Page 1 Programmer Manual TDS Family Digitizing Oscilloscopes (TDS 410A, 420A, 460A, 520A, 524A, 540A, 544A, 620A, 640A, 644A, 684A, 744A & 784A) 070-8709-07...
Page 2 Commercial Computer Software – Restricted Rights clause at FAR 52.227-19, as applicable. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved.
Page 3 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located.
Page 5: Table Of Contents
Table of Contents Getting Started Overview of the Manual ..........1–1 Setting Up Remote Communications .
Page 6 Table of Contents Appendices Appendix A: Character Charts ....... A–1 Appendix B: Reserved Words .
Page 7 Table of Contents List of Figures Figure 1–1: Common Message Elements ..... . . 1–1 Figure 1–2: Functional Groupings and an Alphabetical List of Commands .
Page 8 Table of Contents List of Tables Table 2–1: BNF Symbols and Meanings ......2–1 Table 2–2: Command Message Elements .
Page 9 Table of Contents Table 3–1: SESR Bit Functions ....... 3–2 Table 3–2: SBR Bit Functions .
Page 10 Table of Contents TDS Family Oscilloscope Programmer Manual...
Page 11: Related Manuals
General Purpose Interface Bus (GPIB) interface. Related Manuals Table i lists other documentation for the TDS 410A, 420A, 460A, 520A, 524A, 540A, 544A, 620A, 640A, 644A, 684A, 744A, & 784A digitizing oscilloscopes. Table i: Other Documentation...
Page 12 Preface Table i: Other Documentation (Cont.) Manual Tek Part Number TDS Service Manual TDS 410A, 420A, & 460A 070–8036–XX TDS 520A, 524A, 540A, & 544A 070–8713–XX TDS 620A, 640A, & 644A 070–8718–XX TDS 684A, 744A, & 784A 070–8992–XX viii TDS Family Oscilloscope Programmer Manual...
Page 13: Figure 1-1: Common Message Elements
Getting Started You can write computer programs that remotely set the oscilloscope front panel controls or take measurements and read those measurements for further analysis or storage. To help you get started with programmng the oscilloscope, this section includes the following: Overview of the Manual –...
Page 14: Figure 1-2: Functional Groupings And An Alphabetical List Of Commands
Getting Started ACQuire:NUMACq? (Query Only) Application Menu Commands Zoom Zoom ACQuire:MODe Alias Commands ACQuire? (Query Only) Acquisition Commands Syntax: . . . ACQuire:MODe ACQuire:NUMACq? Group: . . . ACQuire:NUMAVg ACQuire:NUMEnv Examples: . . . ACQuire:REPEt ACQuire:STATE ACQuire:STOPAfter Commands Grouped in Functional Areas Commands Listed Alphabetically Figure 1–2: Functional Groupings and an Alphabetical List of Commands Status and Events...
Page 15: Figure 1-4: The Disks That Accompany This Manual
The digitizing oscilloscope has a 24-pin GPIB connector on its rear panel, as shown in Figure 1–5. This connector has a D-type shell and conforms to IEEE Std 488.1–1987. Attach an IEEE Std 488.1–1987 GPIB cable (available from Tektronix as part number 012–0991–00) to this connector. GPIB Connector Port Figure 1–5: GPIB Connector Location...
Page 16: Figure 1-6: How To Stack Gpib Connectors
Getting Started If needed, you can stack GPIB connectors as shown in Figure 1–6. Figure 1–6: How to Stack GPIB Connectors GPIB Requirements Observe these rules when you use your digitizing oscilloscope with a GPIB network: Assign a unique device address to each device on the bus. No two devices can share the same device address.
Page 17: Figure 1-7: Typical Gpib Network Configurations
Getting Started GPIB Device GPIB Device GPIB Device GPIB Device GPIB Device GPIB Device GPIB Device Figure 1–7: Typical GPIB Network Configurations Appendix C: Interface Specifications gives more information on the GPIB configuration of the digitizing oscilloscope. Setting the GPIB You need to set the GPIB parameters of the digitizing oscilloscope to match the Parameters configuration of the bus.
Page 18: Figure 1-9: Selecting The Gpib Address In The Gpib Configuration Side Menu
Getting Started 3. Press the Port button in the main menu until it highlights the GPIB selection in the pop-up menu. See Figure 1–9. 4. Press the Configure button in the main menu to display the GPIB Configu- ration side menu. See Figure 1–9. 5.
Page 19: Table 2-1: Bnf Symbols And Meanings
Command Syntax You can control the digitizing oscilloscope through the GPIB interface using commands and queries. This section describes the syntax these commands and queries use. It also describes the conventions the digitizing oscilloscope uses to process them. The next section, entitled Command Groups, lists the commands and queries themselves.
Page 20: Figure 2-1: Command Message Elements
Command Syntax A command message is a command or query name followed by any information the digitizing oscilloscope needs to execute the command or query. Command messages may contain five element types, defined in Table 2–2 and shown in the example in Figure 2–1.
Page 21: Table 2-3: Comparison Of Header Off And On Responses
Command Syntax A command header consists of one or more mnemonics arranged in a hierarchi- cal or tree structure. The first mnemonic is the base or root of the tree and each subsequent mnemonic is a level or branch off the previous one. Commands at a higher level in the tree may affect those at a lower level.
Page 22 Command Syntax You can precede any command with white space characters. White space characters include any combination of the ASCII control characters 00 through 09 and 0B through 20 hexadecimal (0 through 9 and 11 through 32 decimal). The digitizing oscilloscope ignores commands consisting of any combina- tion of white space characters and line feeds.
Page 23 Command Syntax Any commands that follow will be processed as if the star command was not there so will set the acquisition mode to envelope and set the number of acquisitions for averaging to 10. 4. When you concatenate queries, the responses to all the queries are concate- nated into a single response message.
Page 24: Constructed Mnemonics
Command Syntax The end-of-message terminator may be the END message (EOI asserted concurrently with the last data byte), the ASCII code for line feed (LF) sent as the last data byte, or both. The digitizing oscilloscope always terminates messages with LF and EOI. It allows white space before the terminator. For example, it allows CR LF.
Page 25: Argument Types
Commands specify the channel to use as a mnemonic in the header. Symbol Meaning A channel specifier; is either , , , or . For the TDS 410A, which has only two channels, is either or . For the TDS 520A, 524A, and 620A, represent the front-panel inputs labeled AUX 1 and AUX 2 respectively.
Page 26 Command Syntax This is also the preferred format when sending the command to the digitizing oscilloscope though any of the formats will be accepted. This manual represents these arguments as follows: Symbol Meaning Signed integer value Floating point value without an exponent Floating point value with an exponent Most numeric arguments will be automatically forced to a valid setting, either by rounding or truncating, when an invalid number is input unless otherwise noted...
Page 27: Figure 2-2: Block Argument Example
Command Syntax 7. A carriage return or line feed imbedded in a quoted string does not terminate the string, but is treated as just another character in the string. 8. The maximum length of a quoted string returned from a query is 1000 characters.
Page 28: Figure 2-3: Typical Syntax Diagrams
Command Syntax Syntax Diagrams The syntax diagrams in this manual use the following symbols and notation: Circles and ovals contain literal elements. You must send most elements exactly as shown. The command mnemonics are shown in both upper and lower case to distinguish between complete and abbreviated spellings. These elements are not case sensitive.
Page 29: Table 2-4: Acquisition Commands
The alphabetical list provides more detail on each command and starts on page 2–39. The TDS Family Oscilloscope GPIB interface conforms to Tektronix standard codes and formats and IEEE Std 488.2–1987 except where noted. Acquisition Commands Acquisition commands affect waveform acquisition.
Page 30: Table 2-5: Alias Commands
Command Groups Alias Commands Alias commands let you define your own commands as a sequence of standard commands. This is useful when you use the same commands each time you perform a certain task, such as setting up measurements. Table 2–5 lists these commands.
Page 31: Table 2-7: Calibration And Diagnostic Commands
Command Groups Calibration and Diagnostic Commands Calibration and Diagnostic commands let you start the self-calibration and diagnostic routines that are built-into the oscilloscope. The diagnostic test operation includes selecting the test sequence, executing the sequence, and viewing the results. Table 2–7 lists these commands. Table 2–7: Calibration and Diagnostic Commands Header Description...
Page 32: Table 2-9: Display Commands
Command Groups Table 2–8: Cursor Commands (Cont.) Header Description Positions paired cursors. Also, returns settings Return horizontal distance between 1 paired cursors. Return horizontal position of 1 paired cursor Return horizontal position of 2 paired cursor Position the horizontal paired cursor in units of (TDS 4XXA) % of record length Set or return vbar position of the1...
Page 33 Command Groups Table 2–9: Display Commands (Cont.) Header Description Control collision contrast (TDS 524A, 544A, 644A, 684A, & 7XXA) Sets color for math or ref waveform to the color of the waveform content (TDS 524A, 544A, 644A, 684A, & 7XXA) Set color for math or ref waveform to specific (TDS 524A, 544A, 644A, 684A, &...
