YOKOGAWA DLM2000 Series User Manual

Mixed signal oscilloscope

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DLM2000 Series

Mixed Signal Oscilloscope

Features Guide

IM 710105-01E

4th Edition

Table of Contents

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Summary of Contents for YOKOGAWA DLM2000 Series

Page 1 DLM2000 Series Mixed Signal Oscilloscope Features Guide IM 710105-01E 4th Edition...
Page 2 Thank you for purchasing the DLM2000 Series Mixed Signal Oscilloscope. This manual contains useful information about the features of the DLM2000. To ensure correct use, please read this manual thoroughly before beginning operation. After reading the manual, keep it in a convenient location for quick reference whenever a question arises during operation.
Page 3 Features and Firmware Versions Covered by This Manual This manual covers firmware versions 1.80 or later of the DLM2000 series. The relationship between firmware version and new features is given in the table below. You can check the firmware version of the DLM2000 in the overview screen. For instructions on how to display the overview screen, see section 21.4 in the user’s manual, IM710105-02E.
Page 4: Table Of Contents
Contents Vertical Axis (Analog Signal) Turning the Display On and Off (Display) ..................1-1 Vertical Scale (SCALE) ......................... 1-1 Waveform Vertical Position (POSITION) ..................1-2 Input Coupling (Coupling) ......................1-3 Probe Attenuation (Probe) ......................1-3 Inverted Waveform Display (Invert) ....................1-4 Linear Scaling (Linear Scale) ......................
Page 5 Contents Executing Actions Action Mode (Mode)........................5-1 Action to Execute When Conditions Are Met (Action) ..............5-1 Number of Actions (Action Count/Nogo Count) ................5-2 Executing Action-on-Trigger or GO/NO-GO determination (Exec) ..........5-2 GO/NO-GO Determination (Go/Nogo AND, Go/Nogo OR) ............5-2 Waveform Acquisition Record Length (Record Length) ....................
Page 6 Contents Cursor Measurement Turning Cursor Measurement On and Off (Display) ..............11-1 Cursor Mode (Type) ........................11-1 Measurement Source Waveform (Trace) ..................11-1 ΔT Cursors (ΔT) ...........................11-2 ΔV Cursors (ΔV) ..........................11-2 ΔT&ΔV Cursors (ΔT&ΔV) ......................11-3 Marker Cursors (Marker)......................11-3 Angle Cursors (Degree) .......................11-4 Moving the Cursors (Cursor/Marker) ...................11-4 Cursor Jumping (Cursor Jump)....................11-5 Automated Measurement of Waveform Parameters Turning Automated Measurement On or Off (Display) ..............
Page 7 Contents Analyzing and Searching UART Signals ................... 15-10 Analyzing and Searching I C Bus Signals ................15-13 Analyzing and Searching SPI Bus Signals ................15-15 Analyzing and Searching FlexRay Bus Signals ................ 15-17 Analyzing User-Defined Serial Bus Signals (User Define)............15-19 Displaying the Frequency Distribution of a Waveform Turning the Histograms On or Off (Display) ................
Page 8 Contents Other Features Auto Setup (Auto Setup) ......................22-1 Returning to the Default Settings (DEFAULT SETUP) ..............22-2 Snapshot (SNAP SHOT) ......................22-3 Clear Trace (CLEAR TRACE) ..................... 22-3 Calibration (Calibration) ......................22-3 Remote Control (Remote Control) ....................22-4 System Configuration (System Configuration) ................22-6 Overview (Overview)........................
Page 9: Vertical Axis (Analog Signal)
1 Vertical Axis (Analog Signal) You can configure the vertical scale, vertical position, input coupling, probe attenuation, linear scaling, and bandwidth limit settings of the CH1 through CH4 input signals. If you are using a probe that is compatible with the DLM2000 probe interface, the DLM2000 automatically configures the input impedance (50 Ω...
Page 10: Waveform Vertical Position (Position)
1 Vertical Axis (Analog Signal) • If you push the SCALE knob, the FINE indicator illuminates, and you can set the vertical scale with higher resolution. Measurement Resolution and Effective Data Range The DLM2000 samples input signals using an 8-bit A/D converter. The DLM2000’s effective data range is 250 levels (LSB).
Page 11: Input Coupling (Coupling)
1 Vertical Axis (Analog Signal) Input Coupling (Coupling) You can choose how the vertical control circuit (voltage axis) is coupled to the analog signal. You can set the input coupling to one of the available settings below. Displays only the AC component of the input signal. The input impedance is 1 MΩ. Displays both the AC and DC components of the input signal.
Page 12: Inverted Waveform Display (Invert)
You can demagnetize and perform automatic zero adjustment on a current probe when all of the following conditions are met. • A current probe with a YOKOGAWA probe interface (PBC100 or PBC050) is connected to the input terminal. • The input coupling is set to DC.
Page 13: Label Display (Label)
1 Vertical Axis (Analog Signal) Unit (Unit) You can set the unit using up to four alphanumeric characters. Scaling Coefficient A and Offset B The selectable ranges for scaling coefficient A and offset B are as follows: Selectable Range of A and B −9.9999E+30 to +9.9999E+30 Default Setting 1.0000E+00...
Page 14 1 Vertical Axis (Analog Signal) Offset Cancel (Offset Cancel) You can set whether or not to apply the specified offset to various measured values. The offset-cancel feature ON/OFF setting applies to all channels. The default setting is off. • ON Applies the specified offset to the result of cursor measurements, computations, and automated measurement of waveform parameters.
Page 15: Vertical Axis (Logic Signal)
2 Vertical Axis (Logic Signal) You can turn the bus display on and off and how to set the vertical display range, threshold, and other settings of a logic input signal (LOGIC). You can apply logic signals to the front-panel 8-bit logic signal input port. Turning the Display On and Off (Display) Set whether or not to display the logic signal waveform.
Page 16: Noise Rejection (Noise Rejection)
2 Vertical Axis (Logic Signal) State Display (State) Displays logic signal data sampled at the specified clock source edge. Even if the logic signal changes, the state is held until the clock source edge changes. You can turn the state display on and off. If you turn the state display on, set the clock source and the polarity. Clock Source (Clock) You can select from one of the settings below.
Page 17: Setting The Threshold Level For Each Bit (Threshold Type)
2 Vertical Axis (Logic Signal) Setting the Threshold Level for Each Bit (Threshold Type) Selects whether or not to set the threshold level separately for each bit. • All: For setting a common threshold level for all bits. • Each: For setting the threshold level separately for each bit When you connect one of the following logic probes to the DLM2000, the threshold type is automatically set.
Page 18: Horizontal Axis (Time Axis)
3 Horizontal Axis (Time Axis) Time Axis Setting (TIME/DIV) The time axis scale is set as a length of time per grid division. You can adjust the amount of time that you want to display waveforms for by setting the time axis. Because the horizontal display range is 10 divisions, the amount of time displayed is equal to the TIME/DIV setting ×...
Page 19 3 Horizontal Axis (Time Axis) Roll Mode Display In roll mode, the displayed waveform is not updated using triggers. Rather, the oldest data is deleted as new data is acquired, and the waveform flows from the right to the left of the screen. This mode is useful for observing low-frequency signals or signals that change slowly.
Page 20: Triggering
4 Triggering A trigger is a cue used to display the waveform on the screen. A trigger occurs when the specified trigger condition is met, and a waveform is displayed on the screen. Trigger Mode (Trigger Mode) The trigger mode determines the conditions for updating the displayed waveforms. There are four trigger modes. Auto Mode (Auto) If the trigger conditions are met before a 100-ms timeout, the DLM2000 updates the displayed waveforms on each trigger occurrence.
Page 21: Trigger Type (Type)
4 Triggering Trigger Type (Type) The following trigger types are available. EDGE • Edge trigger: Simply triggers on trigger sources edges. ENHANCED • Edge OR trigger: Triggers on the OR of multiple trigger source edges. • Edge Qualified trigger: Triggers on trigger source edges while the qualifications are met. •...
Page 22: Basic Trigger Settings
4 Triggering Basic Trigger Settings • Trigger source: The trigger source signal. • Trigger slope: Specifies which edge, rising or falling, the DLM2000 will trigger on. • Window comparator: Specifies whether the DLM2000 will trigger when the trigger source enters or leaves the specified window.
Page 23 4 Triggering The settings that you need to configure vary depending on the selected trigger source as follows: CH1 to CH4 LOGIC (Bit0 to Bit7) LINE Slope Coupling HF Rejection Noise Rejection Yes Probe Range Window Source Bit Level * Only on 2-channel models Trigger Level (Level) Trigger level refers to the signal level used as a reference for detecting a signal’s rising and falling edges or high and low states.
Page 24 4 Triggering Trigger Slope (Slope/Polarity) Slope refers to the signal movement, such as from a low level to a high level (rising slope) or from a high level to a low level (falling slope). When a slope is used as one of the trigger conditions, it is called a trigger slope. The following trigger slope settings are available for triggering the DLM2000.
Page 25 4 Triggering Window Comparator (Window) When the window comparator is off, the DLM2000 determines whether the trigger condition, the Qualify condition, or the state condition is on the waveform’s rising or falling edge or high or low point. When the window comparator is turned on, the DLM2000 determines whether the trigger condition, the Qualify condition, or the state condition is inside or outside the window.
