrument Functions R&S ® CMW270 System Messages System Information System information boxes describe the effects of an action that is about to be per- formed. The information box still allows you to "Cancel" the action. Fig. 4-27: System information System information boxes use different icons, depending on the consequences of the performed action.
Page 142: Remote Control
Remote Control R&S ® CMW270 Remote Control Operation 5 Remote Control This chapter provides instructions on how to set up the tester for remote control, a gen- eral introduction to remote control of programmable instruments, and the description of the tester's remote control concept. For reference information about all remote control commands implemented by the instrument, complemented by comprehensive programming examples, refer to section "Command Reference"...
Page 143 Remote Control R&S ® CMW270 Remote Control Operation Table 5-1: Remote control interfaces and protocols Inter- Remarks Protocols, VISA resource string face HiSLIP protocol The LAN REMOTE connector is located on the rear panel. "TCPIP[board]::host address[::HiSLIP device name[,HiSLIP port]][::INSTR]" The HiSLIP device name for sub-instrument n equals hislip<n-1>.
Page 144: Drivers For Graphical Programming Interfaces
Remote Control R&S ® CMW270 Remote Control Operation LAN connection Remote control via LAN requires a VISA installation but no additional hardware at the controller. VISA provides the TCPIP interface type and several protocol types to com- municate with LAN-connected devices. USB connection A USB connection requires the VISA library to be installed.
Page 145: Switching Between Manual And Remote Control
Remote Control R&S ® CMW270 Remote Control Operation 1. Connect your R&S CMW270 to the controller or to the home/company network using the LAN REMOTE connector at the rear panel. 2. Switch on the R&S CMW270, wait until the startup procedure is complete and press the SETUP key.
Page 146 Remote Control R&S ® CMW270 Remote Control Operation The instrument is switched to remote control as soon as it receives a command from the controller. While remote control is active, the instrument settings are optimized for maximum measurement speed. The normal display is "switched off", i.e. it shows a "Remote" dia- log with hotkeys described in the following sections.
Page 147: Local Lockout
Remote Control R&S ® CMW270 Remote Control Operation A "Go To Local" can be useful while a remote program pauses, e.g. to check the cur- rent instrument state on the display. When the program continues sending messages, the R&S CMW270 will switch back to remote control immediately. Local lockout You can prevent the instrument from returning to manual control using a Local Lockout Message:...
Page 148: Multiple Channels For Remote Access
Remote Control R&S ® CMW270 Remote Control Operation For a detailed description of the LXI remote trace see chapter 5.9.4, "SCPI Remote Trace", on page 201. Remote command: TRACe:REMote:MODE:DISPlay:... chapter 6.3.6, "Tracing the Remote Control Interface", on page 219 5.1.5 Multiple Channels for Remote Access Several remote channels can be used simultaneously.
Page 149: Messages
Remote Control R&S ® CMW270 Messages Examples for channel-dependent registers The Event Status Register (ESR) is similar to the EVENt part of an SCPI register; it indicates instrument events. This register is channel dependent and cleared upon reading it. The Event Status Enable (ESE) register can be programmed individually for different remote channels.
Page 150: Scpi Command Structure And Syntax
Remote Control R&S ® CMW270 Messages ● Commands are messages the controller sends to the instrument. They operate the device func- tions and request information. ● Device responses are messages the instrument sends to the controller after a query. They can con- tain measurement results, instrument settings and information on the instrument status.
Page 151 Remote Control R&S ® CMW270 Messages The following table shows some examples. For a comprehensive list refer to Common Commands. Command Description *RST RESET, resets the sub-instrument. *ESE 253 EVENT STATUS ENABLE, sets the bits of the event status enable regis- ters.
Page 152 Remote Control R&S ® CMW270 Messages Special characters ● | A vertical stroke in the parameter list characterizes alternative parameter settings. Only one of the parameters separated by | must be selected. Example: The following command has three alternative settings: ROUTe:GPRF:GENerator:SCENario:SALone RF1O | RF1C | RF2C ●...
Page 153 Remote Control R&S ® CMW270 Messages with <Boolean> = ON | OFF possible command syntax: SOURce:GPRF:GENerator:STATe ON Numeric suffixes Symbols in angular brackets (<ch>, , <n>,...) denote numeric suffixes. Numeric suf- fixes have to be replaced by integer numbers to distinguish various items of the same type.
Page 154 Remote Control R&S ® CMW270 Messages mand belongs to the SOURce system and defines the frequency of the GPRF genera- tor signal. 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.
Page 155 Remote Control R&S ® CMW270 Messages ● Boolean values are returned as 0 (for OFF/FALSE) and 1 (for ON/TRUE). Possible exceptions to this rule are reported in the command reference description. Example: SENSe:BASE:REFerence:FREQuency:LOCKed? Response: 1 ● Text (character data) is returned in short form (see also next section). Example: SOURce:GPRF:GENerator:BBMode? Response: DTON (for DTONe, dual tone) 5.2.4.5...
Page 156 Remote Control R&S ® CMW270 Messages Unless it is explicitly stated in the command description you can use the special numeric parameters described above for all commands of the R&S CMW270. Other special parameters are generally not supported. Boolean Parameters Boolean parameters represent two states.
Page 157: R&S Cmw Command Structure
Remote Control R&S ® CMW270 R&S CMW Command Structure Overview of Syntax Elements Element Usage The colon separates the keywords of a command. In a command line the separating semi- colon marks the uppermost command level. The semicolon separates two commands of a command line. It does not alter the path. The comma separates several parameters of a command.
Page 158: General Command Structure
Remote Control R&S ® CMW270 R&S CMW Command Structure logical software entity the command is assigned to, eliminating the need of addressing the entities (e.g. firmware applications) separately. 5.3.1 General Command Structure The instrument-control command headers for the R&S CMW270 firmware applications consist of four parts.
Page 159: Measurement Contexts And Views
Remote Control R&S ® CMW270 R&S CMW Command Structure ● MEASurement: Measurement application, provides a set of measurements for a specific network standard or general purpose tests. Example: The GPRF measure- ment application comprises different RF measurements, e.g. Power, External Power Sensor etc.
Page 160: Control Of The Instrument
Remote Control R&S ® CMW270 Control of the Instrument Example for context-specific commands The following measurement control command affects the EPSensor measurement context (external power sensor measurement) in the GPRF:MEASurement firmware application: INITiate:GPRF:MEASurement:EPSensor The EPSensor measurement context appears as a fourth-level mnemonic. No view type is specified.
Page 161: Command Synchronization
Remote Control R&S ® CMW270 Control of the Instrument Generator control commands are of the following type (see also Firmware Applica- tions): SCPI subsystem <Application>, e.g. Generator instance State SOURce :GPRF :GENerator :STATe ON | OFF Example: SOURCe:GPRF:GENerator:STATe ON | OFF SOURce:<Application>:GENerator:STATe ON Starts the generator, reserves all necessary hardware and system resources and changes to the generator state "PENDing", then "ON".
Page 162: Measurement Control
Remote Control R&S ® CMW270 Control of the Instrument SOURce:<Application>:GENerator:STATe OFF Switches the generator off, releases the hardware resources for other generators, and changes to the generator state "OFF". If the generator is already turned off the com- mand has no effect. 5.4.2 Measurement Control The R&S CMW270 provides a variety of measurements (also termed measurement contexts) for each of the supported network standards or general purpose applications.
Page 163 Remote Control R&S ® CMW270 Control of the Instrument Measurement control commands are of the following type (see also Firmware Applica- tions): SCPI sub- <Application>, Measurement instance Context system e.g. INITiate :WIMax | :MEASurement :POWer ABORt :GPRF :EPSensor STOP :MEValuation (depending on <Application>) Example: INITiate:GPRF:MEASurement:POWer INITiate:<Application>:MEASurement...
Page 164: Stop: :Measurement
Remote Control R&S ® CMW270 Control of the Instrument tion, this firmware application is released in order to start the measurement; see Resource and Path Management. If a previously initiated measurement (which may be of the same type) is still running, the new measurement remains in the "PENDing"...
Page 165 Remote Control R&S ® CMW270 Control of the Instrument Substate Description ACTive Resources allocated, acquisition of results in progress but not complete No substate (invalid) Querying substates The main measurement state and the substates can be queried using FETCh:<FWA>:<context>:STATe:ALL? where <FWA> denotes the firmware appli- cation and <context>...
Page 166 Remote Control R&S ® CMW270 Control of the Instrument Manual and remote control In contrast to other instrument settings, the repetition modes in manual and remote control are independent and do not overwrite each other. The default repetition mode in manual control is Continuous (observe results over an extended period of time), the default mode in remote control is Single-Shot (perform one measurement and retrieve results).
Page 167 Remote Control R&S ® CMW270 Control of the Instrument Simplified statistics Some measurement contexts provide simplified statistical settings. Refer to the mea- surement and remote control description for details. 5.4.2.4 Retrieving Measurement Results The results of a measurement can be retrieved by means of FETCh...? or READ...? queries.
Page 168 Remote Control R&S ® CMW270 Control of the Instrument Repeated FETCh...? commands It is possible to use repeated FETCh...? commands without re-starting the measure- ment, e.g. in order to monitor the variation in time of a measured quantity in continuous measurement mode.
Page 169 Remote Control R&S ® CMW270 Control of the Instrument for Single Results. A typical application is the limit check, where the error indicators are set to one of the following values: ● OK: The result is located within the limits or no limit has been defined/enabled for this result.