Page 34: Table 2-10: File System Commands
Command Groups Table 2–9: Display Commands (Cont.) Header Description Waveform dots, vector, infinite persistence, or variable persistence Control the display of the trigger bar/s on screen Control the display of the trigger indicator on screen Remove text from the message window Set size and location of message window Remove and display text in the message window...
Page 35: Table 2-11: Hardcopy Commands
(or time per point) of both the main and delay time bases. You can also set the record lengths. Table 2–12 lists these commands. You may substitute SECdiv for SCAle in the horizontal commands. This provides program compatibility with earlier models of Tektronix digitizing oscilloscopes. Table 2–12: Horizontal Commands...
Page 36 Command Groups Table 2–12: Horizontal Commands (Cont.) Header Description Return delay time parameters Time to wait in delay-runs-after-main mode Time to wait in delay-runs-after-trigger mode Select FastFrame count (TDS 5XXA & 7XXA only) Select length of each FastFrame frame (TDS 5XXA & 7XXA only) Select FastFrame frame to display (TDS 5XXA &...
Page 37: Table 2-13: Limit Test Commands
Command Groups Limit Test Commands The Limit Test commands let you automatically compare each incoming waveform against a template waveform. You set an envelope of limits around a waveform and let the digitizing oscilloscope find the waveforms that fall outside those limits.
Page 38: Table 2-14: Measurement Commands
Command Groups Measurement commands can set and query measurement parameters. You can assign some parameters, such as waveform sources, differently for each measurement readout. Other parameters, such as reference levels, have only one value, which applies to all measurements. Table 2–14: Measurement Commands Header Description Return all measurement parameters...
Page 39: Table 2-15: Miscellaneous Commands
Command Groups Table 2–14: Measurement Commands (Cont.) Header Description Return measurement result Method for calculating reference levels Return reference levels The top level for risetime (90% level) The low level for risetime (10% level) Mid level for measurements Mid level for delay measurements Method to assign levels: either % or absolute volts The top level for risetime (90% level)
Page 40: Rs-232 Commands
Command Groups Table 2–15: Miscellaneous Commands (Cont.) Header Description Learn device setting Lock front panel (local lockout) Change password for User Protected Data Access to change User Protected Data No action; remark only Same as *LRN? Initialize waveforms and setups Set time Perform Group Execute Trigger (GET) Self-test...
Page 41: Table 2-17: Save And Recall Commands
Command Groups itself to the state it was in when you originally saved that setting. Table 2–17 lists these commands. Table 2–17: Save and Recall Commands Header Description Return number of allocated and unallocated data points Return number of allocated data points Return number of unallocated data points Specify the number of allocated data points Delete stored setup...
Page 42: Trigger Commands
Command Groups Table 2–18: Status and Error Commands (Cont.) Header Description Device event status enable Event status enable Return standard event status register Return event code Return event code and message Return number of events in queue Identification Operation complete Return installed options Power-on status clear Query or set User Protected Data...
Page 43: Table 2-19: Trigger Commands
Command Groups Table 2–19: Trigger Commands Header Description Force trigger event; Return parameters Delay trigger level to 50% Delay by time or events Return delay trigger parameters Delay trigger coupling Delay trigger slope Delay trigger source Return delay trigger event parameters Delay by events count Delay trigger level Time for delay by time...
Page 44 Command Groups Table 2–19: Trigger Commands (Cont.) Header Description Logic trigger expected channel state (TDS 5XXA, 6XXA, & 7XXA) Logic trigger expected for channel 4 pattern class (TDS 5XXA, 6XXA, & 7XXA) Main logic pattern trigger condition (TDS 5XXA, 6XXA, & 7XXA) Maximum time the selected pattern may be true and still generate main logic pattern (TDS 5XXA, 6XXA, &...
Page 45 Command Groups Table 2–19: Trigger Commands (Cont.) Header Description Logic trigger thresholds (TDS 5XXA, 6XXA, & 7XXA) Logic trigger on combination true or false (TDS 5XXA, 6XXA, & 7XXA) Main trigger mode Returns pulse trigger parameters (TDS 5XXA, 6XXA, & 7XXA) Pulse trigger class (TDS 5XXA, 6XXA, &...
Page 46 Command Groups Table 2–19: Trigger Commands (Cont.) Header Description Slew rate trigger polarity (TDS 684A & 7XXA) Return slew rate value (TDS 684A & 7XXA) Upper and lower slew rate trigger thresholds (TDS 684A & 7XXA) Upper limit for slew rate pulse (TDS 684A &...
Page 47 Command Groups Table 2–19: Trigger Commands (Cont.) Header Description Return FlexFormat parameters (TDS 5XXA. 6XXA, & 7XXA Option 05) Set FlexFormat frames per second (TDS 5XXA, 6XXA, & 7XXA Option 05) Set FlexFormat video fields (TDS 5XXA, 6XXA, & 7XXA Option 05) Set FlexFormat lines in a frame (TDS 5XXA, 6XXA, &...
Page 48 Command Groups Table 2–19: Trigger Commands (Cont.) Header Description Select color or mono PAL (TDS 5XXA, 6XXA, & 7XXA Option 05) Set video trigger scan rate (TDS 4XXA Option 5) Set video trigger scan period (TDS 4XXA Option 5) Select video trigger source Option 05 Select video trigger standard (TDS 5XXA, 6XXA, &...
Page 49: Table 2-20: Vertical Commands
Table 2–20 lists these commands. command also selects the waveform many commands in other command groups use. You may replace VOLts for SCAle in the vertical commands. This provides program compatibility with earlier models of Tektronix digitizing oscilloscopes. Table 2–20: Vertical Commands Header Description...
Page 50: Waveform Commands
Command Groups Waveform Commands Waveform commands let you transfer waveform data points to and from the digitizing oscilloscope. Waveform data points are a collection of values that define a waveform. One data value usually represents one data point in the waveform record.
Page 51 Command Groups values range from 0 to 255. When the byte width is two, the values range from –32768 to 32767. The defined binary formats also specify the order in which the bytes are transferred. The four binary formats are RIBinary, RPBinary, SRIbinary, and SRPbinary.
Page 52 Command Groups Waveform Preamble Each waveform that you transfer has an associated waveform preamble that contains information such as the horizontal scale, the vertical scale, and other settings in place when the waveform was created. Refer to the WFMPre commands starting on page 2–288 for more information about the waveform preamble.
Page 53: Table 2-21: Waveform Commands
Command Groups Table 2–21: Waveform Commands Header Description Transfer waveform data Waveform data format and location Destination for waveforms sent to digitizing oscilloscope Waveform data encoding method Source of data Starting point in waveform transfer Ending point in waveform transfer Same as DATa:DESTination Byte width of waveform points Return waveform preamble and data...
Page 54 Command Groups Table 2–21: Waveform Commands (Cont.) Header Description Z-axis units Z-axis origin offset Number of points in the curve Format of curve points Trigger position Curve identifier Horizontal sampling interval Horizontal units Vertical scale factor Vertical offset Vertical units Offset voltage 2–36 TDS Family Oscilloscope Programmer Manual...
Page 55: Table 2-22: Zoom Commands
Command Groups Zoom Commands Zoom commands let you expand and position the waveform display horizontally and vertically without changing the time base or vertical settings. Table 2–22 lists these commands. Table 2–22: Zoom Commands Header Description Reset zoom parameters to defaults (TDS 4XXA &...
Page 56 Command Groups 2–38 TDS Family Oscilloscope Programmer Manual...
Page 57: Command Descriptions
Command Descriptions You can use commands to either set instrument features or query instrument values. You can use some commands to do both, some to only set, and some to only query. This manual marks set only commands with the words “No Query Form”...
Page 58 Command Descriptions Group Acquisition Syntax Arguments = 0 turns repetitive mode off. 0 turns repetitive mode on. Examples turns autosave mode on. turns autosave mode off. might return , indicating that autosave mode is on. ACQuire:MODe Sets or queries the acquisition mode of the digitizing oscilloscope. This affects all live waveforms.
Page 59 Command Descriptions Related Commands ACQuire:NUMAVg, ACQuire:NUMENv, CURVe?, DATa:WIDth Syntax For the TDS 4XXA, 5XXA & 7XXA: For the TDS 6XXA: For all TDS: For the TDS 4XXA, 5XXA, & 7XXA: For the TDS 6XXA: Arguments specifies that the displayed data point value is simply the first sampled value that was taken during the acquisition interval.
Page 60 Command Descriptions (for the TDS 4XXA, 5XXA, & 7XXA) specifies Hi Res mode, where the displayed data point value is the average of all the samples taken during the acquisition interval. This is a form of averaging, where the average comes from a single waveform acquisition.
Page 61 Command Descriptions Examples might return , indicating that 350 acquisitions took place since an AC- QUIRE:STATE RUN command was executed. ACQuire:NUMAVg Sets the number of waveform acquisitions that make up an averaged waveform. This is equivalent to setting the Average count in the Acquisition Mode side menu.