Page 26 4 Triggering Trigger Delay (DELAY) The DLM2000 normally displays waveforms before and after the trigger point. You can set a trigger delay to display waveforms that the DLM2000 has acquired a specified amount of time after the trigger occurrence. Selectable range: – (post-trigger time ) to 10 s Resolution: (1 ÷...
Page 27: Edge Or Trigger [Enhanced]
4 Triggering Edge OR Trigger [ENHANCED] The DLM2000 triggers on multiple trigger source edges. Example When CH1 = and CH2 = Trigger Trigger Trigger Trigger Source (CH1, CH2, CH3, or CH4) Set the trigger slope for each channel. Specify “X” for channels that will not be used as trigger sources. When the trigger source changes from a level below the trigger level to a level above the trigger level (rising) (Slope)
Page 28: Edge Qualified Trigger [Enhanced]
4 Triggering Edge Qualified Trigger [ENHANCED] While the conditions of the signals other than the trigger source meet the specified qualifications, the DLM2000 triggers on the trigger source edge. Example Trigger source: CH3, Qualifications: CH1 = H, CH2 = L, other channels = X, AND Trigger Trigger Qualifications...
Page 29: State Trigger [Enhanced]
4 Triggering The DLM2000 may not trigger properly if the pattern setup time for the trigger source is less than 3 ns or the hold time is less than 3 ns. Trigger Level (Level), Coupling (Coupling) HF Rejection (HF Rejection), Noise Rejection (Noise Rejection) Window Comparator (Window) Set these items for the trigger source and qualification sources (CH1 to CH4 and Bit0 to Bit7).
Page 30 4 Triggering State Condition (State) Select each signal’s state and the clock source. State Condition (CH1 to CH4 and LOGIC BITS) Set the states of signals (CH1 to CH4 and Bit0 to Bit7) other than the clock source to H, L, or X. When the signal level is high When the signal level is low When the signal level is within the specified voltage range...
Page 31: Pulse Width Trigger [Enhanced]
4 Triggering Level (Level) For each signal (CH1 to CH4 and Bit0 to Bit7), set the reference level used to detect the signal state. This item is the same as the trigger level of the edge trigger. Coupling (Coupling) HF Rejection (HF Rejection), Noise Rejection (Noise Rejection) Window Comparator (Window) Set these items for all signal sources including the clock source (CH1 to CH4 and Bit0 to Bit7).
Page 32 4 Triggering Polarity (Polarity) Select which trigger source polarity will cause the comparison of the pulse width with the reference times. The trigger source polarity is based on the trigger level. When the signal level is high When the signal level is low When the trigger source level is within the specified voltage range (when the window comparator is on) When the trigger source level is outside the specified voltage range...
Page 33: State Width Trigger [Enhanced]
4 Triggering • The DLM2000 may not trigger properly if the spacing between signals or the signal pulse width is less than 2 ns. • Under standard operating conditions, the pulse width accuracy is ±(0.5% of setting + 2 ns) immediately after a calibration.
Page 34 4 Triggering Mode: More than; clock source: CH3, State: CH1 = H, CH2 = L, other channels = X, AND Condition: False Comparison with the state conditions Not met Not met Results of comparisons that Not met Not met have been sampled using the clock t >...
Page 35 4 Triggering • You cannot set a state condition for the signal that is selected as the clock source. • When checking the state condition in sync with the clock source bits, the DLM2000 may not trigger properly if the pattern setup time or hold time for the clock source bits is less than 3 ns. Combination (Logic) Set the combination of signal states to AND or OR.
Page 36: Serial Bus Trigger [Enhanced]
Symbolic triggering is also available. * Using YOKOGAWA free software, you can convert a CANdb file (.dbc) to a physical value/symbol definition file, (.sbl), load the file into the DLM2000, and use it as a set of trigger conditions. You can obtain the free software from the YOKOGAWA website (http://www.yokogawa.com/tm/).
Page 37: Can Bus Trigger [Enhanced, Option]
4 Triggering User-Defined Trigger The user-defined trigger is used to capture user-defined serial bus signals. The DLM2000 synchronizes to the selected clock signal and detects a serial data pattern. You can specify up to 128 bits for the serial data pattern used for triggering. You can set the CS signal, which controls the period over which the data source is checked, and the latch source, which specifies when patterns are compared.
Page 38 4 Triggering • Trigger Condition (Condition Setup) On the Condition Setup screen, set the trigger conditions such as the frame type (Remote Frame or Data Frame) and data. Frame Format Displays the frame format. • Standard: Standard format • Extend: Extended format Triggers on the start of a CAN bus signal frame when the trigger condition is set to SOF only.
Page 39 4 Triggering Reference values (a and b) If the comparison condition is set to Data = A, Data ≠ a, a ≤ Data, Data ≤ b, a ≤ Data ≤ b, or “Data < a or b < Data,” set the reference values in hexadecimal notation. You must set the byte order (Endian), sign (Sign), and comparison range (MSB or LSB).
Page 40 4 Triggering ACK Mode You can set a trigger condition based on the ACK slot state. The ACK trigger condition is met when the specified state matches the input signal ACK slot state. NON ACK When the status is recessive When the status is dominant NON ACK or ACK When the status is recessive or dominant...
Page 41 4 Triggering Comparison Condition (Condition) and Reference Values The signal trigger condition is met when the result of comparing the reference values to the input signal data meets the specified comparison condition. The method of setting the comparison condition and reference values (a and b) is the same as with the ID/ Data mode when the input format is set to Bin or Hex.
Page 42 4 Triggering Frame Format and Trigger Point The following figures illustrate the formats and trigger points of the various frames. Data Frame • Standard format Data Frame Arbitration Field Control Field Data Field CRC Field Recessive Data ID 28-18 Sequence Dominant 1 1 1 8N (0≤N≤8)
Page 43 4 Triggering Error Frame Error Frame Recessive Data Frame or Error Flag Error Boundary Remote Rrame Dominant 6 ≤ Error Flag ≤ 12 If the mode is set to Error Frame, the trigger point is the 6th error flag bit. If multiple field types and frame types are combined, the trigger point is the point where the last type appears on the time axis.
Page 44: Lin Bus Trigger [Enhanced, Option]
4 Triggering LIN Bus Trigger [ENHANCED, option] The DLM2000 triggers based on the conditions of a particular field or type of data in a LIN bus signal. The following figure shows the LIN bus signal frame format. Frame Header Response Response Space Break Synch...
Page 45 4 Triggering ID/Data The DLM2000 triggers on the AND of ID and Data conditions. • If you specify X in the ID bit pattern or data pattern, the condition is assumed to be met regardless of the corresponding bit status. •...
Page 46 4 Triggering Reference values (a and b) If the comparison condition is set to Data = A, Data ≠ a, a ≤ Data, Data ≤ b, a ≤ Data ≤ b, or “Data < a or b < Data,” set the reference values in hexadecimal notation. You must set the byte order (Endian), sign (Sign), and comparison range (MSB or LSB).
Page 47 4 Triggering Source (Source) Select the trigger source. After selecting the trigger source, configure the bit rate, sample point, noise rejection, and other settings. Source (Source) Set the trigger source to one of the settings below. The available settings vary depending on the model. CH1 to CH4 Bit Rate (BitRate) Select the LIN bus signal’s transfer rate from one of the settings below.
Page 48: Uart Trigger [Enhanced, Option]
4 Triggering UART Trigger [ENHANCED, option] The DLM2000 triggers on a UART signal. The following figure shows the UART signal data format for positive logic. Data (Positive Start Parity Stop 7 bits (b0 to b6) logic) 8 bits (b0 to b7) No parity bit for NonParity Trigger Mode (Mode)
Page 49 4 Triggering Source (Source) Source (Source) Set the trigger source to one of the settings below. The available settings vary depending on the model. If you set the trigger source to LOGIC, set the source bit. CH1 to CH4 or LOGIC (Bit0 to Bit7) Bit Rate (BitRate) Select the UART signal’s transfer rate from one of the settings below.
Page 50: I 2 C Bus Trigger [Enhanced, Option]
4 Triggering C Bus Trigger [ENHANCED, option] The DLM2000 triggers based on the I C bus signal’s start condition or the address pattern or data pattern trigger conditions. The following figure shows the I C bus signal data format. Start condition Stop condition Acknowledge bit Address + R/W bit...
Page 51 4 Triggering Adr Data When the address and data patterns match, the DLM2000 triggers on the falling edge of the 9th SCL signal clock. Start condition Stop condition Acknowledge bit Data byte Address + R/W bit 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 Triggers here...
Page 52 4 Triggering Comparison Condition (Condition) The data trigger condition is met when the relationship between the specified pattern and the input signal pattern meets the specified comparison condition. True When the patterns match False When the patterns do not match Data Pattern Set the data pattern for the specified data size in hexadecimal or binary notation.
Page 53 4 Triggering NON ACK The DLM2000 triggers when the acknowledge bit is Nack (when the SDA signal is high). You can select whether to use or ignore the acknowledge bits that belong to the start byte (Start Byte), HS mode master code (HS Mode), and read access byte (Read Access).
Page 54 4 Triggering • Trigger on a pattern whose second byte address is 06 Mode General Call Second Byte 0000 0110 Address + R/W bit 3. Triggers here 2. Determines whether the address pattern is 06 1. Determines whether the first byte is a general call address •...
Page 55: Spi Bus Trigger [Enhanced, Option]