Page 170 Remote Control R&S ® CMW270 Control of the Instrument FETCh:<FWA>:<Context>:TRACe:<View>:<Statistics>...? READ:<FWA>:<Context>:TRACe:<View>:<Statistics>...? e.g. FETCh:GSM:MEASurement:MEValuation:EVMagnitude? FETCh:GSM:MEASurement:MEValuation:TRACe:EVMagnitude:CURRent? The <View> mnemonic is used in multi evaluation measurements where it distin- guishes different subsets of results. For detailed information about the returned values refer to the command reference description. See also Multi Evaluation Measurements.
Page 171: Signaling Generator Control
Remote Control R&S ® CMW270 Control of the Instrument Example: READ:WIMax:MEASurement:MEValuation:EVM:DATA:AVERage? Retrieving results for disabled views In some measurements it is possible to disable individual views and results in order to gain measurement speed. The READ...? and FETCh...? queries act differently on disabled views: ●...
Page 172 Remote Control R&S ® CMW270 Control of the Instrument Signaling generator control commands are of the following type (see also Firmware Applications): SCPI subsystem <Application>, e.g. Generator instance State SOURce :GSM :SIGNaling :CELL:STATe ON | OFF Example: SOURCe:GSM:SIGNaling:CELL:STATe ON | OFF The :CELL mnemonic is omitted in some signaling applications.
Page 173: Reliability And Error Indicators
Remote Control R&S ® CMW270 Control of the Instrument Command synchronization Before you use the generator signal, use the query SOURce:<Application>:SIGNaling:CELL:STATe:ALL? to ensure that the signaling generator is turned on and that the cell signal is available (response: ON, ADJ; see below). SOURce:<Application>:SIGNaling:CELL:STATe OFF Switches the generator off, releases the hardware resources for other generators, and changes to the generator state "OFF".
Page 174 Remote Control R&S ® CMW270 Control of the Instrument Reliability indicator values The reliability indicator has one of the following values: ● 0 (OK): Measurement values available, no error detected. ● 1 (Measurement Timeout): The measurement has been stopped after the (configurable) measurement time- out.
Page 175 Remote Control R&S ® CMW270 Control of the Instrument ● 21 (Call Lost): For measurements: The measurement was interrupted because the signaling con- nection to the DUT was lost. For DAU IMS service: The voice over IMS call was lost. ●...
Page 176 Remote Control R&S ® CMW270 Control of the Instrument Indicates a firmware or software error. If you encounter this error for the first time, restart the instrument. If the error occurs again, consider the following hints: – Firmware errors can often be repaired by restoring the factory default settings. To restore these settings, restart your instrument and press the "Factory Default"...
Page 177: Signal Path Settings
Remote Control R&S ® CMW270 Control of the Instrument Returned value Meaning Description Underflow Measurement result available, however, the accuracy of the result may be impaired because the input signal level was too Invalid Measurement was performed but a single result is invalid, e.g. because it cannot be measured under the special conditions of the measurement Not available...
Page 178 Remote Control R&S ® CMW270 Control of the Instrument ROUTe commands changed in V2.0.10 Routing commands of the type ROUTe:<Application>:<Instance>:RFSettings:CONNector are no longer supported for software versions ≥ V2.0.10. The old routing commands select only an RF connector but no RX/TX module and must no longer be used. Furthermore the selection of connectors RF 3 COM, RF 3 OUT and RF 4 COM has changed in software version V2.0.10.
Page 179 Remote Control R&S ® CMW270 Control of the Instrument You may also use the following rules and the subsequent sections to determine the supported signal paths: ● One frontend provides three RF connectors at the front panel: either RF 1 COM + RF 1 OUT + RF 2 COM or RF 3 COM + RF 3 OUT + RF 4 COM.
Page 180 Remote Control R&S ® CMW270 Control of the Instrument application these hardware units are baseband generator boards, baseband measurement boards or signaling units. – The number of active software licenses limits the number of instances that can be run in parallel. 5.4.5.2 RF Connector Values The following list contains all parameter values generally available for selection of an...
Page 181 Remote Control R&S ® CMW270 Control of the Instrument 5.4.5.4 Two RF Paths, Two Frontends, Flexible Link, One Sub-Instrument This section applies to an instrument with two RF paths, two frontends, a flexible link (R&S CMW-S550B/M) and two instances per firmware application. All resources are grouped in one sub-instrument.
Page 182 Remote Control R&S ® CMW270 Control of the Instrument Instance 1 Instance 2 RF1C RF3C *RST connectors TX1, RX1 TX2, RX2 *RST TX/RX 5.4.5.6 Two RF Paths, Two Frontends, Two Sub-Instruments This section applies to an instrument with two RF paths, two frontends and two instan- ces per firmware application.
Page 183 Remote Control R&S ® CMW270 Control of the Instrument Instance 1 Instance 2 RF1C RF2C *RST connectors TX1, RX1 TX2, RX2 *RST TX/RX 5.4.5.8 Two RF Paths, One Frontend, Two Sub-Instruments This section applies to an instrument with two RF paths, one advanced frontend and two instances per firmware application.
Page 184: Resource And Path Management
Remote Control R&S ® CMW270 Control of the Instrument Instance 1 Instance 2 Instance 3 Instance 4 TX1, TX3 (for RF1/RF2 connectors only) TX module TX2, TX4 (for RF3/RF4 connectors only) RX module RX1, RX3 (for RF1/RF2 connectors only) RX2, RX4 (for RF3/RF4 connectors only) RF1C RF3C RF2C...
Page 185 Remote Control R&S ® CMW270 Control of the Instrument point in the test setup. Conflicts between different tasks may occur if they rely upon the same system resources. The Resource and Path Management (RPM) of the R&S CMW270 represents a control mechanism for conflicting tasks, deciding whether and for how long a running task will persist.
Page 186 Remote Control R&S ® CMW270 Control of the Instrument Generator and measurement in conflict Signaling applications behave like generators and must be turned off explicitly. Two non-conflicting measurements, executed in parallel RPM acts on sub-instrument level If the R&S CMW270 is split into several sub-instruments, each of them is equipped with independent hardware and software resources in order to run the tasks assigned to it.
Page 187 Remote Control R&S ® CMW270 Control of the Instrument Example for queued conflicting measurements Command Comment *RST Start measurement 1 in single-shot mode (default setting for remote control) INITiate:<FWA>:<Meas1> INITiate:<FWA>:<Meas2> Start a new measurement 2. The new measurement will be queued.
Page 188 Remote Control R&S ® CMW270 Control of the Instrument Command Comment FETCh:<FWA>:<Meas2>:STATe:ALL? Query the measurement substates of measurement 2. The response (RUN, ADJ, ACT) indicates that measure- ment 2 is now active. CONFigure:<FWA>:<Meas1>: Query the repetition mode of measurements 1 and 2. REPetition? Measurement 1 is in single-shot mode (SING), measure- ment 2 is still in continuous mode (CONT).
Page 189: Command Processing
Remote Control R&S ® CMW270 Command Processing Example 1: Conflicting generator and signaling applications Command Comment SOURce:<Gen_FWA 1> ON Switch on the first generator and query its state. After hard- ware adjustment, the response is ON, i.e. the generator is run- SOURce:<Gen_FWA 1>? ning and an output signal is available.
Page 190: Input Unit
Remote Control R&S ® CMW270 Command Processing The instrument model consists of the following components. ● Input Unit.......................174 ● Command Recognition..................174 ● Data Base and Instrument Hardware..............175 ● Status Reporting System..................175 ● Output Unit......................176 5.5.1 Input Unit The input unit receives commands character by character from the controller and col- lects them in the input buffer.
Page 191: Data Base And Instrument Hardware
Remote Control R&S ® CMW270 Command Processing e.g. a GET (Group Execute Trigger) is only executed after the commands received before. Each recognized command is immediately transferred to the data set but not executed immediately. The command recognition detects syntax errors in the commands and transfers them to the status reporting system.
Page 192: Output Unit
Remote Control R&S ® CMW270 Status Reporting System 5.5.5 Output Unit The output unit collects the information requested by the controller, which it receives from the data set management. It processes it according to the SCPI rules and makes it available in the output buffer. If the information requested is longer, it is made availa- ble "in portions"...
Page 193: Overview Of Status Registers
Remote Control R&S ® CMW270 Status Reporting System SRE register The service request enable register SRE can be used as ENABle part of the STB if the STB is structured according to SCPI. By analogy, the ESE can be used as the ENABle part of the ESR.
Page 194 Remote Control R&S ® CMW270 Status Reporting System The sum bit is obtained from the EVENt and ENABle part for each register. The result is then entered into a bit of the CONDition part of the higher-order register. The instrument automatically generates the sum bit for each register. Thus an event can lead to a Service Request throughout all levels of the hierarchy.
Page 195: Contents Of The Status Registers
Remote Control R&S ® CMW270 Status Reporting System ● NTR bit = 1: the EVENt bit is set. ● NTR bit = 0: the EVENt bit is not set. This part can be overwritten and read at will. Reading the PTRansition register is non- destructive.
Page 196 Remote Control R&S ® CMW270 Status Reporting System The STatus Byte (STB) is linked to the Service Request Enable (SRE) register on a bit- by-bit basis. ● The STB corresponds to the EVENt part of an SCPI register, it indicates general instrument events.
Page 197 Remote Control R&S ® CMW270 Status Reporting System Related common commands The IST flag is queried using the command *IST?. The PPE can be set using *PRE / *XPRE and read using command *PRE? / *XPRE?. See also Common Commands 5.6.3.3 ESR and ESE The Event Status Register (ESR) indicates general instrument states.