Page 62 Command Descriptions Syntax Arguments 0 is the number of waveform acquisitions, from 1 to 2000. The envelope will restart after the specified number of envelopes have been acquired or when the ACQuire:STATE RUN command is sent. = 0 specifies continuous enveloping. NOTE.
Page 63 Command Descriptions Group Acquisition Related Commands ACQuire:STATE, ACQuire:STOPAfter Syntax Arguments = 0 turns repetitive mode off. 0 turns repetitive mode on. Examples turns repetitive mode on. turns repetitive mode off. might return , indicating that repetitive signal acquisition mode is on. ACQuire:STATE Starts or stops acquisitions.
Page 64 Command Descriptions Arguments = 0 stops acquisitions. 0 starts acquisition and display of waveforms. If the command was issued in the middle of an acquisition sequence (for instance averaging or enveloping), restarts the sequence, discarding any data accumulated prior to the .
Page 65 Command Descriptions Arguments specifies that the run and stop state should be determined by the user pressing the front-panel RUN/STOP button. specifies “single sequence” operation, where the digitizing oscillo- scope stops after it has acquired enough waveforms to satisfy the conditions of the acquisition mode.
Page 66 Command Descriptions Arguments = 0 turns alias expansion off. If a defined alias label is sent when ALIas is OFF, an execution error (110, “Command header error”) will be generated. 0 turns alias expansion on. When a defined alias is received, the specified command sequence is substituted for the alias and executed.
Page 67 Command Descriptions provided ALIas:STATE has been turned ON. The ALIas:DEFIne? query returns the definition of a selected alias. Up to 10 aliases can be defined at one time. Aliases can be recursive. That is, aliases can include other aliases with up to 10 levels of recursion. Group Alias Syntax...
Page 68 Command Descriptions ALIas:DELEte (No Query Form) Removes a specified alias. This command is identical to ALIas:DELEte:NAMe. Group Alias Syntax Arguments is the name of the alias you want to remove. Using ALIas:DELEte without specifying an alias causes an execution error. must be a previously defined alias.
Page 69 Command Descriptions Arguments is the name of the alias to remove. Using ALIas:DELEte:NAMe without specifying an alias causes an execution error. must be a previously defined alias. Examples deletes the alias named STARTUP. ALIas:STATE Turns aliases on or off. This command is identical to the ALIas command. Group Alias Syntax...
Page 70 Command Descriptions by commas. Use the *ESR? query to enable the events to be returned. For a complete discussion of the use of these registers, see page 3–1. This command is similar to repeatedly sending *EVMsg? queries to the instrument. Group Status and error Related Commands...
Page 71 Command Descriptions Examples might return indicating that all 50000 data points are allocated to reference memory loca- tion 1. ALLOcate:WAVEform? (Query Only) Returns the number of data points allocated for all four reference memory locations. Group Save and Recall Syntax Examples might return indicating that 500 data points are allocated to each of the first three reference...
Page 72: Table 2-23: Waveform Data Points Supported For Reference Locations
50000 points of data for the reference. No complete references are stored for 500000 data points in the TDS 7XXA. Table 2–23: Waveform Data Points Supported for Reference Locations TDS 520A, TDS 410A, TDS 524A, TDS 620A, TDS 744A,...
Page 73 Command Descriptions Examples reserves 1,000 data points for REF2. might return APPMenu Displays the user-definable Application menu, and the query returns the current Application menu labels and title. This is equivalent to pressing the front-panel APPLICATION button. Group Application Menu Related Commands CLEARMenu, *ESR, EVENT? Syntax...
Page 74 Command Descriptions APPMenu:LABel Removes all user-defined Application menu button labels from the display. The APPMenu:LABel? query returns all the current label settings. Group Application Menu Syntax Arguments removes the main and side menu button labels from the display. Front-pa- nel bezel button presses will continue to generate events. Examples clears the user-defined menu labels from the display.
Page 75 Command Descriptions The TDS displays the label on a single line and centers it, both vertically and horizontally, within the label area. You can embed a line feed character in the string to position the label on multiple lines. You can also use white space tab characters to position the label within a line.
Page 76 Command Descriptions Arguments is the menu button label and can include any of the characters shown in the TDS Character Chart in Appendix A. The maximum length of the label is 1000 characters. The label is displayed in the area to the left of the specified side menu button.
Page 77 Command Descriptions characters varies. The label area is about 12 characters wide and 4 lines high. For a complete list of character widths in pixels, see Table A–1 on page A–1. Examples displays the title “Custom Menu” on the screen. might return for the current application menu title.
Page 78: Table 2-24: Commands That Affect Busy? Response
Command Descriptions BUSY? (Query Only) Returns the status of the digitizing oscilloscope. This command allows you to synchronize the operation of the digitizing oscilloscope with your application program. Synchronization methods are described on page 3–7. Group Status and error Related Commands *OPC, *WAI Syntax Returns...
Page 79 Command Descriptions Group Calibration and Diagnostic Syntax Returns = 0 indicates that the calibration completed without any errors detected. 0 indicates that the calibration did not complete successfully. Examples performs an internal self-calibration and might return to indicate that the calibration was successful.
Page 80 Command Descriptions Arguments sets the channel bandwidth to 20 MHz. sets the channel bandwidth to 100 MHz (All TDS except 684A & 7XXA). sets the channel bandwidth to 250 MHz (TDS 684A & 7XXA only). sets the channel bandwidth to the full bandwidth of the digitizing oscillo- scope.
Page 81 Command Descriptions Arguments sets the specified channel to AC coupling. sets the specified channel to DC coupling. sets the specified channel to ground. Only a flat ground-level waveform will be displayed. Examples establishes AC coupling on channel 1. might return , indicating that channel 3 is set to DC coupling.
Page 82 Command Descriptions Arguments sets the specified channel to 50 impedance. sets the specified channel to 1 M impedance. Examples establishes 50 impedance on channel 1. might return , indicating that channel 3 is set to 1 M impedance. CH<x>:OFFSet Sets or queries the offset, in volts, that is subtracted from the specified input channel before it is acquired.
Page 83: Table 2-25: Offset Ranges For The Tds 4Xxa, 54Xa, 6Xxa, & 7Xxa
Command Descriptions Table 2–25: Offset Ranges for the TDS 4XXA, 54XA, 6XXA, & 7XXA (All Channels) and the TDS 520A & 524A (Channel 1 & Channel 2) using a 1x Probe CH<x>:SCAle OFFSet Range 1 mV/div – 99.5 mV/div 100 mV/div – 995 mV/div 10 V 1 V/div –...
Page 84 Command Descriptions Arguments is the desired position, in divisions from the center graticule. The range is 5 divisions. Examples positions the channel 2 input signal 1.3 divisions above the center of the display. might return , indicating that the current position of channel 1 is at –1.3 divisions.
Page 85 Command Descriptions Syntax Arguments is the gain, in volts per division. The range is 100 mV per division to 1 mV per division when using a 1x probe. Examples sets the channel 4 gain to 100 mV per division. might return , indicating that the current V per division setting of channel 2 is 1 V per division.
Page 86 Command Descriptions CLEARMenu (No Query Form) Clears the current menu from the display. This command is equivalent to pressing the CLEAR MENU button on the front panel. Group Display Syntax Examples clears the menu from the display. *CLS (No Query Form) Clears the digitizing oscilloscope status data structures.
Page 87 Command Descriptions *CLS can suppress a Service Request that is to be generated by an *OPC. This will happen if a hardcopy output or single sequence acquisition operation is still being processed when the *CLS command is executed. CURSor? (Query Only) Returns all current cursor settings.
Page 88 Command Descriptions Arguments specifies horizontal bar cursors that measure volts. removes the cursors from the display. specifies vertical bar cursors that measure time. specifies paired cursors that measure both time and volts. Examples selects vertical bar type cursors. CURSor:HBArs? (Query Only) Returns the current settings for the horizontal bar cursors.
Page 89 Command Descriptions Returns Examples might return for the voltage difference between the two cursors. CURSor:HBArs:POSITION<x> Positions a horizontal bar cursor. Group Cursor Syntax Arguments specifies the cursor position relative to ground, in volts. Examples positions one of the horizontal cursors at 25.0 mV. might return , indicating that one of the horizontal bar cursors is at –64.0 mV.
Page 90 Command Descriptions Arguments has a range of 0 to 100 (%). It specifies the cursor position relative to the vertical range of the selected waveform. Examples might return , indicating cursor 1 is positioned at 45% of the vertical range of the selected waveform. CURSor:HBArs:SELect Selects which horizontal bar cursor is active for front-panel control.
Page 91 Command Descriptions Examples selects the first horizontal bar cursor as the active cursor. returns when the first cursor is the active cursor. CURSor:HBArs:UNIts TDS 4XXA, 5XXA, 6XXA, & 7XXA Only Sets or queries the units for the horizontal bar cursors. This command is equivalent to setting Amplitude in the Cursor menu.
Page 92 Command Descriptions Related Commands CURSor:FUNCtion Syntax Arguments ties the two cursors together as you move the general purpose knob. frees the two cursors to move separately. Examples specifies that the cursors positions move in unison. might return showing the two cursors move in unison. CURSor:PAIred Positions the paired cursors.