4 Triggering HS Mode The DLM2000 triggers on the HS (high-speed) mode master code (pattern: 0000 1XXX). Stop condition Start condition Acknowledge bit Address + R/W bit Data byte 0 0 0 0 1 x x x 6 7 8 9 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 Triggers here...
Page 56 4 Triggering Trigger Condition (Condition Setup) Bit Order (Bit Order) Set the bit order that is appropriate for the data stream. When setting the data pattern, set the pattern MSB first regardless of the bit order setting. When the data stream starts with the MSB When the data stream starts with the LSB Data Length (Size) Set how many consecutive data bytes will be compared.
Page 57: Flexray Bus Trigger [Enhanced, Option]
4 Triggering Trigger Point The trigger point is determined by the clock polarity setting as follows: Data 1 Data 2 Clock Trigger point when Trigger point when the polarity is set the polarity is set Example This example displays the data sequence at the byte level and indicates the trigger position. The Data 1 and Data 2 pattern references are set to A1 and A2, respectively.
Page 58 4 Triggering Trigger Mode (Mode) Select the FlexRay trigger mode from one of the settings below. Frame Start: Triggers on the start of a frame Error: Triggers on errors ID/Data: Triggers on the AND of the ID bit pattern and Data pattern ID OR: Triggers on the OR of multiple ID bit patterns Frame Start The DLM2000 triggers on the start of FlexRay bus signal frames.
Page 59 4 Triggering You can use an 11-bit ID value as a trigger condition. Comparison Condition (Condition) The frame ID trigger condition is met when the relationship between the reference value and the input- signal ID value matches the specified comparison condition. ID = a When the value is equal to the reference value ID ≠...
Page 60 4 Triggering Data Pattern If the comparison condition is set to True or False, set the data pattern for the specified data size in hexadecimal or binary notation. If you specify X in the pattern, the condition is assumed to be met regardless of the corresponding bit status.
Page 61 4 Triggering Trigger Level (Level) You can set the FlexRay bus signal trigger level for each channel from CH1 to CH4. Set the trigger level between the levels set for Idle and Data_0 so that the trigger circuit recognizes Data_1 and Idle as H and Data_0 as L.
Page 62 4 Triggering Trigger Point The trigger occurs near the BSS falling edge immediately after all the trigger conditions are met. The only exception is that the trigger occurs near the FES rising edge when the trigger mode is set to Error, there is no CRC error in the FlexRay bus signal header, and there is only a CRC error in the frame.
Page 63: User-Defined Serial Bus Trigger [User Define, Enhanced]
4 Triggering Digitalization in the Trigger Circuit After the input signal from the FlexRay bus is digitized by the trigger comparator, the trigger circuit samples it using the internal clock. Then noise is removed by the majority filter in the Voting Window. Internal sampling clock Glitch...
Page 64 4 Triggering Chip Select (CS) When the data source is sampled in sync with the clock source, the period that the DLM2000 tests the data source can be controlled using the chip select signal. Chip Select Source (Source) Set the chip select source to one of the settings below. CH1 to CH4 or X (The chip select signal is not used.
Page 65: Tv Trigger [Enhanced]
4 Triggering Trigger Coupling (Coupling), HF Rejection (HF Rejection) Noise Rejection (Noise Rejection), Level (Level) Set these items for data, Clock, CS, and Latch. These items are the same as those of the edge trigger. Example Clock Data detection Data Latch The latch signal specifies the time when data is compared.
Page 66 4 Triggering Line Number (Line) Set the trigger source line number. • One: The DLM2000 triggers on the start of the selected line number. • All: The DLM2000 triggers on all lines. The selectable range for various broadcasting systems is as follows: Broadcasting format Selectable Range NTSC...
Page 67 4 Triggering PAL Example The following line numbers are those when the field number is set to 1 (if the field number is set to 2, the numbers are assigned sequentially by setting 315 to 2). The line numbers inside parentheses cannot be specified. Field 1 Line number...
Page 68: Trigger B [B Trig]
4 Triggering HF Rejection (HF Rejection) Select whether or not to eliminate high-frequency components (300 kHz or higher) from the trigger source. 300kHz: Eliminates high-frequency components greater than or equal to 300 kHz OFF: Does not eliminate high-frequency components When the broadcasting system is not set to User Define, the HF rejection setting is as follows: NTSC, PAL, or SDTV: Fixed at 300 kHz HDTV: Fixed at OFF Horizontal Sync Frequency (HSync)
Page 69 4 Triggering A->B(N) Trigger After the trigger A conditions are met, the DLM2000 triggers when the trigger B conditions are met N times. B(1) B(2) B(3) [trigger] Condition A met Condition A: Edge trigger, CH1 = Condition B: Edge trigger, CH2 = , N = 3 Dual Bus Trigger The DLM2000 triggers when condition A or condition B is met.
Page 70 4 Triggering Trigger A (A Trigger) The trigger A conditions are set using the menu that corresponds to the EDGE or ENHANCED key, whichever is illuminated. Trigger B (B Trigger) Configure trigger B (condition B). You can use the following triggers. Edge trigger, Edge Qualified trigger, State trigger, or Serial Bus trigger When the A and B trigger types are set to Dual Bus, the only trigger that you can specify is Serial Bus.
Page 71: Executing Actions
5 Executing Actions A specific action can be executed when trigger conditions are met (this feature is called action-on-trigger) or when the GO/NO-GO determination result is no-go. You can set the number of times to execute the action in terms of the number of waveform acquisitions or the number of determinations. Logic signals cannot be used as GO/NO-GO determination source waveforms.
Page 72: Number Of Actions (Action Count/Nogo Count)
5 Executing Actions • Contents of Emails That the DLM2000 Sends (Go/Nogo OR, Go/Nogo AND) <Subject>: The subject attached to the email. For example: “GoNogo Triggered Report (Nth Nogo result)” [Comment]: Comment [Setup Information]: Information about reference conditions 1 through 4, Logic (AND or OR), Stop Nogo/ Action Count (the number of no-go results/the number of actions) [Trigger Date and Time]: The time of trigger occurrence [Nogo/Exec Count]: The number Nogo results/the number of judgments performed...
Page 73 5 Executing Actions Reference Condition (Condition) Set whether the source waveform must be in or out of the reference range to produce a no-go result. You can also exclude the source waveform from the GO/NO-GO determination. • IN: No-go when the source waveform is within the reference range •...
Page 74 5 Executing Actions Creating a Waveform Zone (Wave-Zone) Create a zone based on the source waveform. You can also use other waveforms to create the zone. You can create up to four waveform zones. One of them is used for GO/NO-GO determination. When the NO-GO determination condition is set to OUT, a no-go judgment is made here.
Page 75 Editor Software on a PC. You can create up to four polygonal zones and use one of them for GO/NO-GO determination. You can download the Mask Editor Software from the YOKOGAWA website. Loading a Polygon Image Using the FILE Menu, load a polygon image into the specified zone (Zone No.1 to 4).
Page 76 5 Executing Actions How the DLM2000 operates when the action setting is Print or Save Waveform The DLM2000 operates based on the settings in the Print menu or FILE menu. If the auto naming feature in the FILE menu is off, files are saved using sequence numbers (Numbering). If it is not off, the files are saved using the specified method.
Page 77: Waveform Acquisition
6 Waveform Acquisition Based on the data that has been stored in the acquisition memory, the DLM2000 performs various operations, such as displaying waveforms on the screen, computing, measuring cursors, and automatically measuring waveform parameters. This chapter explains how to set the number of data points to store in the acquisition memory (the record length), how to enable or disable the sample data averaging feature, and so on.
Page 78: Acquisition Mode (Mode)
6 Waveform Acquisition Acquisition Mode (Mode) You can set the acquisition mode to one of the settings below. Normal Mode (Normal) Displays waveforms without processing the sampled data. Envelope Mode (Envelope) The DLM2000 determines the maximum and minimum values among the data sampled at 1.25 GS/s (2.5 GS/s when the interleave mode is on) at the time interval that is 2 times of the sampling period (the inverse of the sample rate) of the Normal mode setting and displays the values as pairs to produce the waveform.
Page 79: High Resolution Mode (Hi Resolution)
6 Waveform Acquisition Attenuation Constant and Average Count (Avg Count) Sets the attenuation constant for exponential averaging or the average count for linear averaging. Selectable range: 2 to 1024 Exponential averaging Linear averaging An= ― {(N – 1)An – 1 + Xn} Σ...
Page 80: Sampling Mode (Sampling Mode)
6 Waveform Acquisition Sampling Mode (Sampling Mode) The DLM2000 samples data using a 1.25-GS/s A/D converter, so the maximum sample rate in normal sampling mode (real-time sampling mode) is 1.25 GS/s. If you decrease the time axis setting when measuring fast phenomena, the sample rate will reach its maximum rate (1.25 GS/s) at a certain point.
Page 81: Waveform Acquisition (Run And Stop)
6 Waveform Acquisition • Even if Interpolation or Repetitive Sampling mode is selected, the DLM2000 runs in real-time sampling mode when the sample rate is less than or equal to 1.25 GS/s (2.5 GS/s when Interleave mode is on). When the DLM2000 is running in Interpolation or Repetitive Sampling mode, “Intp” or “Rep” appears at the upper right of the screen.
Page 82: Display
7 Display Types of Windows The DLM 2000 has the following windows. VT waveform display window Main window Displays normal waveforms, which are not magnified Zoom1 window Displays zoomed waveforms according to the settings specified using the ZOOM1 key Zoom2 window Displays zoomed waveforms according to the settings specified using the ZOOM2 key XY window...