Page 198: Status:operation
Remote Control R&S ® CMW270 Status Reporting System Bit No. Meaning User Request This bit is set on pressing the LOCAL key, i. e. when the instrument is switched over to manual control. Power On (supply voltage on) This bit is set when the instrument is switched on. Related common commands The Event Status Register (ESR) can be queried using *ESR? / *XESR?.
Page 199 Remote Control R&S ® CMW270 Status Reporting System Fig. 5-1: STATus:OPERation register hierarchy Each single status register in the figure above consists of five parts as described in section Structure of an SCPI Status Register. The following simplified presentation is used: User Manual 1173.9470.02 ─...
Page 200 Remote Control R&S ® CMW270 Status Reporting System Fig. 5-2: Legend for figure above The following table lists the assignment of network standards (and GPRF, DAU) to the bits of the register STATus:OPERation:TASK:A. The mnemonics used to indicate the network standards are identical to the mnemonics used in remote commands (see Firmware Applications).
Page 201 Remote Control R&S ® CMW270 Status Reporting System Bit No. MEASurement SIGNaling GENerator EPSensor, SRS, THRoughput BLER not used IQRecorder not used not used FFTSanalyzer not used not used The status registers at the lowest level indicate state transitions to the following states: Table 5-4: Bit definition for application register MEASurement / Signaling State GENerator State...
Page 202: Application Of The Status Reporting System
Remote Control R&S ® CMW270 Status Reporting System For command descriptions refer to: ● chapter 6.3.13.2, "STATus:OPERation (Elementary Commands)", on page 272 ● chapter 6.3.13.3, "STATus:OPERation (Extended Commands)", on page 280 ● chapter 6.3.13.4, "STATus:OPERation (Overall Evaluation)", on page 287 5.6.3.5 STATus:QUEStionable The STATus:QUEStionable register indicates whether the data currently being...
Page 203 Remote Control R&S ® CMW270 Status Reporting System 2. Set bit 5 in the SRE (ESB). 3. Insert *OPC in the command sequence As soon as all commands preceding *OPC have been completed, the instrument gen- erates an SRQ. Example: Indicate measurement state via SRQ In this example the reporting path is enabled for a specific measurement state, so that an SRQ will be generated when this state is reached.
Page 204 Remote Control R&S ® CMW270 Status Reporting System The serial poll is mainly used to obtain a fast overview of the state of several instru- ments connected to the controller. 5.6.4.3 Parallel Poll In a parallel poll, up to eight instruments are simultaneously requested by the controller by means of a single command to transmit 1 bit of information each on the data lines, i.e., to set the data line allocated to each instrument to a logical "0"...
Page 205: Reset Values Of The Status Reporting System
Remote Control R&S ® CMW270 Status Reporting System 5.6.4.5 Error Queue Each error state in the instrument leads to an entry in the error queue. The entries of the error queue are detailed plain text error messages that can be queried via remote control using SYSTem:...
Page 206: Regular Expressions
Remote Control R&S ® CMW270 Status Reporting System 5.6.6 Regular Expressions Some remote control commands (for examples see STATus:OPERation (Overall Eval- uation)) support the application of filters. A filter allows to limit the results returned by the command (or the objects affected by the command) to a specific set of strings. This set can be defined via a regular expression without having to list all elements.
Page 207: Command Macros
Remote Control R&S ® CMW270 Command Macros Abbreviation Matches Any alpanumeric character ([a-zA-Z0-9]) White space (blank) Any alphabetic character ([a-zA-Z]) Any decimal digit ([0-9]) Any hexadecimal digit ([a-fA-F0-9]) A simple word ([a-zA-Z]+) An integer ([0-9]+) 5.7 Command Macros A macro is a sequence of remote commands which can be referenced in a remote con- trol program.
Page 208: Macro Programming Examples
Remote Control R&S ® CMW270 Command Macros MMEMory: S TORe: Macros present in the RAM can be saved to macro files using MACRo MMEMory: L OAD: M ACRo . Macro files can be loaded into the RAM using Macro files can also be recorded. Start macro recording via SYSTem:...
Page 209 Remote Control R&S ® CMW270 Command Macros // ***************************************************************************** *RMC 'SetFrequency' *PMC *LMC? Macros with parameters // ***************************************************************************** // Reset the instrument. // Define a macro to set the GPRF generator frequency and level to arbitrary // values using macro parameters. // Execute the macro and check the results.
Page 210: Response Buffers
Remote Control R&S ® CMW270 Response Buffers // Load the recorded macro and check its contents. // ***************************************************************************** SYSTem:RECord:MACRo:FILE:STARt 'D:/macros/GPRF.txt' SOURce:GPRF:GENerator:RFSettings:FREQuency 1 GHz SOURce:GPRF:GENerator:RFSettings:EATTenuation 2 SOURce:GPRF:GENerator:RFSettings:LEVel -70 SYSTem:RECord:MACRo:FILE:STOP MMEMory:LOAD:MACRo 'RF_Settings1', 'D:/macros/GPRF.txt' *GMC? 'RF_Settings1' 5.8 Response Buffers A response buffer is a region of memory in the R&S CMW270's RAM used to store device responses, in particular measurement data, which the R&S CMW270 generates while executing queries.
Page 211: Buffer Programming Example
Remote Control R&S ® CMW270 Response Buffers delete the buffer during program execution. The buffer contents can be read line by line. The syntax of buffer commands follows general R&S CMW270 syntax rules; see chapter 6.3.2, "Buffer Commands", on page 211. Memory size The buffer size must not exceed 16 MB.
Page 212: Lxi Configuration
Remote Control R&S ® CMW270 LXI Configuration FETCh:BASE:BUFFer:LINEcount? 'Frequency_Buffer' DELete:BASE:BUFFer 'Frequency_Buffer' FETCh:BASE:BUFFer:LINEcount? 'Frequency_Buffer' SYSTem:ERRor? 5.9 LXI Configuration LAN eXtensions for Instrumentation (LXI) is an instrumentation platform for measuring instruments and test systems that is based on standard Ethernet technology. LXI is intended to be the LAN-based successor to GPIB, combining the advantages of Ether- net with the simplicity and familiarity of GPIB.
Page 213: Lxi Browser Interface
Remote Control R&S ® CMW270 LXI Configuration The R&S CMW270 supports some LXI class C features, but it is not LXI class C com- pliant (e.g. LCI mechanism not implemented). In addition to general class C features, it provides additional functionality, e.g. tracing of remote SCPI commands, see Browser Interface.
Page 214: Lan Configuration
Remote Control R&S ® CMW270 LXI Configuration – "Home" opens the instrument home page. – LAN Configuration allows to configure LAN parameters and to initiate a ping. – "Status" displays information about the LXI status of the instrument. ● "Help" –...
Page 215 Remote Control R&S ® CMW270 LXI Configuration The "TCP/IP Mode" configuration field controls how the IP address for the instrument gets assigned (see also System Settings). For the manual configuration mode, the static IP address, subnet mask, and default gateway are used to configure the LAN. The automatic configuration mode uses DHCP server or Dynamic Link Local Address- ing (Automatic IP) to obtain the instrument IP address.
Page 216 Remote Control R&S ® CMW270 LXI Configuration The advanced LAN configuration parameters are used as follows: ● "Negotiation": The negotiation configuration field provides different Ethernet speed and duplex mode settings. In general, the Auto Detect mode is sufficient. ● "ICMP Ping": If you disable this setting, the instrument does not answer ping requests.
Page 217: Scpi Remote Trace
Remote Control R&S ® CMW270 LXI Configuration 5.9.4 SCPI Remote Trace The remote trace functionality allows to trace input and output strings at the remote control interface of the R&S CMW270. A recorded trace (message log) can be evaluated directly in the dialog. Use the high- lighting and navigation functions provided by the lower toolbar to locate error mes- sages and messages containing arbitrary search strings.
Page 218 Remote Control R&S ® CMW270 LXI Configuration Toolbars The toolbar at the top of the dialog provides basic settings and functions. ● live mode / logging: If logging is switched on, messages are traced. They are stored in an internal database and can be displayed upon request, using the refresh button (live mode off) or they can be displayed automatically (live mode on).
Page 219: Monitoring The Instrument Via Snmp
Remote Control R&S ® CMW270 Monitoring the Instrument via SNMP – E = error message, highlighted by red color – T = execution time, i.e. time required by the instrument to process the com- mand internally ● I: number of the sub-instrument 5.10 Monitoring the Instrument via SNMP The R&S CMW270 is equipped with an SNMP agent.
Page 220: Command Reference - Base Software
Command Reference - Base Software R&S ® CMW270 Common Commands 6 Command Reference - Base Software This chapter lists all commands for the R&S CMW270 platform. Contents of this chapter The commands listed in this chapter control the R&S CMW270 platform. Application- specific commands (e.g.
Page 221 Command Reference - Base Software R&S ® CMW270 Common Commands Command Parameters/ Short Description Remarks *ESR? – Event – Returns the contents of the event status register in decimal Status Read form (0 to 255) and subsequently sets the register to zero. query only Alternatively *XESR? can be used to return the result as comma separated list of mnemonics enclosed in brackets.
Page 222: Emulation Codes
Command Reference - Base Software R&S ® CMW270 Emulation Codes Command Parameters/ Short Description Remarks *SAV – SAVe 0...99 Stores the current instrument settings under the specified num- ber in an intermediate memory. The settings can be recalled no query, not IEEE using the command *RCL with the associated number.