Page 93 Command Descriptions Examples specifies the positions of the cursors are at the current DATA:START and DATA:STOP values. might return CURSor:PAIred:HDELTA (Query Only) Queries the hbar (voltage) distance between the first and second paired cursor. This is the absolute value of the vertical position of the first cursor minus the vertical position of the second cursor.
Page 94 Command Descriptions CURSor:PAIred:HPOS2 (Query Only) Queries the horizontal bar (voltage) position of the second paired cursor. Group Cursor Related Commands CURSor:FUNCtion Syntax Examples might return , indicating the second cursor is at –64.0 mV. CURSor:PAIred:POSITION<x> Sets or queries the vertical bar (time) position of the first or second paired cursor. x is either 1 or 2 and refers to the first or second cursor.
Page 95 Command Descriptions Examples specifies the first paired cursor is at 9 s. might return , indicating that the second paired cursor is at 1 s. CURSor:PAIred:POSITION<x>Pcnt TDS 4XXA Only Sets or queries the horizontal position of the paired cursors (x is either 1 or 2) in units of % of record length.
Page 96 Command Descriptions Syntax Arguments specifies the first paired cursor. specifies the second paired cursor. Examples selects the second paired cursor as the active cursor. returns when the first paired cursor is the active cursor. CURSor:PAIred:UNIts Sets or queries the units for the paired cursors. This is equivalent to setting Amplitude in the Cursor menu.
Page 97 Command Descriptions Examples sets the units for the paired cursors to base. returns when the paired cursor units are IRE. CURSor:PAIred:VDELTA (Query Only) Queries the vbar (time) distance between paired cursors. It returns the absolute value of the first cursor less the second cursor horizontal positions. The position can appear in units of seconds, 1/seconds (hertz), or video line numbers (with option 05).
Page 98 Command Descriptions Related Commands DATa:STARt, DATa:STOP, MEASUrement:GATing Syntax Arguments positions the vertical bar cursors at DATa:STARt and DATa:STOP. Examples specifies that the cursors positions are the same as the current DATA:START and DATA:STOP values. might return CURSor:VBArs:DELTa? (Query Only) Returns the time or frequency between the two vertical bar cursors. The units, seconds or Hertz, are specified by the CURSor:VBArs:UNIts command.
Page 99 Command Descriptions Examples might return , indicating that the time between the vertical bar cursors is 1.064 seconds. CURSor:VBArs:POSITION<x> Positions a vertical bar cursor for both vertical bar and paired cursors. The CURSor:VBArs:UNIts command specifies units. The position can appear in units of seconds, 1/seconds (hertz), or video line numbers (with option 05).
Page 100 Command Descriptions Group Cursor Syntax Arguments has a range of 0 to 100 (%). It specifies the cursor position relative to the record length of the selected waveform. Examples might return , indicating cursor 1 is positioned at 45% of the record length of the selected waveform.
Page 101 Command Descriptions specifies the second vertical bar cursor. Examples selects the second vertical bar cursor as the active cursor. returns when the first vertical bar cursor is the active cursor. CURSor:VBArs:UNIts Sets or queries the units for the vertical bar cursors. This command is equivalent to setting Time Units (Horiz Units in the TDS 4XXA) in the Cursor menu.
Page 102 Command Descriptions Arguments specifies seconds as the unit of measure. For the TDS 4XXA, this argument is available only for backward compatibility. If a TDS 4XXA receives this argument, it will convert it to BASE or INVERT depending on the selected waveform.
Page 103 Command Descriptions CURSor:VBArs:UNITSTring? (Query Only) TDS 4XXA Only Queries the unit string as shown on screen for the vertical bar cursor readout. Group Cursor Syntax Examples might return , indicating the units are milliseconds. CURVe Transfers waveform data to and from the digitizing oscilloscope in binary or ASCII format.
Page 104 Command Descriptions Arguments is the waveform data in binary format. The waveform is formatted as: where is the number of y bytes. For example, = 500, then = 3. is the number of bytes to transfer. If width is 1 then all bytes on the bus are single data points. If width is 2 then all bytes on the bus are 2-byte pairs.
Page 105 Command Descriptions DATa Sets or queries the format and location of the waveform data that is transferred with the CURVe command. Since DATa:DESTination and DATa:TARget are equivalent, only DATa:DESTination is returned by the DATa? query. Group Waveform Related Commands CURVE, WAVFrm Syntax Arguments initializes the waveform data parameters to their factory defaults.
Page 106 Command Descriptions Syntax Arguments ) is the reference memory location where the waveform will be stored. Examples stores incoming waveform data in reference memory 3. might return as the reference memory location that is currently selected. DATa:ENCdg Sets or queries the format of the waveform data. This command is equivalent to setting WFMPre:ENCdg, WFMPre:BN_Fmt, and WFMPre:BYT_Or as shown in Table 2–27.
Page 107 Command Descriptions Arguments specifies the ASCII representation of signed integer ( ) data. If this is the value at power-on, the WFMPre values for BN_Fmt, BYT_Or, and ENCdg are set as RP, MSB, and ASC respectively. specifies signed integer data-point representation with the most significant byte transferred first.
Page 108: Table 2-27: Data And Wfmpre Parameter Settings
Command Descriptions Table 2–27: DATa and WFMPre Parameter Settings WFMPre Settings DATa:ENCdg Setting ATa N g e i g :ENCdg :BN_Fmt :BYT_Or Examples sets the data encoding format to be positive integer where the most significant byte is transferred first. might return for the format of the waveform data.
Page 109 Command Descriptions Examples specifies that four waveforms will be transferred in the next CURVE? query. The order that the data will be transferred is CH1, CH2, MATH1, and then REF2. might return , indicating the source for the waveform data that is transferred using a CURVE? query.
Page 110 Command Descriptions DATa:STOP Sets or queries the last data point that will be transferred when using the CURVe? query. This allows the transfer of partial waveforms to the controller. When using the CURVe command, the digitizing oscilloscope will stop reading data when there is no more data to read or when the specified record length has been reached so this command will be ignored.
Page 111 Command Descriptions DATa:DESTINATION command and is included for compatibility with older Tektronix instruments. Group Waveform Related Commands CURVe Syntax DATa:WIDth Sets the number of bytes per data point in the waveform transferred using the CURVe command. Group Waveform Related Commands...
Page 112 Command Descriptions Examples sets the data width to 1 byte per data point for CURVe data. DATE Sets or queries the date that the digitizing oscilloscope can display. Group Miscellaneous Related Commands DISplay: CLOCk, TIMe Syntax Arguments is a date in the form refers to a two-digit month number from 01 to 12.
Page 113 Command Descriptions Arguments is a complete sequence of program messages. The messages can contain only valid commands that must be separated by semico- lons and must follow all rules for concatenating commands (see page 2–4). The sequence must be 80 characters. format is always returned as a query response.
Page 114 Command Descriptions Examples removes all stored setups. All ten storage locations are initialized to the factory default setup. DELEte:WAVEform (No Query Form) Deletes one or all of the stored reference waveforms from memory. The memory allocated for the reference location is then available for reallocation. Memory must be reallocated for the deleted references before any waveform data can be stored in the reference location.
Page 115 Command Descriptions Group Status and Error Related Commands *CLS, *ESE, *ESR?, EVENT?, EVMsg?, *SRE, *STB? Syntax Arguments is a value in the range from 0 to 255. The binary bits of the DESER are set according to this value. For example, sets the DESER to the binary value 11010001 (that is, the most significant bit in the register is set to 1, the next most significant bit to 1, the next bit to 0, etc.).
Page 116 Command Descriptions Related Commands DIAg:RESUlt:LOG? Syntax Returns indicating that all of the selected diagnostic tests have passed. indicating that at least one of the selected diagnostic tests has failed. Examples returns either DIAg:RESUlt:LOG? (Query Only) Returns the internal results log from the last diagnostic test sequence execution. The list contains all modules and module interfaces that were tested along with the pass/fail status of each.
Page 117 Command Descriptions DIAg:SELect:ACQUISition (No Query Form) Selects the acquisition system test sequence that will be run when the DIAg:STATE EXECUte command is sent. This command is equivalent to setting Area in the Utility menu when System is set to Diag/Err. Group Calibration and Diagnostic Syntax...
Page 118 Command Descriptions Arguments selects functional, memory, and register tests. DIAg:SELect:DISplay (No Query Form) Selects the display system test sequence that will be run when the DIAg:STATE EXECUte command is sent. This command is equivalent to setting Area in the Utility menu when System is set to Diag/Err. Group Calibration and Diagnostic Syntax...
Page 119 Command Descriptions DIAg:STATE (No Query Form) Executes the diagnostic tests that have been specified with the DIAg:SELect commands. When the test sequence has completed, any of the modules or module interfaces that failed diagnostics are displayed on the screen and stored in an internal log file.
Page 120 Command Descriptions *PSC 0 Examples executes all the diagnostic tests that have been selected. DISplay? (Query Only) Returns the current display settings. Group Display Syntax Examples might return DISplay:CLOCk Controls the display of the date and time. This is equivalent to setting the Display Date/Time in the Readout Options side menu.