Page 83: Display Interpolation (Dot Connect)
7 Display Waveform Mapping (Mapping) You can specify how channels are assigned to the divided areas. • Auto The waveforms whose display is turned on are assigned in order starting with the top area. • Manual You can assign each waveform to the area of your choice. You can assign all waveforms regardless of whether or not their displays are turned on.
Page 84: Graticule (Graticule)
7 Display When the Number of Displayed Waveform Data Points Is Not in the Interpolation Zone If the interpolation method is set to Sine, Line, or Pulse, the dots are connected vertically. Sine/Line/Pulse When the Number of Displayed Waveform Data Points Is in the Interpolation Zone Sine Line Pulse...
Page 85: Accumulate (Accumulate)
7 Display Accumulate (Accumulate) Normally, the DLM2000 acquires and displays waveforms at each screen update interval. The waveform update rate (acquisition rate) is up to 60 times per second. When you turn the accumulate feature on, the DLM2000 acquires waveforms at a rate independent of the screen update interval and accumulates them on the screen.
Page 86: Displaying Xy Waveforms
8 Displaying XY Waveforms You can view the correlation between two input signal levels by assigning the level of a waveform to the X-axis (horizontal axis) and assigning the level of another waveform to the Y-axis (vertical axis). XY waveforms appear in the XY window.
Page 87: Display Area (T Range1/T Range2)
8 Displaying XY Waveforms Display Area (T Range1/T Range2) Sets the start point (T Range1) and the end point (T Range2) of the display and the measurement range. Selectable range: ±5 divisions with the center of the target window taken to be 0 divisions. Measurement (Measure Setup) Configures settings for cursor measurement and area calculation.
Page 88: Computed And Reference Waveforms
9 Computed and Reference Waveforms The DLM2000 can display up to two computed or reference waveforms (MATH1/REF1 and MATH2/REF2). * Only MATH1/REF1 on 2-channel models Computation Mode (Mode) Select the waveforms that will be displayed for MATH1/REF1 and MATH2/REF2 from one of the settings below. MATH1/REF1 •...
Page 89: Operators (Operation)
9 Computed and Reference Waveforms Loading the Reference Waveform (Load from) The reference waveform is set to the waveform displayed on the screen. Select the waveform to load into REF1 or REF2 from one of the settings below. Up to 12.5 Mpoints of data can be loaded. Data that exceeds 12.5 Mpoints is loaded by sampling.
Page 90 9 Computed and Reference Waveforms • Delay (Delay) Set the amount of time to shift the phase. Selectable range: Time corresponding to ±5 divisions The resolution is 1/sample rate. The specified delay is retained even if you change the TIME/DIV setting, unless the change causes the specified delay to exceed the amount of time corresponding to ±5 divisions.
Page 91 9 Computed and Reference Waveforms Edge Count (Edge) By taking the initial point to be zero, the DLM2000 counts an edge each time the waveform assigned to Source1 passes through the specified detection level. • Detection Level (Threshold) Set the level used to detect edges. Selectable range: ±5 divisions •...
Page 92: Initial Point (Initial Point)
9 Computed and Reference Waveforms Initial Point (Initial Point) Set the initial point when integrating, counting edges, or counting rotations. The DLM2000 integrates and counts by assuming the initial point to be zero. You can set the initial point numerically or set it to a specific point such as the trigger position or 0 divisions. Selectable range: −5.00 to 5.00 divisions Resolution: 0.01 divisions Setting a Specific Point (Set to)
Page 93: User-Defined Computation (User Define, Option)
9 Computed and Reference Waveforms User-Defined Computation (User Define, Option) You can define two original expressions. The user-defined computation option is only available on 4-channel models. Expression (Expression) Define an expression by combining computation source waveforms and operators. You can enter up to 128 characters. Computation Source Waveform Menu Item Description...
Page 94 9 Computed and Reference Waveforms Operators You can combine the following operators to define expressions. Menu Item Example Description Basic functions +,-,*,/ C1+C2-C3 Basic arithmetic of the input value ABS(C1) Absolute value of the input value SQRT SQRT(C2) Square root of the input value LOG(C1) Logarithm of the input value LN(C1)
Page 95 9 Computed and Reference Waveforms Constants Menu Item Description K1 to K4 Constant 0 to 9 E notation Used to enter a number in scientific notation in expressions (1E+3 = 1000, 2.5E-3 = 0.0025) Displayed as “E” in expressions to distinguish this from the “EXP” operator.
Page 96 9 Computed and Reference Waveforms Digital Filter Definitions (Filter1/Filter2) When using FILT1 or FILT2 in user-defined computation, set the digital filter’s filter type, frequency band, and cutoff frequency. • Filter Type (Type) Select the filter from one of the settings below. •...
Page 97 9 Computed and Reference Waveforms Computation on History Waveforms (Math on History) This feature performs computation on all history waveforms. If waveform acquisition is stopped and you press the Math on History soft key, the DLM2000 performs user- defined computation on all of the source channel’s history waveforms. •...
Page 98 9 Computed and Reference Waveforms MEAN (Moving Average) Examples Syntax: MEAN(parameter 1, parameter 2) Parameter 1: Set the source waveform of the moving average. Enter a waveform or an expression that contains waveforms. Parameter 2: Set the moving average coefficient. Enter a constant or a constant expression. MEAN(C1,10) Moving average of waveform C1 with the coefficient set to 10 MEAN(C2+C3,K1)
Page 99 9 Computed and Reference Waveforms PWHH to DUTYL (Pulse Width Computation) Examples Syntax: PWHH(parameter 1, parameter 2, parameter 3) Parameter 1: Set the waveform to compute the pulse width of. Enter a single waveform. Parameter 2: Set the upper threshold level. Enter a constant or a constant expression. Parameter 3: Set the lower threshold level.
Page 100: 10 Fft
10 FFT The DLM2000 can determine up to two input waveform power spectrums (FFT1 and FFT2). On models with the user-defined feature (optional), the DLM2000 can determine the linear spectrum, rms power spectrum, power spectrum, cross spectrum, transfer function, and coherence function. FFT waveforms appear in the FFT window.
Page 101: Fft Conditions (Fft Setup)
10 FFT FFT Conditions (FFT Setup) Configure the time window and how to display FFT waveforms (normal, peak hold, or average). On models with user-defined computation (optional), you can also select the spectrum to analyze. Spectrum Type (Type/Sub Type) On models with user-defined computation (optional), you can also select the spectrum to analyze from the following: Spectrum Description...
Page 102: Number Of Fft Points (Fft Point)
10 FFT Time Window (Window) Set the time window to one of the settings below. • Rectangle (rectangular window) • Hanning (Hanning window) • Flattop (flattop window) Waveform Display Mode (Mode) Select how to display FFT waveforms from one of the settings below. •...
Page 103: Scale Value (Display Setup)
10 FFT Scale Value (Display Setup) Set the vertical and horizontal scale values. Vertical Scale (Vert.Scale) Set the vertical scale to one of the settings below. • Auto: Sets the vertical scale values automatically • Manual: For manually setting the center (Center) of the horizontal axis and the value per division (Sensitivity) Horizontal Scale (Horiz.Scale) Set the horizontal scale to one of the settings below.
Page 104 10 FFT • Marker Cursor Positions (Marker1/Marker2) Set the Marker1 and Marker2 positions. Selectable range: ±5.00 divisions Peak Cursors (Peak) Within each of the two frequency ranges (Peak1 Range1 to Range2 and Peak2 Range1 to Range2) that you specify, the DLM2000 determines the peak (Peak1 and Peak2) and displays the frequencies, levels, and the difference between the peak values.
Page 105: 11 Cursor Measurement
11 Cursor Measurement You can move cursors on the waveforms displayed on the screen to view the measured values at the points where the cursors intersect the waveforms. ΔT&ΔV cursor Cursor1 Cursor2 Cursor1 ΔV Cursor2 ΔT Turning Cursor Measurement On and Off (Display) Sets whether or not to make measurements using cursors.
Page 106: Δt Cursors (Δt)
11 Cursor Measurement ΔT Cursors (ΔT) The ΔT cursors are two lines that are perpendicular to the time axis. You can use them to measure the time from the trigger position to each of the ΔT cursors, the time difference between the two cursors, and the inverse of the time difference between the two cursors.
Page 107: Δt&Δv Cursors (Δt&Δv)
11 Cursor Measurement ΔT&ΔV Cursors (ΔT&ΔV) ΔT cursors and ΔV cursors are displayed at the same time. Measurement Items (Item Setup) You can measure the following time and vertical values at the cursor positions. Time axis (ΔT cursors) Time value at Cursor1 Time value at Cursor2 ΔT Time difference between Cursor1 and Cursor2...
Page 108: Angle Cursors (Degree)
11 Cursor Measurement Angle Cursors (Degree) You can measure time values and convert them to angles. On the time axis, set the zero point (Ref Cursor1 position), which will be the measurement reference, the end point (Ref Cursor2 position), and the reference angle that you want to assign to the difference between Ref Cursor1 and Ref Cursor2.
Page 109: Cursor Jumping (Cursor Jump)
11 Cursor Measurement Notes about Cursor Measurement • The measured time values are based on the trigger position. • The measured value for data that cannot be measured appears as “***.” • If the display record length is less than a given length (in the interpolation zone), the DLM2000 interpolates between sampled data if Dot Connect is not set to OFF.
Page 110: Automated Measurement Of Waveform Parameters