Page 223: Instrument-Control Commands
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Code Meaning Effect on the instrument &ABO (Abort) Aborts processing of the commands just received and sets the command processing software to a defined initial state. Does not &BRK (Break) change the instrument setting.
Page 224 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands R&S CMW270-specific command properties The following macro command properties differ from SCPI stipulations: ● The *RST state of *EMC is OFF. Macro execution must be enabled deliberately for every remote connection. ●...
Page 225 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands *EMC <Boolean> Enables or disables the execution of all macros that are defined for the active remote connection. Note: In contrast to SCPI specifications, macro execution is disabled by default. Parameters: <Boolean>...
Page 226 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Firmware/Software: V2.1.10 *PMC Deletes all macros of the active remote connection. Example: Macro Programming Examples Usage: Event Firmware/Software: V2.1.10 *RMC '<MacroLabel>' Deletes a macro identified by its <MacroLabel>. Parameters: '<MacroLabel>' String parameter, used to execute the macro and to reference it in other macro commands (e.g.
Page 227: Buffer Commands
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Parameters: '<MacroLabel>' String parameter, used to execute the loaded macro and to ref- erence it in other macro commands (e.g. *DMC, *GMC?, *RMC). '<MacroFile>' String parameter specifying path and filename of the destination file (on the instrument) Example: Macro Programming Examples...
Page 228 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands CLEar:BASE:BUFFer '<BufferLabel>' Clears the contents of a buffer, maintaining the buffer for further program execution. DELete: B ASE: B UFFer to delete the buffer. Parameters: '<BufferLabel>' String parameter, used to identify the buffer in all buffer com- mands Example: Buffer Programming Example...
Page 229 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Query parameters: '<BufferLabel>' String parameter, used to identify the buffer in all buffer com- mands <LineNo> Line of results in the buffer Return values: <LineContents> Returned line contents Example: Buffer Programming Example Usage: Query only Firmware/Software: V2.1.10...
Page 230: High Resolution Timer
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Firmware/Software: V2.1.10 6.3.3 High Resolution Timer After execution of a command it may be required to wait a well defined time before pro- ceeding with command script processing, e.g. because the DUT needs some time to stabilize after a modification.
Page 231: Error Queue
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands SYSTem:TIME:HRTimer:ABSolute:SET Example: Set a timestamp with the current system time. SYSTem:TIME:HRTimer:ABSolute:SET? Query the timestamp. Possible result: 2011,3,20,12,5,30,999 Firmware/Software: V2.1.10 SYSTem:TIME:HRTimer:RELative <Timeout> This command starts a timer. After the specified timeout, an OPC is generated. When the timer expires, "Operation Complete"...
Page 232 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Usage: Query only SCPI confirmed Firmware/Software: V1.0.0.4 SYSTem:ERRor:CODE:ALL? Queries and at the same time deletes all entries in the error queue. The command returns the error numbers without any description of the errors. Positive error numbers are instrument-dependent.
Page 233: Reset And Preset
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands SYSTem:ERRor[:NEXT]? Queries and at the same time deletes the oldest entry in the error queue. Operation is identical to that of STATus: Q UEue[: N EXT]? The entry consists of an error number and a short description of the error. Positive error numbers are instrument-dependent.
Page 234 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Usage: Event Firmware/Software: V1.0.5.3 SYSTem:PRESet ['<Application>'] SYSTem:RESet ['<Application>'] A PRESet sets the parameters of the current sub-instrument to default values suitable for local/manual interaction. A RESet sets them to default values suitable for remote operation.
Page 235: Tracing The Remote Control Interface
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Group '<Application>' strings without instance 'LTE eNodeB Meas' 'LTE Meas' (for LTE UE Measurements) 'LTE Sig' TD-SCDMA 'TD-SCDMA Meas' 'TD-SCDMA Sig' WCDMA 'WCDMA Gen' 'WCDMA Meas' 'WCDMA Sig' WiMAX 'WiMAX Meas' 'WiMAX Sig' WLAN 'WLAN Meas'...
Page 236 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands TRACe:REMote:MODE:FILE<inst>:ENABle <Enable> Enable or disable tracing of the remote interface to a file for the specified sub-instru- ment. Suffix: <inst> 1..2 Selects the sub-instrument Parameters: <Enable> Boolean value (ON | OFF | 1 | 0) Default value: OFF TRACe:REMote:MODE:FILE1:ENABle ON Example:...
Page 237 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands TRACe:REMote:MODE:FILE<inst>:FORMat <Format> Specifies the format of the target file for tracing of the remote interface for the specified sub-instrument. The trace can be stored as ASCII file or as XML file. Suffix: <inst>...
Page 238 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands TRACe:REMote:MODE:FILE1:SIZE 100000000 Example: Set 100 MB as maximum size for the trace file of sub-instrument Firmware/Software: V2.0.10 TRACe:REMote:MODE:FILE<inst>:STARtmode <StartMode> Specifies whether tracing shall be started automatically or manually. Suffix: <inst> 1..2 Selects the sub-instrument Parameters:...
Page 239: Mass Memory Commands
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands TRACe:REMote:MODE:DISPlay:ENABle <Enable> Enables or disables the display of the SCPI remote trace. Two modes are available when the display is enabled: a live mode and an analysis mode. Parameters: <Enable> ANALysis | LIVE | OFF ANALysis: stop tracing to analyse already traced messages LIVE: trace messages and display them...
Page 240 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands ● The use of wildcards ? and * is only allowed if explicitly stated for a command. Wildcards are only allowed in the last component of the string. Example: 'archive\*test*' allowed, 'archi*\test1.txt' not allowed ●...
Page 241 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands MMEMory:ALIases? Returns the defined alias entries and the assigned directories. These settings are pre- defined and can not be configured. MMEM:ALIases? Example: Possible response: "@SAVE","D:\Rohde-Schwarz\CMW\Data\Save", "@PRINT","D:\Rohde-Schwarz\CMW\Data\Print", "@USERDATA","D:\Rohde-Schwarz\CMW\Data\" Example: When you specify a file destination, an alias can be used instead of the corresponding path.
Page 242 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands MMEM:ATTR? 'D:\USER\DATA' Example: Returns attribute information for all files and subdirectories of directory D:\USER\DATA. Possible Response: ".,","..,","myfile.txt,RA","mysubdirectory," Firmware/Software: V1.0.0.4 MMEMory:CATalog? ['<DirectoryName>'][,<Mode>] Returns information on the contents of the current or of a specified directory. Parameters: '<DirectoryName>' String parameter to specify the directory.
Page 243 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands MMEM:CAT? Example: Possible response: 156673,5195137024, ".,DIR,0","..,DIR,0", "SaveFile001.xml,BIN,78335", "SaveFile002.xml,BIN,78338" MMEM:CAT? 'D:\User\Data\*.jpg' Example: Possible response: 300928,511337022, "fig1.jpg,BIN,259395", "screen.jpg,BIN,41533" Considers all jpg files located in directory D:\User\Data. MMEM:CAT? 'D:\User\Data\*.jpg',ALL Example: Possible response: 300928,511337022, "fig1.jpg,BIN,259395,14-01-2011 10:54,A", "screen.jpg,BIN,41533,10-01-2011 11:13,AR"...
Page 244 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands MMEMory:CDIRectory ['<DirectoryName>'] Changes the current directory for mass memory storage. If '<DirectoryName>' is omitted, the current directory is set to '\'. If '<DirectoryName>' contains not only a directory, but also a drive letter or server name, the command MMEM:MSIS is also executed automatically.
Page 245 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Parameters: <Data> <dblock> Data in 488.2 block data format. The delimiter EOI must be selected to achieve correct data transfer. See also Block Data Format. Parameters for setting and query: '<FileName>' String parameter to specify the name of the file.
Page 246 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands MMEMory:DCATalog:LENGth? ['<DirectoryName>'] Returns the number of subdirectories of the current or of a specified directory. The number includes the directory strings "." and ".." so that it corresponds to the number of strings returned by the MMEMory:...
Page 247 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands MMEMory:LOAD:ITEM '<ItemName>', '<FileSource>' Executes a partial recall, i.e. restores a selected part of a save file. You can restore all settings of a specific application instance, for example of the LTE signaling application instance 1.
Page 248 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Group <Application> Examples for '<ItemName>' Data Appl. Measurements 'Data Appl. Measurements2' FM Stereo Radio FM Stereo Radio Meas 'FM Stereo Radio Meas2' GPRF GPRF Gen 'GPRF Gen2' GPRF Meas 'GPRF Meas' GSM Gen 'GSM Gen' GSM Meas...
Page 249 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Usage: Event SCPI confirmed Firmware/Software: V1.0.0.4 MMEMory:MDIRectory '<DirectoryName>' Creates a new directory. If required, an entire path consisting of several subdirectories is created. Parameters: '<DirectoryName>' String parameter to specify the directory. Wildcards are not allowed.
Page 250 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands MMEMory:MSIS ['<StorageUnit>'] Changes the default storage unit (drive or server) for mass memory storage. If '<StorageUnit>' is omitted, the storage unit is set to D:. When the default storage unit is changed, it is checked whether the current directory (see MMEMory:...
Page 251 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Firmware/Software: V1.0.0.4 MMEMory:SAV '<FileDestination>' Stores the current instrument settings to the specified file. This command has the same effect as the combination of *SAV and MMEMory:STORe:STATe. Parameters: '<FileDestination>' String parameter specifying path and filename of the target file. Wildcards are not allowed.