Page 121 Command Descriptions Arguments = 0 removes the clock from the display. 0 displays the clock on the display. Examples sets the display to show time and date. might return indicating that the display shows time and date. DISplay:COLOr:CONTRast TDS 5X4A, 6X4A, & 7XXA Only Turns on or off the collision contrast option.
Page 122 Command Descriptions DISplay:COLOr:MAP:<item name>: BYCONTents TDS 5X4A, 6X4A, & 7XXA Only Determines if the color for a math or reference waveform is set to the color assigned to the waveform contents (the constituent waveform) or to a specific color index. This is equivalent to pressing Map Math Colors or Map Reference Colors on the Color main menu and Color Matches Contents (to select the on state) or Color (to select the off state) on the resulting side menu.
Page 123 Command Descriptions DISplay:COLOr:MAP:<item name>: TO TDS 5X4A, 6X4A, & 7XXA Only Defines the color index to use if setting the color for a math or reference waveform to the color assigned to a specific index. This is similar, but not identical, to pressing Map Math Colors or Map Reference Colors on the Color main menu, pressing Color on the resulting side menu, and entering an index with the general purpose knob or the keypad.
Page 124 Command Descriptions DISplay:COLOr:PALEtte:PERSistence TDS 5X4A, 6X4A, & 7XXA Only Sets the current persistence palette to one of the preset persistence palettes. This is equivalent to selecting Palette from the main Color menu, Persistence Palettes from the resulting side menu, and Temperature, Spectral, or Gray Scale from the next side menu.
Page 125 Command Descriptions Examples sets the current palette to the hardcopy palette. DISplay:COLOr:PALEtte:RESETALL (No Query Form) TDS 5X4A, 6X4A, & 7XXA Only Restores all palettes to their factory default setting. This is equivalent to selecting Restore Colors from the main Color menu and Reset All Palettes to Factory from the resulting side menu.
Page 126 Command Descriptions Examples resets the hardcopy palette to its initial, factory-default settings. DISplay:COLOr:PALEtte:<palette name>:<item name> TDS 5X4A, 6X4A, & 7XXA Only Sets the color of a selected item in a selected palette. Group Display Syntax 2–108 TDS Family Oscilloscope Programmer Manual...
Page 127 Command Descriptions Arguments specifies the display background color. specifies the channel 1 waveform and associated text color. specifies the channel 2 waveform and associated text color. specifies the channel 3 waveform and associated text color. specifies the channel 4 waveform and associated text color. specifies the default math waveforms and associated text color.
Page 128 Command Descriptions specifies the color of the scrollbar. For example, you will find a scrollbar in various file system menus. specifies the desired colors in terms of hue, lightness and saturation values. Hue is the wavelength of light reflected from the surface. It varies continuously along the color spectrum as produced by a rainbow.
Page 129 Command Descriptions Arguments specifies linear interpolation where acquired points are connected with straight lines. specifies sin(x)/x interpolation where acquired points are fit to a curve. Examples sets the interpolation filter type to linear. returns either , indicating the type of interpolation filter. DISplay:FORMat Sets or queries the display format.
Page 130: Table 2-28: Xy Format Pairs
X-Axis Source Y-Axis Source Ch 1 Ch 2 Ch 3 (or AUX 1) Ch 4 (or AUX 2) (All models except TDS 410A) (All models except TDS 410A) Ref 1 Ref 2 Ref 3 Ref 4 sets the display to a voltage versus time format and is the normal mode.
Page 131 Command Descriptions specifies a frame, a grid, and cross hairs. specifies a frame and a grid. specifies a special NTSC frame. specifies a special PAL frame. Examples sets the graticule type to display a frame and a grid. returns when all graticule elements (grid, frame, and cross hairs) are selected.
Page 132 Command Descriptions DISplay:INStavu:STYle TDS 7XXA Only Selects how the data is displayed with InstaVu. Group Display Syntax Arguments displays individual data points. connects adjacent data points. Old points are immediately replaced by new ones. Examples might return indicating that the display shows individual waveform data points.
Page 133 Command Descriptions Arguments specifies the length, in seconds, that the waveform points are displayed on the screen. The range is 250 ms to 10 s. Examples specifies that the waveform points are displayed on the screen for 3 seconds before they disappear. DISplay:INTENSITy? (Query Only) Returns the current intensity settings for different parts of the display.
Page 134 Command Descriptions Arguments ranges from 100 to 250 percent. Examples sets the intensity of the intensified portion of a waveform. DISplay:INTENSITy:OVERAll TDS 4X0A, 5X0A, & 6X0A Only Sets the intensity of the entire display. This command is equivalent to setting Overall in the Display Intensity side menu.
Page 135 Command Descriptions DISplay:INTENSITy:TEXt Sets the intensity of the text and the graticule. This command is equivalent to setting Text/Grat in the Display Intensity side menu. Group Display Syntax Arguments ranges from 20 to 100 percent. Examples sets the intensity of the text to the brightest level. DISplay:INTENSITy:WAVEform Sets the intensity of the waveforms.
Page 136 Command Descriptions DISplay:MODe TDS 7XXA Only Selects whether or not to turn on InstaVu. Group Display Syntax Arguments turns on InstaVu. This mode can help view infrequent deviations in a signal. It only uses a 500 point record length, no averaging, and no enveloping. When you turn on InstaVu, the TDS turns off any active zoom, autosave, limit test, waveform math, FastFrame, and XY display.
Page 137 Command Descriptions Syntax Arguments specifies the length, in seconds, that the waveform points are displayed on the screen. The range is 250 ms to 10 s. Examples specifies that the waveform points are displayed on the screen for 3 seconds before they fade.
Page 138 Command Descriptions leaves acquired data points on the display for a period of time specified by DISplay:PERSistence. connects adjacent data points. Old points are immediately replaced by new ones. causes the display to show acquired (non-interpolated) samples with brighter or different colored dots than the rest of the waveform. Examples sets the display to indefinitely accumulate data points on the screen.
Page 139 Command Descriptions displays a horizontal line in the center of the graticule for each displayed trigger signal. Examples sets the display to show long trigger bar indicator (or indicators). DISplay:TRIGT Controls the display of the trigger indicator. This is equivalent to setting the Display ‘T’...
Page 140 Command Descriptions Group Status and Error Related Commands *CLS, DESE, *ESR?, EVENT?, EVMsg? *SRE, *STB? Syntax Arguments is a value in the range from 0 through 255. The binary bits of the ESER are set according to this value. The power-on default for ESER is 0 if is 1.
Page 141 Command Descriptions Syntax Examples might return the value , showing that the SESR contains binary 11010101. EVENT? (Query Only) Returns from the Event Queue an event code that provides information about the results of the last *ESR? read. EVENT? also removes the returned value from the Event Queue.
Page 142 Command Descriptions Returns The event code and message in the following format: where is the command that caused the error and may be returned when a command error is detected by the digitizing oscilloscope. As much of the command will be returned as possible without exceeding the 60 character limit of the strings combined.
Page 143 Command Descriptions FACtory (No Query Form) Resets the digitizing oscilloscope to its factory default settings. This command is equivalent to selecting Recall Factory Setup in the Waveform Save/Recall menu. Group Miscellaneous Related Commands *PSC, *RCL, RECAll:SETUp, *RST, *SAV, SAVe:SETUp Syntax Setting the digitizing oscilloscope to factory default includes: Clears the Event Status Enable Register.
Page 144 Command Descriptions FILESystem:COPy (No query form) File System Only Copies a named file or files to a new file. The new file may be in a totally separate directory than the old file. Also, you can use wild card characters (*.*) to copy multiple files with one command.
Page 145 Command Descriptions copies the files in the directory in the current directory to the directory on the drive. FILESystem:CWD File System Only Sets or returns the current working directory (CWD) path. Group File system Syntax Arguments is a quoted string that defines the directory name and path. Examples will define as the current directory.
Page 146 Command Descriptions Arguments is a quoted string that defines the file name and path. Input the file path using the form and one or more s are optional. If you do not specify them, the TDS will delete the file in the current directory.
Page 147 Command Descriptions FILESystem:DIR (Query only) File System Only Returns a list of quoted strings. Each string contains the name of a file or directory in the current directory. Group File system Syntax Examples returns a list of files and directories in the default directory. FILESystem:FORMat (No query form) File System Only Formats a named drive.
Page 148 Command Descriptions Group File system Syntax Examples might return as the amount of freespace available if the drive was full. FILESystem:MKDir (No query form) File System Only Make a new directory. Group File system Syntax Arguments is a quoted string that defines the directory. Input the directory using the form and one or more...
Page 149 Command Descriptions Syntax Arguments turns on the file overwrite protection. turns off the file overwrite protection. Examples lets you overwrite existing files. might return indicating you cannot overwrite existing files. FILESystem:PRInt (No query form) File System Only Prints a named file to the named port. Group File system Syntax...