12 Automated Measurement of Waveform Parameters The DLM2000 can automatically measure various parameters of the displayed waveform, such as the maximum and minimum values. It can also compute statistics for the automatically measured data. The enhanced parameter measurement feature allows you to automatically measure parameters in two areas (defined as area 1 and area 2) and perform various calculations on the automated measurement values of waveform parameters.
Page 111 12 Automated Measurement of Waveform Parameters Automated Measurement of Waveform Parameters The DLM2000 automatically measures the specified measurement items on the source waveform. Measurement Items (Item Setup) Sets the measurement items for each source waveform. The DLM2000 can store a total of up to 100000 data values for all areas and all traces (CH1 through CH4, Math1, Math2, and LOGIC The DLM2000 can display a total of 20 measurement items on the screen.
Page 112 12 Automated Measurement of Waveform Parameters • The unit of measurement that is listed for voltage measurement items changes to amperes when current is measured. If you have specified a unit when measuring in linear-scaling mode, the DLM2000 displays the measured values using the specified unit.
Page 113 12 Automated Measurement of Waveform Parameters Burst: Burst period [s] Set the time range (Time Range) to a value appropriate for the burst period that you want to measure. Burst Time range (1) Distal (2) Mesial (3) Proximal Measurement of Delay between Waveforms (Delay Setup) Measures the time difference from the reference waveform (Reference) edge or the trigger point (Trig Pos) to the source waveform (Trace) edge.
Page 114 12 Automated Measurement of Waveform Parameters Cycle Mode (Cycle Mode) The time range for automated measurement is set to the period, not the time range specified by T Range1 and T Range2. You can set how the DLM2000 determines the time range to one of the settings below. 1 Cycle: Sets the time range to the first period after T Range1 N Cycle: Sets the time range to the left end of the first period that is between T Range1 and T Range2 to the right end of the Nth period...
Page 115 12 Automated Measurement of Waveform Parameters When set to Max If the statistical processing mode is set to Cycle or History, the measurement location cannot be displayed. Reference Level for Automated Measurement (Ref Levels) Sets the reference level that is used to measure various parameter values such as High, Low, Hi-Low, Rise, and Fall for each source waveform.
Page 116: Statistics (Statistics)
12 Automated Measurement of Waveform Parameters Statistics (Statistics) Display the following statistics on the automated measurement values of waveform parameters. Statistics can be calculated on up to nine automatically measured items. • Maximum (Max) • Minimum (Min) • Mean (Mean) •...
Page 117 12 Automated Measurement of Waveform Parameters Cyclic Statistical Processing (Cycle) In cyclic statistical processing, the DLM2000 divides the displayed waveform by the period that it automatically determines through calculation, and calculates statistics of the measured values in each period. The method of determining the period is the same as the method for determining the Period measurement item.
Page 118 12 Automated Measurement of Waveform Parameters Statistical Processing of History Waveforms (History) The DLM2000 automatically measures items on the selected range of the history waveform and calculates statistics. The DLM2000 calculates statistics from the oldest waveform. The statistics of the waveforms displayed in Time Stamp are calculated.
Page 119 12 Automated Measurement of Waveform Parameters Trend Display and Histogram Display (Trend/Histogram) You can display up to two trends or histograms of the specified measurement items. You can also display values using the measurement feature. Mean, standard deviation, and other statistics can be displayed on the histogram display.
Page 120 12 Automated Measurement of Waveform Parameters • Measurement (Measure Setup) On histograms, you can measure parameters such as peak values and maximum values and measure values using cursors. • Mode (Mode) Param: Measures the value of the selected parameter. OFF: Disables measurement. •...
Page 121: Enhanced Parameter Measurement (Enhanced)
12 Automated Measurement of Waveform Parameters Enhanced Parameter Measurement (Enhanced) The enhanced parameter measurement feature allows you to perform automated measurement of the waveform parameters of two areas. It also allows you to perform calculations using the automated measurement values of waveform parameters.
Page 122 Expression (Expression) Be sure to include a waveform parameter in the expressions. The available operators and how to use them are described below. Menu Item Example Description +, -, *, / Max(C1)-Min(C1) Basic arithmetic of the input value ABS(High(C1)) Absolute value of the input value SQRT SQRT(Volt1(C1)) Square root of the input value...
Page 123: Notes About Automated Measurement Of Waveform Parameters
Notes about Automated Measurement of Waveform Parameters • If measurement is not possible, the measured value appears as “*****.” • The DLM2000 may not measure correctly if the waveform amplitude is small. • To stop automated measurement, select OFF by pressing MEASURE > Display soft key. Measurement stops immediately.
Page 124: 13 Zooming In On Waveforms
13 Zooming in on Waveforms You can magnify the displayed waveforms vertically or horizontally. The zoomed waveforms of two locations can be displayed simultaneously (the dual zoom feature). You can also specify which channel you want to zoom in on. You cannot zoom if the number of displayed points on the screen is less than or equal to 10.
Page 125: Displaying The Main Window (Main)
13 Zooming in on Waveforms Displaying the Main Window (Main) Selects which area to display the main window in. • OFF: Does not display the main window • On 20%: Displays the main window in the top 20% area of the screen •...
Page 126: Zoom Position (Z1 Position/Z2 Position)
13 Zooming in on Waveforms Zoom Position (Z1 Position/Z2 Position) Taking the horizontal center of the main window to be 0 divisions, set the center position of the zoom boxes in the range of −5 to +5 divisions. In the Main window, the zoom box with solid lines is Zoom1, and the zoom box with dashed lines is Zoom2.
Page 127: 14 Searching Waveforms
14 Searching Waveforms The search feature allows you to search the displayed waveforms for locations that match the specified conditions. You can zoom-in on the detected locations. You can search the waveforms within the specified search range over up to 50000 points. Search start position Search end position Detected point...
Page 128 14 Searching Waveforms Edge Qualified Search While the conditions of the waveforms other than the search source meet the specified qualifications, the DLM2000 searches for positions where the rising or falling slope of the search source passes through the specified level. Search Example Qualification: CH1 = H, CH2 = L, AND;...
Page 129: Search Conditions (Condition Setup)
14 Searching Waveforms State Width Search The DLM2000 searches for points where the matched or not-matched condition changes after the time width mode condition has been met. Whether or not the time width mode condition is met is determined by the relationship between the reference time and the length of time for which each signal state matches or does not match the state condition.
Page 130 14 Searching Waveforms Edge Qualified Search Search Source Waveform (Source) You can select from one of the settings below. The available settings vary depending on the model. 1, 2 CH1 to CH4 (, LOGIC), Math1, or Math2 1 For CH4 and LOGIC, you can only select the waveform whose key is illuminated. 2 If you select LOGIC, you must select the source bit from Bit0 to Bit7.
Page 131 14 Searching Waveforms Pulse Width Search Search Source Waveform (Source) You can select from one of the settings below. The available settings vary depending on the model. 1, 2 CH1 to CH4 (, LOGIC), Math1, or Math2 1 For CH4 and LOGIC, you can only select the waveform whose key is illuminated. 2 If you select LOGIC, you must select the source bit from Bit0 to Bit7.
Page 132: Displaying Detected Waveforms (Display Setup)
14 Searching Waveforms Displaying Detected Waveforms (Display Setup) Displays the detected point of the detected point number specified by Pattern No in the center of the zoom window. When the pattern number is set to 2. 2…… (detected points) Source (waveform Level to search)
Page 133: Zoom Position (Z1 Position/Z2 Position)
14 Searching Waveforms Zoom Position (Z1 Position/Z2 Position) You can change the zoom position in the zoom window that is specified using Result Window in the menu accessible with the Display Setup soft key. Executing a Search (Search) The DLM2000 searches for positions where the specified search conditions are met. Then, the DLM2000 displays the waveform expanded in the zoom window with the detected point that corresponds to the number you specify at the center.
Page 134: 15 Analyzing And Searching Serial Bus Signals
15 Analyzing and Searching Serial Bus Signals The DLM2000 can decode frames, fields, and other information from the waveform displayed on the screen. Then, it can display the decoded results along with the waveform on the screen or display a list of detailed decoded results.
Page 135: Serial Bus Signal Type (Type)
15 Analyzing and Searching Serial Bus Signals Serial Bus Signal Type (Type) Select the serial bus signal type to analyze and search from one of the settings below. CAN, LIN, UART, I2C, and SPI are options. • CAN: CAN bus signal •...
Page 136: Decoded Display (Decode)
3 Only selectable when the analysis source is a CAN bus signal. You can display the decoded results using symbols by converting a CANdb file (.dbc) to a physical value/symbol definition file (.sbl) using the free YOKOGAWA conversion software “Symbol Editor” and by loading the file into the DLM2000. Display Example When Bin display is used, a bit order that is appropriate for the displayed waveforms is used regardless of the bit order setting.
Page 137: List Display (List)