Page 252 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Usage: Event Firmware/Software: V3.0.10 Table 6-2: Examples for '<ItemName>' strings Group <Application> Examples for '<ItemName>' 1xEV-DO 1xEV-DO Meas '1xEV-DO Meas' 1xEV-DO Sig '1xEV-DO Meas2:MEV:LIST' '1xEV-DO Sig' Audio Audio 'Audio2' Bluetooth Bluetooth Meas 'Bluetooth Meas2' Bluetooth Sig...
Page 253: Hardcopy Commands
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands MMEMory:STORe:STATe <MemoryNumber>, '<FileDestination>' Stores the instrument settings from the specified internal memory to the specified file. To store the current instrument settings to a file, use first *SAV <MemoryNumber> to store the settings to the memory and then this command to store the settings from the memory to a file.
Page 254 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands HCOPy:DEVice:FORMat PNG Example: Screenhots are created in PNG format. Firmware/Software: V3.0.10 HCOPy:INTerior:FILE '<FileName>' HCOPy:FILE '<FileName>' Captures a screenshot and stores it to the specified file. HCOPy:FILE captures the entire window, HCOPy:INTerior:FILE only the interior of the window.
Page 255: Frequency-Dependent Correction
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands 6.3.9 Frequency-Dependent Correction The commands described in this section administrate and activate/deactivate correc- tion tables for frequency-dependent attenuation/gain. For additional information con- cerning the usage of the tables refer to RF Path Settings (Generators) Connection Control...
Page 256 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Reset / Preset of base settings Please note that a reset or preset of the base settings deactivates all correction tables. A reset or preset of a sub-instrument or application does not affect the correction tables.
Page 257: Configure:base:fdcorrection:ctable:create
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Setting parameters: <TableName> String parameter used to identify the table by other commands and to store the table on the hard disk. The string must comply to Windows™ file name conventions, see Mass Memory Com- mands.
Page 258: Configure:base:fdcorrection:ctable:erase
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands CONFigure:BASE:FDCorrection:CTABle:ERASe <TableName>, <Frequency>... Removes one or more selected entries from a correction table. Each table entry con- sists of a frequency value and a correction value. Entries to be removed are selected via their frequency values.
Page 259: Configure:base:fdcorrection:ctable:delete:all
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Setting parameters: <TableName> String parameter identifying the table. To display a list of existing tables use the command CONFigure:BASE:FDCorrection:CTABle:CATalog?. CONFigure:BASE:FDCorrection:CTABle:DELete Example: 'mytable' Usage: Event Firmware/Software: V1.0.5.3 CONFigure:BASE:FDCorrection:CTABle:DELete:ALL Deletes all correction tables for the addressed sub-instrument from the hard disk. Usage: Event Firmware/Software: V2.1.27...
Page 260: Configure:base:fdcorrection:ctable:details
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Query parameters: <TableName> String parameter identifying the table. To display a list of existing tables use the command CONFigure:BASE:FDCorrection:CTABle:CATalog?. <StartIndex> Index number of the first entry to be listed. The first entry of a table has index number 0.
Page 261: Configure:base:fdcorrection:rcl
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Usage: Event Firmware/Software: V2.1.25 CONFigure:BASE:FDCorrection:RCL Loads all correction tables of the addressed sub-instrument from the hard disk into the RAM. This action is performed automatically when the R&S CMW270 application software is started.
Page 262: Configure:fdcorrection:deactivate
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands <Direction> RXTX | RX | TX Specifies the direction to which the correction table shall be applied. RX means input and TX means output. For a pure out- put connector RX is ignored. RXTX: both directions (for output connector only output) RX: input (not allowed for output connector) TX: output...
Page 263: Configure:fdcorrection:usage
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands <Direction> RXTX | RX | TX Specifies the direction for which the tables shall be deactivated. RX means input and TX means output. For a pure output con- nector RX is ignored. RXTX: both directions (for output connector only output) RX: input (not allowed for output connector) TX: output...
Page 264: Setup Commands
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Return values: <RXTableName> String identifying the table assigned to the RX direction. If no table is active, an empty string is returned. For pure output con- nectors the RX string is empty. <TXTableName>...
Page 265 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Parameters: <FontSize> DEF | LRG DEF: Small fonts LRG: Large fonts *RST: SYSTem:BASE:DISPlay:FONTset LRG Example: Select large fonts. Firmware/Software: V1.0.5.3 SYSTem:DISPlay:MONitor <Enable> Turns the built-in display / the external monitor on or off. Parameters: <Enable>...
Page 266 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands SYSTem:COMMunicate:NET:ADAPter "Lan Remote" Example: Selects the "Lan Remote" network adapter. Firmware/Software: V1.0.0.4 SYSTem:COMMunicate:NET:HOSTname? Queries the host name (computer name) of the R&S CMW270. The host name is part of the VISA address string for LAN-based connections. Return values: '<Host>' Host name as string...
Page 267 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Firmware/Software: V1.0.0.4 V3.0.10: support of more than one address SYSTem:COMMunicate:NET:SUBNet:MASK '<Mask>'... Defines the subnet masks to be used for the network adapter addresses. This is only relevant if DHCP is disabled (SYSTem:...
Page 268 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Parameters: <Boolean> -1 | 0 -1: Enabled, automatic configuration 0: Disabled, manual configuration *RST: a *RST does not affect the LAN service settings SYSTem:COMMunicate:NET:DNS:ENABle 0 Example: Disables dynamic/automatic DNS server address configuration. Firmware/Software: V1.0.0.4 SYSTem:COMMunicate:NET:DNS '<Address>'...
Page 269 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Parameters: <Enable> 0 | 1 Behavior during startup: 0: restore previous settings 1: set instrument to its factory default state SYSTem:STARtup:PREPare:FDEFault 1 Example: Set factory default during startup. Firmware/Software: V3.2.20 6.3.10.2 Remote Settings The following commands define the address information for the different remote-control...
Page 270 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands SYSTem:COMMunicate:SOCKet:MODE <Mode> Sets the protocol operation mode for direct socket communication. Suffix: 1..2 Selects the remote channel. Parameters: <Mode> RAW | AGILent | IEEE1174 RAW: no support of control messages, e.g. polling or service request AGILent: emulation codes via control connection (control port) IEEE1174: emulation codes via data connection (data port...
Page 271 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands SYSTem:COMMunicate:NET:HOSTname Example: 'hh346999.domain.net' SYSTem:COMMunicate:SOCKet2:PORT 1500 SYSTem:COMMunicate:SOCKet2:VRESource? Define a host name, set a port and query the VISA resource string of the socket resource (channel 2). The response is 'TCPIP::hh346999.domain.net::1500::SOCKET'. Usage: Query only Firmware/Software: V1.0.5.3 SYSTem:COMMunicate:GPIB[:SELF]:ADDR <AddressNo>...
Page 272 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Suffix: 1..4 (depending on installed options) Selects the remote channel. Return values: '<String>' VISA address string; see example below. *RST: *RST has no effect on the value. The address string depends on the GPIB address and on the host name;...
Page 273 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands SYSTem:COMMunicate:VXI:VRESource? Queries the VISA resource string for the VXI-11 protocol; see Remote Control Opera- tion. Suffix: 1..2 Selects the remote channel. Return values: '<String>' VISA address string; see example below *RST: *RST has no effect on the value.
Page 274 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Parameters: <OptionType> SWOPtion | HWOPtion | SWPackage | FWA | ALL List only software options, hardware options, software packages or firmware applications. By default or if ALL is selected, all types are listed.
Page 275 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands SYSTem:BASE:OPTion:VERSion? "nonsense" Example: Returns "0" Usage: Query only Firmware/Software: V2.1.25 SYSTem:DEVice:ID? Queries the device identification. Return values: '<DeviceID>' Device ID string. Usage: Query only Firmware/Software: V1.0.10.1 6.3.10.4 Reference Frequency and System Synchronization Settings The following commands configure the reference frequency and the system synchroni- zation settings.
Page 276 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Parameters: <ExtRefFrequency> Range: 1E+6 Hz to 80E+6 Hz *RST: 10E+6 Hz Default unit: Hz Example: SYSTem: B ASE: R EFerence: F REQuency: S OURce Firmware/Software: V1.0.5.3 SENSe:BASE:REFerence:FREQuency:LOCKed? Queries whether the reference frequency is locked or not. A not locked reference fre- quency is also indicated via the red "ERROR"...
Page 277: Trigger:base:extb:catalog:source
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Contents of this chapter The commands in this section belong to the R&S CMW270 base system; they are not related to specific firmware applications. Most of the R&S CMW270 measurement firmware applications provide their own, spe- cific trigger settings.
Page 278 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Firmware/Software: V1.0.4.11 TRIGger:BASE:EXTA:SOURce '<Source>' TRIGger:BASE:EXTB:SOURce '<Source>' Selects the output trigger signals to be routed to the TRIG A and TRIG B connectors. The signals listed below are always available. Depending on the installed options addi- tional values may be available.
Page 279 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Suffix: <n> 1..2 User Trigger 1 or User Trigger 2 TRIGger:BASE:UINitiated2:EXECute Example: Generates a trigger pulse for the trigger source "Base1: User Trigger 2". Usage: Event Firmware/Software: V3.0.10 6.3.10.6 Message Monitoring The following command configures settings related to message monitoring.
Page 280 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands 6.3.10.7 IP Subnet Configuration The following commands configure settings related to the IPv4 subnet the instrument belongs to. The settings are also available in the "Misc > IP Subnet Config" section of the "Setup"...