Page 150 Command Descriptions specifies that the hardcopy is sent out the Centronics port (Option 13 RS232/Centronics Hardcopy Interface only). specifies that the hardcopy is sent out the RS232 port (Option 13 RS232/Centronics Hardcopy Interface only). Examples sends the file named out the Centronics port. FILESystem:REName (No query form) File System Only Assigns a new name to a file.
Page 151 Command Descriptions Syntax Arguments is a quoted string that defines the directory. Input the directory using the form and one or more s are optional. If you do not specify them, the TDS will delete the directory in the current directory. stands for a directory name of up to 8 characters and can be followed by a period (“.”) and a 3-character extension.
Page 152 Command Descriptions NOTE. DCL does NOT clear the output queue once a hardcopy is in process. The only way to abort the hardcopy process is to send the HARDCopy ABOrt command. The output queue can then be cleared using DCL. clears the printer output spooler.
Page 153 Command Descriptions directory. stands for a filename of up to 8 characters followed by a period (“.”) and any 3-character extension. You can automatically create different names for files. You do this by using the question mark (?) as a special wildcard character. These stand for numbers the TDS will insert sequentially in the filename.
Page 154 Command Descriptions On monochrome instruments (TDS 4X0A, 5X0A & 6X0A series only), the following formats are mapped to a monochrome near equivalent: For example: if are sent to the oscilloscope, is returned. Examples sets the hardcopy output format to HPGL. might return as the final hardcopy output format.
Page 155 Command Descriptions HARDCopy:LAYout Selects the printing orientation. This is equivalent to setting Layout in the Hardcopy menu. Group Hardcopy Syntax Arguments specifies that the bottom of the hardcopy is along the longest side of the page. specifies that the bottom of the hardcopy is along the short side of the page.
Page 156 Command Descriptions Examples would print each copy made using the hardcopy palette. HARDCopy:PORT Selects where to send the hardcopy data on the next hardcopy command (i.e. HARDCOPY START command). This is equivalent to setting Port in the Hardcopy menu. Group Hardcopy Related Commands HARDCopy, LIMit:HARDCopy...
Page 157 Command Descriptions Examples might return as the selected hardcopy output port. This command is identical to the HEADer query and is included for compatibili- ty with older Tektronix instruments. Group Miscellaneous Syntax HEADer Sets and queries the Response Header Enable State that causes the digitizing oscilloscope to either include or omit headers on query responses.
Page 158 Command Descriptions Arguments 0 sets the Response Header Enable State to true. This causes the digitizing oscilloscope to include headers on applicable query responses. You can then use the query response as a command. = 0 sets the Response Header Enable State to false. This causes the digitizing oscilloscope to omit headers on query responses, so that only the argument is returned.
Page 159 Command Descriptions HORizontal:CLOck TDS 4XXA Only Enables either the internal or external clocks. The query returns whether the clock is set to internal or external. Group Horizontal Syntax Arguments enables the internal clock mode. enables the external clock mode. Examples enables the internal clocks.
Page 160 Command Descriptions Arguments is rounded up to the nearest allowable external clock rate. Examples sets the maximum external clock rate to 50 clocks per second. HORizontal:DELay? (Query Only) Returns all horizontal delayed time base parameters. The commands HORizon- tal:DELay:SECdiv and HORizontal:DELay:SCAle are identical so only HORizontal:DELay:SCAle will be returned.
Page 161 Command Descriptions Arguments specifies that the delayed time base runs a user-specified amount of delay time after the main trigger event. specifies that the delayed time base is triggerable after the main time base triggers. Examples returns either , indicating the delayed time base mode. HORizontal:DELay:SCAle Sets the time per division for the delayed time base.
Page 162 , indicating that the delay time is 1 ms per division. HORizontal:DELay:SECdiv This command is identical to the HORizontal:DELay:SCAle command. It is provided to maintain program compatibility with some older models of Tektronix digitizing oscilloscopes. Group Horizontal Syntax HORizontal:DELay:TIMe Sets or queries the delay time to wait after the main trigger before the delayed time base begins.
Page 163 Command Descriptions Syntax Arguments is the time, in seconds, between the main trigger and the delayed trigger. The range on the TDS 5XXA, 6XXA, & 7XXA is from 16 ns to 250 seconds with a resolution of 4 ns. The range on the TDS 4XXA is from 10 ns to 20 seconds with a resolution of 10 ns.
Page 164 Command Descriptions Arguments is the time, in seconds, between the main trigger and the delayed trigger. The range is from 16 ns (10 ns on the TDS 4XXA) to 250 seconds (20 s on the TDS 4XXA) with a resolution of 4 ns. Examples sets the delay time between the main and delayed time base to 2 ms.
Page 165 Command Descriptions might return , indicating that the delay time is 1 ms. HORizontal:FASTframe:COUNt TDS 5XXA & 7XXA Only Sets or queries FastFrame frame count. This is equivalent to setting FastFrame Setup in the Horizontal menu and the Frame Count menu item in the side menu.
Page 166 Command Descriptions Arguments indicates the frame (segment) length. Examples Sets up the FastFrame mode to acquire frames of 250 samples each. HORizontal:FASTframe:POSition TDS 5XXA & 7XXA Only Display the selected FastFrame frame. This is equivalent to selecting Horiz Pos in the Horizontal menu, selecting the Frame menu item in the side menu, and entering a value with the keypad or the general purpose knob.
Page 167 Command Descriptions The digitizing oscilloscope in FastFrame mode is ready to accept a continuous burst of triggers 400 ms after the controller sends the command. Group Horizontal Syntax Arguments indicates OFF if it’s a 0 or ON if it’s a 1 (or any other nonzero value). means turn on FastFrame.
Page 168 Command Descriptions Arguments indicates OFF if it’s a 0. It indicates ON if it’s a non-zero value. means turn on waveform compress. means turn off waveform compress. Examples turns on waveform compress. HORizontal:MAIn? (Query Only) Returns the time per division of the main time base. The commands HORizon- tal:MAIn:SECdiv and HORizontal:MAIn:SCAle are identical so only HORizon- tal:MAIn:SCAle will be returned.
Page 169 2 s per division. HORizontal:MAIn:SECdiv Sets the time per division for the main time base. This command is identical to the HORizontal:MAIn:SCAle command. It is provided to maintain program compatibility with some older models of Tektronix digitizing oscilloscopes. Group Horizontal Related Commands...
Page 170 Command Descriptions HORizontal:MODe Selects whether the horizontal display uses the main or delayed time base or both. This command is equivalent to setting Time Base in the Horizontal menu. Group Horizontal Related Commands DISplay:INTENSITy:CONTRast Syntax Arguments means that the selected waveform is horizontally scaled relative to the delayed time base.
Page 171 Command Descriptions HORizontal:POSition Positions the waveform horizontally on the display. This is used for both main and delayed time bases. This command is equivalent to adjusting the front-panel Horizontal Position knob or setting the position in the Horizontal Position side menu.
Page 172: Table 2-30: Record Length Values ()
Command Descriptions Table 2–30: Record Length Values (<NR1>) TDS 520A, TDS 524A, TDS 410A, TDS 620A, TDS 540A, TDS 744A, TDS 420A, TDS 640A, Configuration TDS 544A TDS 684A TDS 784A TDS 460A TDS 644A Standard 500, 500, 500, 500,...
Page 173 Command Descriptions HORizontal:SECdiv Sets the time per division for the main time base and is identical to the HORi- zontal:MAIn:SCAle command. It is included here for compatibility purposes. Group Horizontal Syntax HORizontal:TRIGger? (Query Only) Returns the horizontal trigger parameter. Group Horizontal Syntax Examples...
Page 174 Command Descriptions Arguments is from 0 to 100 %, (20% to 80% in the TDS 620A, 640A, & 644A) and is the amount of pretrigger information in the waveform. Examples might return ID? (Query Only) Returns identifying information about the instrument and its firmware. Group Status and Error Related Commands...
Page 175 Command Descriptions Returns The instrument id in the following format: Examples might return the response LIMit:BELl Rings the bell when the waveform data exceeds the limits set in the limit test, if the limit state is on. Group Limit Test Related Commands LIMit:COMPARE:CH<x>, LIMit:STATE Syntax...
Page 176 Command Descriptions returns either or , indicating whether the bell is to ring when any waveform data exceeds the limits specified in the limit test. LIMit:COMPARE:CH<x> Sets or queries the template against which to compare the waveform acquired through the specified channel. The template can be a waveform saved in any of the reference locations REF1 through REF4, or none.
Page 177 Command Descriptions LIMit:COMPARE:MATH<x> TDS 5XXA, 6XXA, & 7XXA Only Sets or queries the template against which to compare a math waveform. The template can be a waveform saved in any of the reference locations REF1 through REF4, or none. Group Limit Test Related Commands CURve,LIMit:TEMPLate, LIMit:TEMPLate:DESTination, LIMit:TEM-...
Page 178 Command Descriptions Group Limit Test Related Commands LIMit:COMPARE:CH<x>, LIMit:STATE, HARDCopy Syntax Arguments 0 turns on the hardcopy operation for the waveform when any waveform data exceeds the limits set by the limit test. = 0 turns off the hardcopy operation. Examples specifies that the hardcopy operation occurs for the waveform when any waveform data exceeds the limits specified in the limit test.