15 Analyzing and Searching Serial Bus Signals List Display (List) The DLM2000 can display a list of decoded results. The waveform corresponding to the specified analysis number can be displayed expanded in the zoom window. The DLM2000 does not display the list when the source is a user-defined serial bus signal. If you turn both the SERIAL BUS1 and SERIAL BUS2 displays on, the SERIAL BUS1 and SERIAL BUS2 lists are displayed at the left and right sides of the screen, respectively.
Page 138: Analyzing And Searching Can Bus Signals
15 Analyzing and Searching Serial Bus Signals Analyzing and Searching CAN Bus Signals Analysis Source Frame The following frames can be analyzed. Remote, data, error, and overload frames Bus Setup (Setup) Source (Source) Set the analysis source to one of the settings below. The available waveforms vary depending on the model. CH1 to CH4, Math1, or Math2 Bit Rate (Bit Rate) Select the CAN bus signal’s data transfer rate from one of the settings below.
Page 139 15 Analyzing and Searching Serial Bus Signals List Display (List) The list displays the following items. Analysis number. Negative numbers are assigned to frames before the trigger point, and positive numbers are assigned to frames after the trigger point. The DLM2000 can display the analysis results for up to 100000 frames in the range of −99999 to 99999.
Page 140: Analyzing And Searching Lin Bus Signals
15 Analyzing and Searching Serial Bus Signals Analyzing and Searching LIN Bus Signals Analysis Source Field You can analyze the following fields and patterns. Break, Synch, ID, Data, or Checksum Bus Setup (Setup) Source (Source) Set the analysis source to one of the settings below. The available waveforms vary depending on the model. CH1 to CH4, Math1, or Math2 Bit Rate (Bit Rate) Select the LIN bus signal’s data transfer rate from one of the settings below.
Page 141 15 Analyzing and Searching Serial Bus Signals List Display (List) The list displays the following items. Analysis number. Negative numbers are assigned to frames before the trigger point, and positive numbers are assigned to frames after the trigger point. The DLM2000 can display the analysis results for up to 100000 frames in the range of –99999 to 99999.
Page 142 15 Analyzing and Searching Serial Bus Signals Error Type (Error Type) If you set the search mode to Error, select the error types to search for from the following settings. Parity The DLM2000 calculates the parity of the protected identifier field. If the result does not satisfy the following equations, the DLM2000 triggers on the protected identifier field’s stop bit position.
Page 143: Analyzing And Searching Uart Signals
15 Analyzing and Searching Serial Bus Signals Analyzing and Searching UART Signals Analysis Source Data: Searches for data patterns Bus Setup (Setup) Source (Source) Set the analysis source to one of the settings below. The available waveforms vary depending on the model. CH1 to CH4, LOGIC (Bit0 to Bit7), Math1, or Math2 * For CH4 and LOGIC, you can only select the waveform whose key is illuminated.
Page 144 15 Analyzing and Searching Serial Bus Signals • Byte Space (Byte Space) The DLM2000 displays data whose time length is less than the specified byte space (Byte Space) in a single group. Selectable Range The selectable range is from the time length that corresponds to the number of bits in the UART signal data format plus 2 bits, to 100 ms.
Page 145 15 Analyzing and Searching Serial Bus Signals List Display (List) The list displays the following items. When Grouping Is Set to ON Analysis number. Negative numbers are assigned to frames before the trigger point, and positive numbers are assigned to frames after the trigger point.
Page 146: Analyzing And Searching I C Bus Signals
15 Analyzing and Searching Serial Bus Signals Analyzing and Searching I C Bus Signals Bus Setup (Setup) Serial Clock (SCL) and Serial Data (SDA) Set the SCL and SDA sources to one of the settings below. The available waveforms vary depending on the model.
Page 147 15 Analyzing and Searching Serial Bus Signals List Display (List) The list displays the following items. Analysis number. Negative numbers are assigned to frames before the trigger point, and positive numbers are assigned to frames after the trigger point. The DLM2000 can display the analysis results for up to 300000 frames in the range of −299999 to 299999.
Page 148: Analyzing And Searching Spi Bus Signals
15 Analyzing and Searching Serial Bus Signals Analyzing and Searching SPI Bus Signals Bus Setup (Setup) Wiring System (Mode) This item is the same as that of the SPI bus signal. Data Setup (Data Setup) Bit Order (Bit Order) This item is the same as that of the SPI bus signal. Field Size (Field Size) You can set the field size to a value between 4 and 32 bits.
Page 149 15 Analyzing and Searching Serial Bus Signals List Display (List) The list displays the following items. Analysis number. Negative numbers are assigned to frames before the trigger point (Reference Point), and positive numbers are assigned to frames after the trigger point. The DLM2000 can display the analysis results for up to 300000 frames in the range of −299999 to 299999.
Page 150: Analyzing And Searching Flexray Bus Signals
15 Analyzing and Searching Serial Bus Signals Analyzing and Searching FlexRay Bus Signals Analysis Source Frame You can analyze the following frames and patterns. Frame Start, Error, and ID/Data Bus Setup (Setup) Source (Source) Set the analysis source to one of the settings below. CH1 to CH4, Math1, or Math2 Bit Rate (Bit Rate) Select the FlexRay bus signal's data transfer rate from one of the settings below.
Page 151 15 Analyzing and Searching Serial Bus Signals List Display (List) The list displays the following items. Analysis number. Negative numbers are assigned to frames before the trigger point, and positive numbers are assigned to frames after the trigger point. The DLM2000 can display the analysis results for up to 5000 frames in the range of –5000 to 5000.
Page 152: Analyzing User-Defined Serial Bus Signals (User Define)
15 Analyzing and Searching Serial Bus Signals Analyzing User-Defined Serial Bus Signals (User Define) Bus Setup (Setup) You must set the following items to analyze user-defined serial bus signals. Source (Source) Set the analysis source to one of the settings below. The available waveforms vary depending on the model. CH1 to CH4 Set the selected source’s active state, trigger coupling, HF rejection, and level.
Page 153: Displaying The Frequency Distribution Of A Waveform
16 Displaying the Frequency Distribution of a Waveform The DLM2000 can count the frequency of data occurrence in a specified area and display in a histogram. You can select whether to count the voltage data frequency or the time data frequency. You can measure the mean, standard deviation, maximum value, minimum value, peak value, median, etc.
Page 154: Measurement (Measure Setup)
16 Displaying the Frequency Distribution of a Waveform Histogram Frequency The frequency of values is counted until the waveform display is updated. The frequency is reset when the waveform display is updated. Measurement (Measure Setup) Mode (Mode) Param: Measures the value of the selected parameter and performs cursor measurement. OFF: Disables measurement.
Page 155: Power Supply Analysis Feature (Power Analysis Option)
You need power supplies to use the deskew signal source and current and differential probes without the YOKOGAWA probe interface (differential probes can run on batteries). If the DLM2000 is not equipped with the probe power option (/P4), you need to use the probe power supply (701934), which is sold separately.
Page 156: Switching Loss Analysis (Sw Loss)
17 Power Supply Analysis Feature (Optional) Example of Deskewing Before deskewing After deskewing Current Voltage signal signal Switching Loss Analysis (SW Loss) You can measure the device’s total loss (power loss) and switching loss (power loss during switching). If you select SW Loss, you can calculate statistics and display power waveforms and measured values. You can display a total of up to 20 switching loss measurement items and automatically measured waveform parameter items.
Page 157 17 Power Supply Analysis Feature (Optional) Measurement Setup (Measure Setup) Cycle Mode (Cycle Mode) If you turn cycle mode off, you can measure the power loss over the range specified by the cursors T Range1 and T Range2. You can measure the switching loss and steady-state loss (the loss within the loss calculation period) separately.
Page 158 17 Power Supply Analysis Feature (Optional) The total loss is derived using the following equation. Total loss = Loss in the loss calculation period + loss in the switching period Switching period Switching period Loss calculation period Zero loss period Measured with Measured with the adjustment (RDS...
Page 159 17 Power Supply Analysis Feature (Optional) Level Setup (Level Setup) Sets the voltage level (U:Level), current level (I:Level), and mesial values that are used to determine the loss period and cycle and also sets the RDS(on) or Vce(SAT) value that is used to measure the loss over the loss calculation period.
Page 160 17 Power Supply Analysis Feature (Optional) Power Waveform Display (Power(Math1 and Math2)) ON: The power waveform is displayed. Computation settings (MATH/REF) become invalid. OFF: The power waveform is not displayed. Computation settings (MATH/REF) are valid. The DLM2000 computes the power value by multiplying the actual measured values for voltage and current. The power waveform display is not affected by the specified U:Level or I:Level, even when cycle mode is on.
Page 161: Safe Operating Area Analysis (Soa)
17 Power Supply Analysis Feature (Optional) Safe Operating Area Analysis (SOA) You can plot the voltage input channel on the X-axis and the current input channel on the Y-axis, evaluate the operating range characteristics of a power device (or other device), and check whether or not the device operations fall within the safe operating area (SOA) indicated in gray in the figure below.
Page 162: Harmonic Analysis (Harmonics)