Page 281 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands <Description> String for easy identification of the subnet node, for example in the subnet monitor output *RST: 'My CMW' <NetworkSegment> A | B Selects the network segment to be used for the subnet A: address range 172.22.y.z B: address range 172.18.y.z *RST:...
Page 282 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Return values: <NWAdapterName> Name of the network adapter as a string, e.g. "LAN Remote" for <n> = 1 If OFF is returned, the selected value <n> is currently not assigned to a network adapter. <IPAddress>...
Page 283 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Firmware/Software: V3.0.10 SENSe:BASE:IPSet:SMONitor:ID? Queries the ID (third segment of IP address) of all network nodes detected by the sub- net monitor. Return values: <IDs> Comma separated list of values, one per network node Range: 1 to 254 SENSe:BASE:IPSet:SMONitor:ID?
Page 284: Sub-Instruments
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands 6.3.11 Sub-Instruments The following commands configure/cancel the split of the instrument into sub-instru- ments..................268 SYSTem:BASE:DEVice:COUNt ..................268 SYSTem:BASE:DEVice:RESet ..................268 SYSTem:BASE:DEVice:SUBinst? SYSTem:BASE:DEVice:COUNt <Count> Selects the number of sub-instruments. The physical instrument can be split into two sub-instruments or all hardware resources can be assigned to a single sub-instrument.
Page 285: Calibration Commands
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands <SubInstCount> Total number of sub-instruments 1: all hardware resources are assigned to a single sub-instru- ment 2: the physical instrument is split into two sub-instruments SYSTem:BASE:DEVice:SUBinst? Example: Returns 0,1 or 0,2 or 1,2. Usage: Query only Firmware/Software: V2.0.10...
Page 286 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Parameters: <Type> FSCorrection | UCORrection | CALibration | OGCal Type of the calibration. Can be specified to query the last cali- bration of a specific type and is returned as last value. FSCorrection: Correction performed in factory or service UCORrection: Correction performed by the user CALibration: Verification in the factory...
Page 287: Status Reporting System
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Return values: <Name> Name of the file as string <Date> Creation date as string CALibration:BASE:ACFile? Example: Possible result: "[Factory Default]", "2012-09-28" Usage: Query only Firmware/Software: V3.0.12 6.3.13 Status Reporting System The STATus subsystem controls the SCPI-defined status reporting structures.
Page 288 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands STATus:QUEue[:NEXT]? Queries and at the same time deletes the oldest entry in the error queue. Operation is identical to that of SYSTem: E RRor[: N EXT]? The entry consists of an error number and a short description of the error. Positive error numbers are instrument-dependent.
Page 289 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Example: if a multi evaluation measurement for GSM is installed at your instrument, this results in the combination GSM:MEASurement:MEValuation. Command exam- ple: STATus:OPERation:TASK:A:GSM:MEASurement:MEValuation:ENABle?. All commands related to the highest level (STATus:OPERation) are SCPI-confirmed. Note that *RST does not influence the status registers (see also chapter 5.6.5, "Reset Values of the Status Reporting...
Page 290 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands ......278 STATus:OPERation:TASK:A:<netw_std>:<func_grp>:<appl>:WCONdition? ..................278 STATus:OPERation:WEVent? ................278 STATus:OPERation:TASK:WEVent? ................278 STATus:OPERation:TASK:A:WEVent? ............278 STATus:OPERation:TASK:A:<netw_std>:WEVent? ..........278 STATus:OPERation:TASK:A:<netw_std>:<func_grp>:WEVent? .......278 STATus:OPERation:TASK:A:<netw_std>:<func_grp>:<appl>:WEVent? ................279 STATus:OPERation:BIT<n>:CONDition? ................279 STATus:OPERation:BIT<n>[:EVENt]? ................280 STATus:OPERation:BIT<n>:ENABle ................. 280 STATus:OPERation:BIT<n>:NTRansition ................. 280 STATus:OPERation:BIT<n>:PTRansition SYSTem:HELP:STATus:BITS? Returns a list of paths for the bits of the STATus:OPERation registers at the lowest level of the hierarchy.
Page 291 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands For a description of the variables <netw_std>, <func_grp> and <appl> refer to table 6-3. Return values: <ConditionBits> Range: 0 to 65535 (decimal representation) STAT:OPER:TASK:A:GPRF:GEN:UNIV:COND? Example: Query the CONDition part of the GPRF generator status register to check the current generator state.
Page 292 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Parameters: <MaskBits> Range: 0 to 65535 (decimal representation) STAT:OPER:TASK:A:GPRF:MEAS:POW:ESRQ 4 Example: Sets bit no. 2 (decimal 4) and disables all other bits in the ENABle part of the following status register: STAT:OPER:TASK:A:GPRF:MEAS:POW Also sets the relevant bit in the ENABle part of the following sta- tus registers, without changing the other bits of these ENABle...
Page 293 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands STATus:OPERation:TASK:A:<netw_std>:<func_grp>:NTRansition <FilterBits> STATus:OPERation:TASK:A:<netw_std>:<func_grp>:<appl>:NTRansition <FilterBits> Sets the negative transition filter. If a bit is set, a 1 to 0 transition in the corresponding bit of the associated condition register causes a 1 to be written in the associated bit of the corresponding event register.
Page 294 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands STATus:OPERation:TASK:A:<netw_std>:<func_grp>:WCONdition? <WaitBits>[, <Timeout>] STATus:OPERation:TASK:A:<netw_std>:<func_grp>:<appl>:WCONdition? <WaitBits>[, <Timeout>] Waits until at least one bit is set to true in the CONDition part of the status register, that has also been set in the <WaitBits>. In other words, waits until an AND operation between the bit patterns yields a positive result.
Page 295 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands An optional timeout can be defined. When the AND operation yields a positive result or the timeout is reached, the command returns the result of the AND operation. The bits corresponding to this result are cleared in the EVENt part.
Page 296 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands STATus:OPERation:BIT<n>:ENABle <BitValue> STATus:OPERation:BIT<n>:NTRansition <BitValue> STATus:OPERation:BIT<n>:PTRansition <BitValue> Sets bit no. <n> of the ENABle, NTRansition or PTRansition part of the STA- Tus:OPERation register, see also Structure of an SCPI Status Register. To set the entire parts see STATus:...
Page 297 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands STATus:OPERation:TASK:A:GPRF:MEAS1:EPSensor:XENable (OFF,RDY) STATus:OPERation:TASK:A:GPRF:MEAS1:XENable (EPSensor) STATus:OPERation:TASK:A:GPRF:XENable (MEAS1) STATus:OPERation:TASK:A:XENable (GPRF) STATus:OPERation:TASK:XENable (A) STATus:OPERation:XENable (TASK) Extended commands accept also decimal numbers in addition to mnemonics. If you use a mixture of numbers and mnemonics, both the decimal numbers and the mne- monics are internally translated into bits and the sum of all bits is set.
Page 298: Status:operation:xcondition
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands ...................283 STATus:OPERation:TASK:XESRq ................283 STATus:OPERation:TASK:A:XESRq ..............283 STATus:OPERation:TASK:A:<netw_std>:XESRq ..........283 STATus:OPERation:TASK:A:<netw_std>:<func_grp>:XESRq ........283 STATus:OPERation:TASK:A:<netw_std>:<func_grp>:<appl>:XESRq ..................284 STATus:OPERation:XEVent? ................284 STATus:OPERation:TASK:XEVent? ................284 STATus:OPERation:TASK:A:XEVent? ............284 STATus:OPERation:TASK:A:<netw_std>:XEVent? .......... 284 STATus:OPERation:TASK:A:<netw_std>:<func_grp>:XEVent? ........284 STATus:OPERation:TASK:A:<netw_std>:<func_grp>:<appl>:XEVent? ...................284 STATus:OPERation:XNTRansition ................. 284 STATus:OPERation:TASK:XNTRansition ..............
Page 299 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Return values: <List> Comma separated list of mnemonics (and/or decimal numbers between 0 and 65535) enclosed in brackets STAT:OPER:TASK:A:GPRF:GEN:UNIV:XCON? Example: Query the CONDition part of the status register for the GPRF generator.
Page 300: Status:operation:xevent
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Parameters: <List> Comma separated list of mnemonics (and/or decimal numbers between 0 and 65535) enclosed in brackets STAT:OPER:TASK:A:GPRF:MEAS:POW:XESRq (RUN) Example: Sets the RUN bit (bit 2) and disables all other bits in the ENABle part of the following status register: STAT:OPER:TASK:A:GPRF:MEAS:POW Also sets the relevant bit in the ENABle part of the following sta-...
Page 301: Status:operation:xwcondition
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands STATus:OPERation:TASK:A:<netw_std>:<func_grp>:XNTRansition <List> STATus:OPERation:TASK:A:<netw_std>:<func_grp>:<appl>:XNTRansition <List> Sets the negative transition filter. If a bit is set, a 1 to 0 transition in the corresponding bit of the associated condition register causes a 1 to be written in the associated bit of the corresponding event register.
Page 302: Status:operation:task:a:::Xwcondition
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands STATus:OPERation:TASK:A:<netw_std>:<func_grp>:XWCondition? <Wait>[, <Timeout>] STATus:OPERation:TASK:A:<netw_std>:<func_grp>:<appl>:XWCondition? <Wait>[, <Timeout>] Waits until at least one bit is set to true in the CONDition part of the status register, that is also set to true in the bit pattern corresponding to the <Wait> list. In other words, waits until an AND operation between the bit patterns yields a positive result.