Page 179 Command Descriptions Arguments = 0 turns off limit testing. 0 turns on limit testing. Examples specifies that limit testing of waveforms is in effect. returns either or , indicating whether limit testing of waveforms is in effect. LIMit:TEMPLate (No Query Form) Creates a template which you can use for limit testing.
Page 180 Command Descriptions LIMit:TEMPLate:DESTination Sets or queries the destination reference waveform that the LIMit:TEMPLate STORe command will use. Group Limit Test Related Commands LIMit:COMPARE:CH<x>, LIMit:TEMPLate, LIMit:TEMPLate:SOUrce Syntax Arguments specifies the reference waveform destination in which the template waveform is to be stored. Examples specifies that the template waveform referred to with the LIMit:TEMPLate STORe command is stored as the REF2 waveform.
Page 181 Command Descriptions Arguments specifies that the template waveform is the waveform currently being acquired using the specified channel. specifies that the template waveform is the waveform currently stored as the specified math waveform. specifies that the template waveform is the waveform currently stored as the specified reference waveform.
Page 182 Command Descriptions Arguments is the amount, in horizontal divisions, by which the current waveform is allowed to deviate from the template waveform without exceeding the limits set in the limit test. The range is 0 to 5 divisions. Examples specifies that the current waveform is deemed to be close enough to the template waveform if it is within 1.0 horizontal division.
Page 183 Command Descriptions LOCk Enables and disables all front panel buttons and knobs. There is no front-panel equivalent. Group Miscellaneous Related Commands UNLock, Remote Enable Group, Local Lockout Group Syntax Arguments disables all front panel controls. enables all front panel controls. This is equivalent to the UNLock ALL command.
Page 184: Side Menu
Command Descriptions Group Miscellaneous Related Commands HEADer, SET?, VERBose Syntax NOTE. The *LRN? query always returns a string including command headers, regardless of the setting of the HEADer command. This is because the returned string is intended to be sent back to the digitizing oscilloscope as a command string.
Page 185 You can specify these arguments in any order. <source> refers to a signal channel. Valid choices are: , or (The TDS 410A does not include <window> refers to an FFT window. Valid choices are: , or <scaling> provides vertical scaling. Valid choices are: , or 2–167...
Page 186 Command Descriptions <Phase suppression> is of the range: –100 dB to 100 dB. (available on instruments with the Option 2F Advanced DSP Math only): takes the integral of the selected waveform. Examples adds channel 1 and channel 2, and stores the result in MATH2. inverts the waveform stored in reference memory location 4 storing the result in MATH1.
Page 187 Command Descriptions Arguments specifies the number of times to successively average the math waveform before completing an acquisition. Examples Successively averages math waveform 2 by 10 times. might return 10 indicating 10 math 2 waveforms are successively averaged before a single acquisition occurs. MATH<x>:PROCessing TDS 5XXA, 6XXA, &...
Page 188 Command Descriptions Examples ensures that waveform averaging is not in use on math waveform 1. turns on waveform averaging on math waveform 1. MEASUrement? (Query Only) Returns all measurement parameters. Group Measurement Syntax Examples might return MEASUrement:CLEARSNapshot Removes the measurement snapshot display. Group Measurement Syntax...
Page 189 Command Descriptions Examples MEASUrement:GATing Sets or queries measurement gating. Group Measurement Related Commands CURSor:VBArs Syntax Arguments (or ) turns on measurement gating. (or ) turns off measurement gating. Examples might return showing gating is turned on. It might also return showing gating is turned off.
Page 190 Command Descriptions Syntax Examples might return MEASUrement:IMMed:DELay? (Query Only) Returns information about the immediate delay measurement. Group Measurement Syntax Examples might return MEASUrement:IMMed:DELay:DIREction Sets or queries the starting point and direction that determines the delay “to” edge when taking an immediate delay measurement. Use the MEASUre- ment:IMMed:SOURCE2 command to specify the delay “to”...
Page 191 Command Descriptions Arguments means that the search starts at the end of the waveform and looks for the last rising or falling edge in the waveform. The slope of the edge is specified by MEASUrement:IMMed:DELay:EDGE2. means that the search starts at the beginning of the waveform and looks for the first rising or falling edge in the waveform.
Page 192 Command Descriptions Arguments specifies the falling edge. specifies the rising edge. Examples specifies that the rising edge be used for the immediate delay measurement. returns either MEASUrement:IMMed:DELay:EDGE2 Sets or queries the slope of the edge that is used for the delay “to” waveform when taking an immediate delay measurement.
Page 193 Command Descriptions specifies the rising edge. Examples specifies that the rising edge be used for the immediate delay measurement. returns showing that the falling or negative edge of the waveform is used for the immediate delay measurement. MEASUrement:IMMed:SOURCE[1] Sets or queries the source for all single channel immediate measurements and specifies the source to measure “from”...
Page 194 Command Descriptions MEASUrement:IMMed:SOURCE2 Specifies the source to measure “to” when taking an immediate delay measure- ment or phase measurement. Group Measurement Syntax Arguments is an input channel. is a math waveform. is a reference waveform. Examples sets the waveform in reference memory location 3 as the delay “to” source when making delay measurements.
Page 195 Command Descriptions Arguments is the high value minus the low value. is the area between the curve and ground over the entire waveform. is the time from the first MidRef crossing to the last MidRef crossing. (cycle area) is the area between the curve and ground over one cycle. is the arithmetic mean over one cycle.
Page 196 Command Descriptions is the time that it takes for the falling edge of a pulse to fall from a HighRef value to a LowRef value of its final value. is the reciprocal of the period measured in hertz. is the 100% reference level. is the 0% reference level.
Page 197 Command Descriptions Examples defines the immediate measurement to be a frequency measurement. MEASUrement:IMMed:UNIts? (Query Only) Returns the units for the immediate measurement. Group Measurement Related Commands MEASUrement:IMMed:TYPe Syntax Returns returns for volts, for seconds, for hertz, volts for percent. On the TDS 4XXA, also returns for clocks, for volt-clocks,...
Page 198 Command Descriptions Returns MEASUrement:MEAS<x>? (Query Only) Returns all measurement parameters for the displayed measurement specified by <x>. Group Measurement Syntax Examples might return MEASUrement:MEAS<x>:DELay? (Query Only) Returns the delay measurement parameters for the measurement specified by <x>. Group Measurement Syntax Examples might return MEASUrement:MEAS<x>:DELay:DIREction...
Page 199 Command Descriptions MEASUrement:MEAS<X>:SOURCE2. This command is equivalent to setting the direction in the Delay Edges & Direction side menu. Group Measurement Syntax Arguments means that the search starts at the end of the waveform and looks for the last rising or falling edge in the waveform. The slope of the edge is specified by MEASUrement:MEAS<x>:DELay:EDGE2.
Page 200 Command Descriptions Arguments specifies the falling edge. specifies the rising edge. Examples specifies that the rising edge be used for measurement 3. returns either for measurement 1. MEASUrement:MEAS<x>:DELay:EDGE2 Sets or queries the slope of the edge that is used for the delay “to” waveform when taking a delay measurement.
Page 201 Command Descriptions specifies the rising edge. Examples specifies that the rising edge be used for the second delay measurement. might return showing that the falling or negative edge of the waveform is used for the second measurement. MEASUrement:MEAS<x>:SOURCE[1] Sets or queries the source for all single channel measurements and specifies the source to measure “from”...
Page 202 Command Descriptions MEASUrement:MEAS<x>:SOURCE2 Sets or queries the source to measure “to” when taking a delay measurement or phase measurement. This is equivalent to setting the source in the Delay from Selected Wfm side menu or the Phase from Selected Wfm side menu. Group Measurement Syntax...
Page 203 Command Descriptions Syntax Arguments = 0 turns measurements off. You can also turn the state off by deselecting the source. 0 turns measurements on. Examples turns measurement defined as MEAS1 on. returns either or , indicating the state of MEAS4. MEASUrement:MEAS<x>:TYPe Sets or queries the measurement type for the measurement specified by MEAS<x>.
Page 204 Command Descriptions Arguments is the high value minus the low value or – is the area between the curve and ground over the entire waveform. is the time from the first MidRef crossing to the last MidRef crossing. (cycle area) is the area between the curve and ground over one cycle. is the arithmetic mean over one cycle.
Page 205 Command Descriptions is the time that it takes for the falling edge of a pulse to fall from a HighRef value to a LowRef value of its final value. is the reciprocal of the period measured in hertz. is the 100% reference level. is the 0% reference level.
Page 206 Command Descriptions Examples specifies MEAS3 to calculate the Root Mean Square voltage. MEASUrement:MEAS<x>:UNIts? (Query Only) Returns the units for the measurement specified by MEASUre- ment:MEAS<x>:TYPe. Group Measurement Syntax Returns returns for volts, for seconds, for hertz, volts , or for percent. On the TDS 4XXA, also returns for clocks,...