IEC standards, we recommend that you use a digital power meter from the WT3000 series and harmonic measurement software (761922), both produced by YOKOGAWA. However, the harmonic analysis features on the DLM series are a good way of measuring general characteristics.
Page 163 17 Power Supply Analysis Feature (Optional) Measurement Conditions To analyze harmonics, use the following measurement conditions. Trigger Mode To continuously analyze harmonics while acquiring waveforms, set the trigger mode to Normal. Time Window Rectangle (rectangular window). Number of Waveforms and Number of Waveform Data Points To perform analysis in accordance with harmonic current emission standards, you must configure the DLM2000 so that the number of data points and the number of periods meet the following conditions.
Page 164 17 Power Supply Analysis Feature (Optional) EUT’s fundamental current (Fund Current) Set the fundamental current when the EUT’s load is at its maximum. To set the maximum current that is measured on the DLM2000, perform harmonic analysis with the maximum load, and then use the Max value that appears under the Order 1 column in the list.
Page 165 DLM2000 are instantaneous values. Therefore, the results do not fully comply with the standard. To take make proper measurements in accordance with the standard, you need to use a YOKOGAWA WT3000 series digital power meter and its harmonic measurement software (761922).
Page 166: Measuring Inrush Current By Computing The Joule Integral (I 2 T)
17 Power Supply Analysis Feature (Optional) Measuring Inrush Current by Computing the Joule Integral (I Measure the Joule integral (I t; the square of the maximum current × time) of the inrush current. This feature is useful when you are evaluating and comparing items such as device fuses. When you select I t, you can display measured values and a waveform of the Joule integral and compute statistics.
Page 167: 18 Displaying And Searching History Waveforms
18 Displaying and Searching History Waveforms Acquisition memory stores waveforms that are displayed on the screen and waveform data that have been acquired in the past. The history feature allows you to display or search past waveforms (history waveforms). You can perform the following operations on history waveforms: •...
Page 168: Display Mode (Mode)
18 Displaying and Searching History Waveforms Display Mode (Mode) Selects how history waveforms are displayed. • One: Displays only the waveform of the selected record number • All: Overlays all selected waveforms. All waveforms except the highlighted waveform are displayed in an intermediate color.
Page 169: List Of Timestamps (List)
18 Displaying and Searching History Waveforms List of Timestamps (List) Lists the history waveforms’ record numbers, trigger timestamps, and time differences from the previous data triggers. The trigger timestamp resolution varies depending on the sample rate. Searching the List You can move to the following record number. •...
Page 170: Replay (Replay)
18 Displaying and Searching History Waveforms Executing a Search (Exec) Searches for waveforms that meet the specified search conditions and displays only the waveforms and timestamps that are detected. Finishing the Search (Reset) Clears the history waveforms that were detected and displays all history waveforms. Replay (Replay) Displays the specified waveform first and then the older or newer data in order.
Page 171: 19 Printing And Saving Screen Captures
19 Printing and Saving Screen Captures Destination Type (Print To) You can save screen captures and print them on the following types of printers. Built-in Printer (BuiltIn) The optional built-in printer if it is installed. USB Printer (USB) The printer that is connected to the DLM2000 through one of the USB 2.0 ports. Network Printer (Network) On models with the Ethernet option, you can select a printer that is on the network that the DLM2000 is connected to.
Page 172: Printing On The Built-In Printer (Builtin)
19 Printing and Saving Screen Captures Printing on the Built-in Printer (BuiltIn) Print Mode (Mode) On models with the optional built-in printer, you can print screen captures using one of three available modes. Hard Copy (Hardcopy) The entire DLM2000 screen is printed. Normal (Normal) The waveform area of the DLM2000 screen is printed.
Page 173: Printing On A Usb Printer (Usb)
• Do not connect incompatible printers. • For information about USB printers that have been tested for compatibility, contact your nearest YOKOGAWA dealer. Connection Procedure Connect a USB printer directly to the DLM2000 using a USB cable. You can connect or remove the USB cable regardless of whether or not the DLM2000 power switch is turned on (hot-plug support).
Page 174: Printing On A Network Printer (Network)
19 Printing and Saving Screen Captures • Screen captures may not be printed properly on some printers. Use a USB printer that has been tested for compatibility. • The DLM2000 may not detect USB printer errors or out-of-paper status. If an error occurs, press PRINT again to stop printing.
Page 175: Saving Screen Captures To Files (File)
19 Printing and Saving Screen Captures Saving Screen Captures to Files (File) You can save screen captures to files in PNG, BMP, and JPEG formats. Save Mode (Mode) Hard Copy (Hardcopy) The entire DLM2000 screen is saved. Normal (Normal) The waveform area of the DLM2000 screen is saved. The menu area is not saved. If cursor measurements or automatically measured results are displayed, they are captured below the waveform area.
Page 176: Printing And Saving Screen Captures To Multiple Destinations (Multi)
19 Printing and Saving Screen Captures Printing and Saving Screen Captures to Multiple Destinations (Multi) You can print and save screen-capture and waveform data to multiple output destinations at the same time. The DLM2000 outputs screen-capture and waveform data according to the PRINT menu or FILE menu settings. •...
Page 177: 20 Saving And Loading Data
20 Saving and Loading Data You can save the following types of data to the internal memory, a USB storage device, or a network drive. • Waveform data • Setup data • Screen image data • Waveform zone data • Snapshot waveform data •...
Page 178: Saving Data (Save)
20 Saving and Loading Data Saving Data (Save) The DLM2000 saves data to the specified storage medium. Saving Waveform Data (Waveform) You can save the waveform data that the DLM2000 has measured to a file in binary or ASCII format or to a file in ASCII format with time information.
Page 179 You can load the data into the DLM2000, display the waveform of the data, and view the values that it contains. You can use the YOKOGAWA’s Xviewer software application to analyze waveforms on your PC. For details, contact your nearest YOKOGAWA dealer. You can download a trial version from the YOKOGAWA website.
Page 180 20 Saving and Loading Data Data Compression (Compression) You can save waveform data by compressing or sampling it. If you want to save waveform data whose record length is more than 1.25 Mpoints to a file in ASCII format, the data must be compressed. •...
Page 181 20 Saving and Loading Data Saving Setup Data (Setup) You can save setup data to a file or to any of the three internal memory locations. Saving Setup Data to a File As with waveform data, you can save setup data to a specified storage medium. You can specify file names and enter comments in the same way as with waveform data.
Page 182 20 Saving and Loading Data Saving Other Types of Data (Others) You can save screen image data, waveform zone data, snapshot waveform data, automated measurement values of waveform parameters, serial bus analysis results, FFT waveform data, histogram data, and list of timestamps.
Page 183 20 Saving and Loading Data Automated Measurement Values of Waveform Parameters (Measure) You can save specific automatically measured values to a file in CSV format. The extension is .csv. CSV files are text files that contain data separated by commas. They are used to convert data between spreadsheet and database applications.
Page 184 20 Saving and Loading Data Serial Bus Analysis Results (Serial Bus) You can save analysis results for the buses that you specified with the S.Bus1 and S.Bus2 settings. The analysis results are saved according to the settings made on the HISTORY menu. If the history mode is set to One, the analysis results of the specified record number's waveform are saved.
Page 185 20 Saving and Loading Data You can save analysis results of I C bus signals to a file in CSV format. The extension is .csv. Analysis results of up to 300,000 bytes can be saved. Data size = (The number of bytes in the analysis results + 4) × 125 bytes * The data size is a reference value.
Page 186 20 Saving and Loading Data You can save analysis results of SPI bus signals to a file in CSV format. The extension is .csv. Analysis results of up to 300,000 bytes can be saved. Data size = (The number of bytes in the analysis results × 2 + 4) × 125 bytes * The data size is a reference value.
Page 187 20 Saving and Loading Data FlexRay You can save analysis results of FlexRay bus signals to a file in CSV format. The extension is .csv. Analysis results of up to 5,000 frames can be saved. Data size = (The number of frames in the analysis results + 4) × 60 bytes * The data size is a reference value.
Page 188 20 Saving and Loading Data FFT Results (FFT) You can save the results of computation that was specified using FFT1 or FFT2. Up to 250 Kpoints of data can be saved. Freq Info. OFF: The results are saved without frequency information. Data size in bytes = The number of data points ×...
Page 189: Loading Data (Load)
20 Saving and Loading Data Loading Data (Load) You can load waveform data, setup data, waveform zones, polygonal zones, and snapshot waveforms that have been saved by the DLM2000. You can also view information about the saved data files using the File Property menu item. Loading Waveform Data (Waveform) You can load waveform data, including Math1 and Math2 waveforms.
Page 190 Symbol Editor before they can be loaded and used as trigger conditions or as analysis or search conditions on the DLM2000. You can obtain Symbol Editor from the YOKOGAWA webpage (http://www.yokogawa.com/ymi/). Search for the software name “Symbol Editor” on the website to access the download page.