Page 303 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands An optional timeout can be defined. When the AND operation yields a positive result or the timeout is reached, the command returns the result of the AND operation. The bits corresponding to this result are cleared in the EVENt part.
Page 304 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands "STAT:OPER:TASK:A:GPRF:MEAS1:EPS:RUN", "STAT:OPER:TASK:A:GPRF:MEAS1:IQR:OFF", "STAT:OPER:TASK:A:GPRF:GEN1:UNIV:ON" The available commands are listed below..................288 STATus:CONDition:BITS:ALL? ................... 289 STATus:CONDition:BITS:COUNt? ................289 STATus:CONDition:BITS:CATaloge? ..................... 289 STATus:EVENt:BITS:ALL? ....................290 STATus:EVENt:BITS:CLEar ..................290 STATus:EVENt:BITS:COUNt? ..................290 STATus:EVENt:BITS:NEXT? ................291 STATus:GENerator:CONDition:OFF? ................291 STATus:GENerator:CONDition:PENDing? ................
Page 305 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands STATus:CONDition:BITS:COUNt? ['<RegExp>'] Returns the number of task states listed by STATus:CONDition:BITS:ALL?. Query parameters: '<RegExp>' Optional regular expression filtering the task states before they are counted, see also Regular Expressions. STATus:CONDition:BITS:COUNt? Example: List the number of task states returned by STATus:CONDition:BITS:ALL?.
Page 306 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands STATus:EVENt:BITS:CLEar ['<RegExp>'] Clears the EVENt parts of all status registers of the STATus:OPERation register hierar- chy. If a regular expression is defined, the command is only applied to the registers matching the filter criteria.
Page 307 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands STATus:EVENt:BITS:NEXT? Example: Query and delete the next event. Usage: Query only Firmware/Software: V1.0.4.11 STATus:GENerator:CONDition:OFF? ['<RegExp>'] STATus:GENerator:CONDition:PENDing? ['<RegExp>'] STATus:GENerator:CONDition:ON? ['<RegExp>'] STATus:MEASurement:CONDition:OFF? ['<RegExp>'] STATus:MEASurement:CONDition:QUED? ['<RegExp>'] STATus:MEASurement:CONDition:RDY? ['<RegExp>'] STATus:MEASurement:CONDition:RUN? ['<RegExp>'] STATus:MEASurement:CONDition:SDReached? ['<RegExp>'] Lists all generator tasks or measurement tasks whose current state equals the state indicated by the last mnemonic.
Page 308 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands ................294 STATus:QUEStionable:BIT<n>:ENABle ..............294 STATus:QUEStionable:BIT<n>:NTRansition ..............294 STATus:QUEStionable:BIT<n>:PTRansition STATus:QUEStionable:CONDition? Returns the contents of the CONDition part of the status register. Reading the CONDi- tion registers is nondestructive. See also Structure of an SCPI Status Register.
Page 309 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands STATus:QUEStionable:NTRansition <FilterBits> Sets the negative transition filter. If a bit is set, a 1 to 0 transition in the corresponding bit of the associated condition register causes a 1 to be written in the associated bit of the corresponding event register.
Page 310: System Date And Time
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands STATus:QUEStionable:BIT<n>:ENABle <BitValue> STATus:QUEStionable:BIT<n>:NTRansition <BitValue> STATus:QUEStionable:BIT<n>:PTRansition <BitValue> Sets bit no. <n> of the ENABle, NTRansition or PTRansition part of the STA- Tus:QUEStionable register, see also Structure of an SCPI Status Register. To set the entire parts see STATus:...
Page 311 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands SYSTem:DATE:LOCal <Year>, <Month>, <Day> Sets the local date of the operating system calendar. Parameters: <Year> Range: four-digit number <Month> Range: 1 to 12 <Day> Range: 1 to n (depending on the <Month>) SYSTem:DATE:LOCal? Example: Query the local date.
Page 312 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands If the automatism is enabled, the operating system adjusts its internal clock in autumn to non DST and in spring to DST. The rules defining when exactly the clock must be adjusted by which offset depend on the configured time zone, see SYSTem:...
Page 313: Miscellaneous Commands
Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands SYSTem:TZONe <Hour>, <Minute> Specifies the offset of the local time to the Universal Time Coordinated (UTC) due to the time zone. There may be an additional offset due to Daylight Saving Time (DST). Changing the time zone (offset) does neither affect an eventual DST offset nor the time zone configured via SYSTem:...
Page 314 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands <AbsoluteConnector> RF1O | RF1C | RF2C | RF3O | RF3C | RF4C SYSTem:CONNector:TRANslation? RFAC Example: Returns e.g. RFAC, RF1C SYSTem:CONNector:TRANslation? RF2C Returns e.g. RFBC, RF2C Usage: Query only Firmware/Software: V2.0.10 FORMat:BASE[:DATA] <DataType>[, <DataLength>] Selects the format for numeric data transferred to and from the R&S CMW270, for example query results.
Page 315 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Example: The following examples show the number 123456 in different formats. FORMat:BASE ASC,3 Result: 1.235E+005 FORMat:BASE ASC,6 Result: 1.234560E+005 FORMat:BASE REAL,32 Result: #14... FORMat:BASE BIN,20 Result: #B00011110001001000000 FORMat:BASE BIN,2 Result: #B11110001001000000 FORMat:BASE HEX,8 Result: #H0001E240 FORMat:BASE OCT,10 Result: #Q0000361100 Usage:...
Page 316 Command Reference - Base Software R&S ® CMW270 Instrument-Control Commands Parameters: ON | 1: Display is shown and updated during remote control <Enable> OFF | 0: Display shows static image during remote control SYSTem:DISPlay:UPDate ON Example: Switch on the display update. Firmware/Software: V1.0.5.3 SYSTem:KLOCk <State>...
Page 317: Return Values
Command Reference - Base Software R&S ® CMW270 List of Commands Return values: <Temperature> Temperature in degrees Default unit: °C Usage: Query only Firmware/Software: V3.2.20 6.4 List of Commands *DMC................................208 *EMC................................209 *GMC?................................209 *LMC?................................209 *PMC................................210 *RMC................................210 CALibration:BASE:ACFile?..........................270 CALibration:BASE:ALL?..........................269 CALibration:BASE:LATest:SPECific?......................270 CALibration:BASE:LATest?...........................
Page 318 Command Reference - Base Software R&S ® CMW270 List of Commands CONFigure:FDCorrection:ACTivate.......................245 CONFigure:FDCorrection:DEACtivate ......................246 CONFigure:FDCorrection:USAGe?....................... 247 CONTinue:BASE:BUFFer..........................212 DELete:BASE:BUFFer...........................212 FETCh:BASE:BUFFer:LINecount?........................ 213 FETCh:BASE:BUFFer?..........................212 FORMat:BASE[:DATA]..........................298 HCOPy:DATA?.............................. 238 HCOPy:DEVice:FORMat..........................237 HCOPy:FILE..............................238 HCOPy:INTerior:DATA?..........................238 HCOPy:INTerior:FILE............................ 238 MMEMory:ALIases?............................225 MMEMory:ATTRibute............................ 225 MMEMory:CATalog:LENGth?........................227 MMEMory:CATalog?............................226 MMEMory:CDIRectory........................... 228 MMEMory:COPY............................
Page 319 Command Reference - Base Software R&S ® CMW270 List of Commands STATus:EVENt:BITS:CLEar.......................... 290 STATus:EVENt:BITS:COUNt?........................290 STATus:EVENt:BITS:NEXT?.........................290 STATus:GENerator:CONDition:OFF?......................291 STATus:GENerator:CONDition:ON?......................291 STATus:GENerator:CONDition:PENDing?....................291 STATus:MEASurement:CONDition:OFF?..................... 291 STATus:MEASurement:CONDition:QUED?....................291 STATus:MEASurement:CONDition:RDY?.....................291 STATus:MEASurement:CONDition:RUN?.....................291 STATus:MEASurement:CONDition:SDReached?..................291 STATus:OPERation:BIT<n>:CONDition?...................... 279 STATus:OPERation:BIT<n>:ENABle......................280 STATus:OPERation:BIT<n>:NTRansition..................... 280 STATus:OPERation:BIT<n>:PTRansition......................280 STATus:OPERation:BIT<n>[:EVENt]?......................279 STATus:OPERation:CONDition?........................274 STATus:OPERation:ENABle......................... 275 STATus:OPERation:ESRQ..........................275 STATus:OPERation:NTRansition........................
Page 320 Command Reference - Base Software R&S ® CMW270 List of Commands STATus:OPERation:TASK:A:<netw_std>:<func_grp>:XWCondition?............286 STATus:OPERation:TASK:A:<netw_std>:<func_grp>:XWEVent?..............286 STATus:OPERation:TASK:A:<netw_std>:<func_grp>[:EVENt]?..............276 STATus:OPERation:TASK:A:<netw_std>:CONDition?................. 274 STATus:OPERation:TASK:A:<netw_std>:ENABle..................275 STATus:OPERation:TASK:A:<netw_std>:ESRQ..................275 STATus:OPERation:TASK:A:<netw_std>:NTRansition.................276 STATus:OPERation:TASK:A:<netw_std>:PTRansition................. 277 STATus:OPERation:TASK:A:<netw_std>:WCONdition?................277 STATus:OPERation:TASK:A:<netw_std>:WEVent?..................278 STATus:OPERation:TASK:A:<netw_std>:XCONdition?................282 STATus:OPERation:TASK:A:<netw_std>:XENable..................283 STATus:OPERation:TASK:A:<netw_std>:XESRq..................283 STATus:OPERation:TASK:A:<netw_std>:XEVent?..................284 STATus:OPERation:TASK:A:<netw_std>:XNTRansition................284 STATus:OPERation:TASK:A:<netw_std>:XPTRansition................285 STATus:OPERation:TASK:A:<netw_std>:XWCondition?................285 STATus:OPERation:TASK:A:<netw_std>:XWEVent?................... 286 STATus:OPERation:TASK:A:<netw_std>[:EVENt]?..................276 STATus:OPERation:TASK:A:CONDition?.....................
Page 321 Command Reference - Base Software R&S ® CMW270 List of Commands STATus:OPERation:TASK[:EVENt]?......................276 STATus:OPERation:WCONdition?........................ 277 STATus:OPERation:WEVent?........................278 STATus:OPERation:XCONdition?......................... 282 STATus:OPERation:XENable........................283 STATus:OPERation:XESRq.......................... 283 STATus:OPERation:XEVent?........................284 STATus:OPERation:XNTRansition........................284 STATus:OPERation:XPTRansition........................ 285 STATus:OPERation:XWCondition?....................... 285 STATus:OPERation:XWEVent?........................286 STATus:OPERation[:EVENt]?........................276 STATus:PRESet............................271 STATus:QUEStionable:BIT<n>:CONDition?....................293 STATus:QUEStionable:BIT<n>:ENABle......................294 STATus:QUEStionable:BIT<n>:NTRansition....................294 STATus:QUEStionable:BIT<n>:PTRansition....................294 STATus:QUEStionable:BIT<n>[:EVENt]?......................293 STATus:QUEStionable:CONDition?......................292 STATus:QUEStionable:ENABle........................292 STATus:QUEStionable:NTRansition......................
Page 322 Command Reference - Base Software R&S ® CMW270 List of Commands SYSTem:COMMunicate:SOCKet:VRESource?..................254 SYSTem:COMMunicate:USB:VRESource?....................256 SYSTem:COMMunicate:VXI:GTR......................256 SYSTem:COMMunicate:VXI:VRESource?....................257 SYSTem:CONNector:TRANslation?......................297 SYSTem:DATE:LOCal...........................295 SYSTem:DATE[:UTC]............................294 SYSTem:DEVice:ID?.............................259 SYSTem:DISPlay:MONitor..........................249 SYSTem:DISPlay:ROLLkeymode........................249 SYSTem:DISPlay:UPDate..........................299 SYSTem:ERRor:ALL?........................... 215 SYSTem:ERRor:CODE:ALL?........................216 SYSTem:ERRor:CODE[:NEXT]?........................216 SYSTem:ERRor:COUNt?..........................216 SYSTem:ERRor[:NEXT]?..........................217 SYSTem:GENerator:ALL:OFF........................299 SYSTem:HELP:STATus:BITS?........................274 SYSTem:HELP:STATus[:REGister]?......................274 SYSTem:KLOCk............................300 SYSTem:MEASurement:ALL:OFF.........................299 SYSTem:PRESet............................218 SYSTem:PRESet:ALL...........................
Page 323 Command Reference - Base Software R&S ® CMW270 List of Commands TRACe:REMote:MODE:FILE<inst>:STOPmode................... 222 TRIGger:BASE:EXTA:CATalog:SOURce?....................261 TRIGger:BASE:EXTA:DIRection........................261 TRIGger:BASE:EXTA:SLOPe........................262 TRIGger:BASE:EXTA:SOURce........................262 TRIGger:BASE:EXTB:CATalog:SOURce?....................261 TRIGger:BASE:EXTB:DIRection........................261 TRIGger:BASE:EXTB:SLOPe........................262 TRIGger:BASE:EXTB:SOURce........................262 TRIGger:BASE:UINitiated<n>:EXECute......................262 User Manual 1173.9470.02 ─ 11 www.valuetronics.com...
Page 324: Annexes
Annexes R&S ® CMW270 Interfaces and Connectors 7 Annexes The following sections cover mostly hardware and service-related topics. 7.1 Interfaces and Connectors This chapter provides a detailed description of the rear panel connectors of the R&S CMW270. For a graphical overview of the rear panel refer to Rear Panel Tour.
Page 325 Annexes R&S ® CMW270 Interfaces and Connectors USB Connection The length of passive connecting USB cables should not exceed 1 m. The maximum current per USB port is 500 mA. 7.1.1.4 Double Universal Serial Bus connectors of type A (instrument acts as master), used to connect e.g a keyboard, mouse or other pointing devices, a printer or an external stor- age device (USB stick, CD-ROM drive etc.).
Page 326 Annexes R&S ® CMW270 Interfaces and Connectors ● If the "External" reference frequency is active, REF IN is used as an input connec- tor for an external reference clock signal. The R&S CMW270 is synchronized to the external reference signal. The external reference signal is also routed to the output connector REF OUT 1.
Page 327: Lan Interface
Annexes R&S ® CMW270 Interfaces and Connectors Trigger cables Be aware that long trigger cables may cause signal reflections! 7.1.1.9 SPDIF IN, SPDIF OUT BNC connectors used for input and output of digital audio signals in the context of audio measurements. The Sony/Philips Digital Interface (SPDIF) connectors are in line with IEC 60958-3:2010 Consumer.
Page 328 Annexes R&S ® CMW270 Interfaces and Connectors 7.1.2.1 HiSLIP Protocol The High Speed LAN Instrument Protocol (HiSLIP) is the successor protocol for VXI-11. It was defined by the IVI Foundation and was adopted by the LXI Consortium as the recommended LAN procotol. For the R&S CMW270 it is the recommended pro- tocol for control via the LAN interface.
Page 329: Gpib Bus Interface
Annexes R&S ® CMW270 Interfaces and Connectors Table 7-1: Emulation codes supported by the compatibility modes Purpose Direction (Controller) Agilent Codes IEEE1174 Codes Poll Status Byte send POL\n &POL\cr\n receive POL +stb\n &stb\cr\n Service Request receive SRQ\n &SRQ\cr\n Device Clear send DCL\n &DCL\cr\n...
Page 330 Annexes R&S ® CMW270 Interfaces and Connectors ● Up to 15 devices can be connected ● Maximum length of the connecting cables 15 m. The length of a single connecting cable should not exceed 2 m, if many devices are used, it should not exceed 1 m. ●...
Page 331 Annexes R&S ® CMW270 Interfaces and Connectors The R&S CMW270 provides several functions to communicate via GPIB bus. They are described in the following sections. 7.1.3.1 Interface Functions Instruments which can be controlled via GPIB bus can be equipped with different inter- face functions.
Page 332: Windows Xp Recovery And Backup
Annexes R&S ® CMW270 Windows XP Recovery and Backup Command QuickBASIC com- Effect on the instrument mand IBCMD (controller End of serial poll. %, CHR$(25)) (Serial Poll Disa- ble) IBCMD (controller End of the parallel-poll state. %, CHR$(21)) (Parallel Poll Unconfigure) Addressed commands Addressed commands are encoded in the range 00 through 0F hex.
Page 333: Accessing The Recovery And Backup Dialog
Annexes R&S ® CMW270 Windows XP Recovery and Backup ● The backup/recovery partition contains a backup version (image) of the complete instrument software. You can replace the system image by this "Factory Default" image and thus restore the initial state of the instrument, e.g. in case that the oper- ating system is damaged after a system crash.
Page 334: Handling User-Defined Images
Annexes R&S ® CMW270 Windows XP Recovery and Backup To restore the initial state of the instrument, recover the "Factory Default" image. 1. In the "Recovery an Backup" dialog, activate "Factory Default". 2. In the dialog opened, confirm recovery and wait until the system image has been replaced by the "Factory Default"...
Page 335 Index R&S ® CMW270 Index Symbols Cleaning ................49 CMW-B661A ..............16 :Setup ................85 CMW-B690A (OCXO) ............. 102 *CLS ................ 189, 204 Code domain error ............65 *DEV? ................204 Code Domain Power ............70 *ESE ................204 Command *ESR? ................205 common ..............
Page 336 Index R&S ® CMW270 DVI .................. 311 Handshake bus ............... 313 Hardware (connectors) ............ 308 EEprom Test ..............98 Header (command) ............135 EMI suppression ............... 16 High resolution timer ............214 Emulation codes ..............206 HiSLIP protocol ............... 312 ENABle ..............176, 177 Hotkey ................
Page 337 Index R&S ® CMW270 LAN REMOTE connector .......... 308 LAN switch ..............308 OBW .................. 69 remote control interface ..........126 remote operation ............46 Occupied bandwidth ............69 LAN connector ..............24 OCXO ................19, 102 Lan Services ..............87 selftest ................ 97 LAN Services Operation Complete ............
Page 338 Index R&S ® CMW270 Remote control ..............126 Shutting down the instrument ..........15 interfaces and protocols ..........126 Signaling applications ............74 introduction ............... 126 Signaling configuration (example) ........32 multiple channels ............132 Signaling control Remote Desktop ............... 48 remote ...............
Page 339 Index R&S ® CMW270 TCXO ................102 selftest ................ 97 Temperature Test .............. 98 Text parameters .............. 140 Timing ................64 Tooltips ................124 Trace ................153 TRACe Commands ............219 TRIG A/B ................. 310 Trigger (dialog) ..............104 Trigger (introduction) ............62 Trigger settings ..............

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