Page 191: File Operations (Utility)
20 Saving and Loading Data File Operations (Utility) You can create folders (in internal memory, USB storage devices, and network drives) and delete, copy, and rename files. Sorting the List (Sort To) Sorts the file list by file name, data size, date, etc. Display Format Selects whether to display a list of files or to display thumbnails.
Page 192: Ethernet Communication (Network Optional)
21 Ethernet Communication (Network Optional) You can configure TCP/IP parameters and use the optional Ethernet interface to perform the following tasks. To use this feature, set the communication interface to Network (from the Utility menu, select Remote Control > Device > Network). TCP/IP TCP/IP settings for connecting to an Ethernet network.
Page 193: Tcp/Ip (Tcp/Ip)
21 Ethernet Communication (Optional) TCP/IP (TCP/IP) Configure the settings that the DLM2000 needs to connect to a network. DHCP DHCP is a protocol that temporarily allocates settings that a PC needs to connect to the Internet. To connect to a network that has a DHCP server, turn the DHCP setting on. When DHCP is turned on, the IP address can be automatically obtained when the DLM2000 is connected to a network.
Page 194: Ftp Server (Ftp/Web Server)
21 Ethernet Communication (Optional) FTP Server (FTP/Web Server) You can connect the DLM2000 as an FTP server to a network. Set the user name and password that will be used by devices on the network to access the DLM2000. Also, set the access timeout value.
Page 195: Web Server (Ftp/Web Server)
21 Ethernet Communication (Optional) Web Server (FTP/Web Server) You can connect the DLM2000 as a Web server to a network. Set the user name and password that will be used by devices on the network to access the DLM2000. Also, set the access timeout value.
Page 196 21 Ethernet Communication (Optional) PC System Requirements A PC running Microsoft Windows 2000 Professional, Microsoft Windows XP Professional, Microsoft Windows 7, or Mac OS X. Operating System Microsoft Windows 2000 Professional, Microsoft Windows XP Professional, Microsoft Windows 7, or Mac OS X (10.4.8) Internal memory 512 MB or more recommended.
Page 197: Mail (Mail)
21 Ethernet Communication (Optional) Mail (Mail) You can send trigger times and other information in emails to a specific email address as an action in the action- on-trigger or GO/NO-GO determination feature. Mail Server (Mail Server) Specify the IP address of the mail server on the network that the DLM2000 will use. In a network with a DNS server, you can specify the host name and domain name instead of the IP address.
Page 198: Network Drive (Net Drive)
21 Ethernet Communication (Optional) Network Drive (Net Drive) You can save waveform data and setup data to a network drive. FTP Server (FTP Server) Specify the IP address of the FTP server on the network that you want to save waveform or setup data to. In a network with a DNS server, you can specify the host name and domain name instead of the IP address.
Page 199: Network Printer (Net Print)
21 Ethernet Communication (Optional) Network Printer (Net Print) You can print screen images on a network printer. The DLM2000 can print to the following printers. HP Inkjet printers HP Laser printers (monochrome) LPR servers (LPR Server) Specify the IP address of the printer server that the DLM2000 will connect to. In a network with a DNS server, you can specify the host name and domain name instead of the IP address.
Page 200: Sntp (Sntp)
21 Ethernet Communication (Optional) SNTP (SNTP) The DLM2000 clock can be set using Simple Network Time Protocol (SNTP). The DLM2000 can be configured to automatically adjust its clock when it is turned on. SNTP Server (SNTP Server) Specify the IP address of the SNTP server that the DLM2000 will use. In a network with a DNS server, you can specify the host name and domain name instead of the IP address.
Page 201: 22 Other Features
22 Other Features Auto Setup (Auto Setup) The auto setup feature automatically sets the SCALE, TIME/DIV, trigger level, and other settings to values that are most suitable for the input signals. This feature is useful when you are not sure what type of signal will be applied to the DLM2000. The auto setup feature will not work properly on some input signals.
Page 202: Returning To The Default Settings (Default Setup)
You can initialize the settings according to the factory default values of the DL1600 series and DL1700 series. Press UTILITY, the Preference soft key, and then the Legacy Mode soft key. Doing so will initialize the following items to the default values of legacy models. Item DLM2000 Series DL1600 Series and DL1700 Series AcqLen 125k 12.5k...
Page 203: Snapshot (Snap Shot)
22 Other Features Snapshot (SNAP SHOT) Retains the currently displayed waveforms on the screen. This feature allows you to update the display without having to stop waveform acquisition. It is a useful feature when you want to compare waveforms. Snapshot waveforms are displayed in white. They move behind normal waveforms after approximately 1 second elapses.
Page 204: Remote Control (Remote Control)
To remotely control the DLM2000 using communication commands through the USB port, select USBTMC and then carry out the following procedure. • Install YOKOGAWA USB TMC (Test and Measurement Class) driver on your PC. For information about how to obtain the YOKOGAWA USB TMC driver, contact your nearest YOKOGAWA dealer. You can also access the YOKOGAWA USB driver download webpage and download the driver (http://tmi.yokogawa.com/service-...
Page 205 22 Other Features Network Connects the DLM2000 to a PC using Ethernet. You must set TCP/IP parameters to connect the DLM2000 to an Ethernet network. Notes about Connections • To connect the DLM2000 to a PC, be sure to use straight cables through a hub. Correct operation is not guaranteed for a one-to-one connection using a cross cable.
Page 206: System Configuration (System Configuration)
22 Other Features System Configuration (System Configuration) You can specify the following settings. • DLM2000 date and time • Language • Click sound on/off • Backlight adjustment • Format Internal Memory • USB Keyboard Language • USB Communication Date and Time (Date/Time) The DLM2000 date and time.
Page 207 22 Other Features Adjusting the Backlight (LCD) You can turn off the LCD backlight or adjust the brightness. Adjusting the Brightness (Brightness) You can adjust the brightness in the range of 1 (darkest) to 8 (brightest). You can prolong the backlight service life by decreasing the backlight brightness or by turning off the backlight when you do not need to view the screen.
Page 208 A connected Windows 7 PC can use the DLM2000 as a read-only USB storage device. You cannot write or delete data. • For information about how to obtain the YOKOGAWA USB TMC driver, contact your nearest YOKOGAWA dealer. You can also access the YOKOGAWA USB driver download webpage and download the driver (http:// tmi.yokogawa.com/service-support/downloads/).
Page 209: Overview (Overview)
The selected self-test starts. If an Error Occurs during a Self-Test If an error occurs even after you carry out the following procedure, contact your nearest YOKOGAWA dealer. • Execute the self-test again several times. • Check that the paper is set properly in the built-in printer and that paper is not jammed.
Page 210 Index Symbol auto setup (UART) ............. 15-11 Page average (history)............18-1, 18-2 ΔT&ΔV cursors ..............11-3 average count ............... 6-3 ΔT cursor ................11-2 averaging mode ..............6-2 ΔV cursor ................11-2 λ ..................17-10 Page Numeric background transparent............19-5 Page backlight ................
Page 211 Index continuous ................12-7 display the logic signal waveform ......... 2-1 copy (file) ................20-15 display the main window (zoom) ........13-2 count(S1) ................9-3 display VT waveform ............8-1 count type ................9-3 display zoom window............13-1 create folder..............20-15 distal/mesial/proximal ............
Page 212 Index list (I2C) ................15-14 Page list (LIN) ................15-8 hard copy ................19-2 list (SPI) ................15-16 harmonic analysis ............... 17-8 list (statistics) ..............12-9 harmonic component ............17-8 list (UART) ................ 15-12 harmonic grouping ............17-10 list display (harmonics) ............17-11 harmonic order ..............
Page 213 Index relationship between the time axis setting, record length, and Page sample rate ................ 6-4 offset ..................1-5 remote control..............22-4 offset-cancel ................. 1-6 remote frame (CAN) ............4-19 offset B ................. 1-5 repetitive sampling mode............6-4 on-resistance ..............17-4 replay ..................
Page 214 Index SOF ..................4-18 trigger point (CAN).............. 4-23 sort..................20-15 trigger point (FlexRay) ............4-43 source waveform (analysis and search) ......15-1 trigger point (LIN)..............4-28 source waveform (automated measurement) ..... 12-1 trigger point (SPI) ............... 4-38 source waveform (go/no-go)..........5-3 trigger point (UART) ............

YOKOGAWA DLM2000 Series User Manual

1 Vertical Axis (Analog Signal)

2 Vertical Axis (Logic Signal)

3 Horizontal Axis (Time Axis)

4 Triggering

5 Executing Actions

6 Waveform Acquisition

7 Display

8 Displaying XY Waveforms

9 Computed and Reference Waveforms

10 Fft

11 Cursor Measurement

12 Automated Measurement of Waveform Parameters

13 Zooming in on Waveforms

14 Searching Waveforms

15 Analyzing and Searching Serial Bus Signals

16 Displaying the Frequency Distribution of a Waveform

17 Power Supply Analysis Feature (Power Analysis Option)

18 Displaying and Searching History Waveforms

19 Printing and Saving Screen Captures

20 Saving and Loading Data

21 Ethernet Communication (Network Optional)

22 Other Features

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