Page 207 Command Descriptions Returns MEASUrement:METHod Sets or queries the method used to calculate the 0% and 100% reference level. This is equivalent to setting the High-Low Setup in the Measure menu. Group Measurement Syntax Arguments sets the high and low waveform levels statistically using a histogram algorithm.
Page 208 Command Descriptions MEASUrement:REFLevel:ABSolute:HIGH Sets or queries the high reference level, and is the 100% reference level when MEASUrement:REFLevel:METHod is set to ABSolute. This command is equivalent to setting the Reference Levels in the Measure menu. Group Measurement Syntax Arguments is the high reference level, in volts. The default is 0.0 V. Examples sets the high reference level to 1.71 V.
Page 209 Command Descriptions Arguments is the low reference level, in volts. The default is 0.0 V. Examples might return as the low reference level. MEASUrement:REFLevel:ABSolute:MID Sets or queries the mid reference level, and is the 50% reference level when MEASUrement:REFLevel:METHod is set to ABSolute. This command is equivalent to setting the Reference Levels in the Measure menu.
Page 210 Command Descriptions MEASUrement:REFLevel:ABSolute:MID2 Sets or queries the mid reference level for the “to” waveform when taking a delay measurement, and is the 50% reference level when MEASUrement:RE- FLevel:METHod is set to ABSolute. This command is equivalent to setting the Reference Levels in the Measure menu. Group Measurement Syntax...
Page 211 Command Descriptions Arguments specifies that the reference levels are set explicitly using the MEASUrement:REFLevel:ABSolute commands. This method is useful when precise values are required. For instance, when designing to published interface specifications such as RS-232-C. specifies that the reference levels are calculated as a percent relative to HIGH and LOW.
Page 212 Command Descriptions MEASUrement:REFLevel:PERCent:LOW Sets or queries the percent, where 100% is equal to HIGH, that is used to calculate the low reference level when MEASUrement:REFLevel:METHod is set to PERCent. This command is equivalent to setting the Reference Levels in the Measure menu.
Page 213 Command Descriptions Arguments ranges from 0 to 100 percent, and is the mid reference level. The default is 50%. Examples specifies that the mid reference level is set to 60% of HIGH. MEASUrement:REFLevel:PERCent:MID2 Sets or queries the percent, where 100% is equal to HIGH, that is used to calculate the mid reference level for the second waveform specified when taking a delay measurement.
Page 214: Message
Command Descriptions MEASUrement:SNAPShot Displays the measurement snapshot. Group Measurement Syntax Examples MESSage Clears the message window and the MESSage? query returns the current message parameters. Group Display Syntax Arguments removes the message from the message window. This is equivalent to sending Examples clears the message from the window.
Page 215: Figure 2-4: Message Window Coordinates
Command Descriptions Syntax Arguments = 0 to 640, and are pixel positions along the horizontal axis. defines the left and defines the right side of the window. = 0 to 480, and are pixel positions along the vertical axis. defines the top and defines the bottom of the window.
Page 216 Command Descriptions MESSage:SHOW Clears the contents of the message window and displays the new message in the window. Group Display Syntax Arguments is the message and can include any of the characters shown in the TDS Character Chart in Appendix A. The maximum length of the message is 1000 characters.
Page 217 Command Descriptions message string itself is not altered. The entire message can be returned as a query response regardless of what is displayed in the window. Examples displays “Hello world” in the upper left corner of the box (you can define the box size with the MESSAGE BOX command).
Page 218 Command Descriptions Related Commands PASSWord, *PUD Syntax Arguments is the new password. The password can include up to 10 characters. Examples creates a new password for accessing the user protected data. *OPC Generates the operation complete message in the Standard Event Status Register (SESR) when all pending operations finish.
Page 219: Table 2-31: Commands That Generate An Operation Complete Message
Command Descriptions Table 2–31: Commands that Generate an Operation Complete Message Operation Command Automatic scope adjustment AUTOSet EXECute Internal self-calibration *CAL Single sequence acquisition ACQuire:STATE ON or ACQuire:STATE RUN (when ACQuire:STOPAfter is set to SEQuence) Hardcopy output HARDCopy STARt *OPT? (Query Only) TDS 5XXA, 6XXA, &...
Page 220 Command Descriptions Related Commands NEWpass, *PUD Syntax Arguments is the password and can include up to 10 characters. The factory default password is “XYZZY”and is always valid. Examples Enables the *PUB and NEWpass set commands. Disables the *PUD and NEWpass set commands. You can still use the query version of *PUD.
Page 221 Command Descriptions Arguments = 0 sets the power-on status clear flag to false, disables the power-on clear and allows the digitizing oscilloscope to possibly assert SRQ after power-on. 0 sets the power-on status clear flag true. Sending *PSC 1 therefore enables the power-on status clear and prevents any SRQ assertion after power- on.
Page 222 Command Descriptions *RCL (No Query Form) Restores the state of the digitizing oscilloscope from a copy of its settings stored in memory. (The settings are stored using the *SAV command.) This command is equivalent to RECAll:SETUp and performs the same function as the Recall Saved Setup item in the front-panel Save/Recall Setup menu.
Page 223 Command Descriptions Arguments selects the factory setup. is a value in the range from 1 to 10 and specifies a setup storage location. Using an out-of-range value causes an execution error (222, “Data out of range”). (available on instruments with the Option 1F File System) is the location in mass storage memory where the setup will be recalled from.
Page 224: Appendix D: Factory Initialization Settings
Command Descriptions 8 characters followed by a period (“.”) and any 3-character extension. Do not use wild card characters. Examples recalls the waveform stored in the file named TEK00000.WFM to reference location 1. REM (No Query Form) Specifies a comment. This line is ignored by the instrument. Group Miscellaneous Syntax...
Page 225 Command Descriptions The *RST command does not alter the following: The state of the IEEE Std 488.1–1987 interface. The selected IEEE Std 488.1–1987 address of the digitizing oscilloscope. Calibration data that affect device specifications. The Output Queue. The Service Request Enable Register setting. The Standard Event Status Enable Register setting.
Page 226 Command Descriptions RS232:HARDFlagging RS-232/Centronics Hardcopy Interface Only Sets or queries the input and output hard flagging over the RS-232 port. It uses the RFR (Ready For Receive) and CTS (Clear To Send) lines to control data transmission. On output, the oscilloscope transmits data only when CTS is asserted.
Page 227 Command Descriptions Syntax Arguments indicates the parity bit is sent with even parity and bytes received are expected to have even parity. indicates the parity bit is sent with odd parity and bytes received are expected to have odd parity. indicates that no parity bit is sent and none are expected.
Page 228 Command Descriptions Arguments turn on softflagging. turn off softflagging. Examples turns on soft flagging. RS232:STOPBits RS-232/Centronics Hardcopy Interface Only Sets or queries the number of transmission stop bits sent with each character to identify the end of data for that character. Group RS232 Syntax...
Page 229 Command Descriptions Arguments None Examples queries for RS232 settings. It might return: *SAV (No Query Form) (Save) stores the state of the digitizing oscilloscope into a specified memory location. You can later use the *RCL command to restore the digitizing oscilloscope to this saved state.
Page 230 Command Descriptions Related Commands DELEte:SETUp, RECAll:SETUp, *RCL, *SAV Syntax Arguments is a value in the range from 1 to 10 and specifies a location. Using an out-of-range value causes an execution error. Any settings that have been stored previously at this location will be overwritten. (available on instruments with the Option 1F File System) is a quoted string that defines the file name and path.
Page 231 Command Descriptions Arguments is CH<x>, MATH<x>, or REF<x>, and is the waveform that will be saved. is the location where the waveform will be stored. (on instruments with the Option 1F File System) is a quoted string that defines the file name and path. Input the file path using the form and one or more s are optional.
Page 232 Command Descriptions Arguments specifies the internal format. Internal format files have a .wfm extension. specifies the spreadsheet format. Spreadsheet format files have a .CSV extension. specifies the MathCad format. MathCad format files have a .DAT extension. Examples specifies the waveform, when saved, will be stored in a spreadsheet–compatible format.
Page 233 Command Descriptions SELect:<wfm> Controls the display and selection of waveforms. There can be up to eleven waveforms displayed at one time, but only one waveform can be selected at a time. The selected waveform is the waveform that was most recently turned on. This command is equivalent to pressing a front-panel CH or MORE button.
Page 234 Command Descriptions Arguments is CH<x>, MATH<x>, or REF<x>, and is the selected waveform. Examples might return as the selected waveform. SET? (Query Only) Returns a string listing the digitizing oscilloscope settings, except for configura- tion information for the calibration values. You can use this string to return the digitizing oscilloscope to the state it was in when you made the SET? query.
Page 235 Command Descriptions *SRE (Service Request Enable) sets and queries the bits in the Service Request Enable Register (SRER). For a complete discussion of the use of these registers, see page 3–1. Group Status and Error Related Commands *CLS, DESE, *ESE, *ESR?, EVENT?, EVMSg?, FACtory, *PSC, *STB? Syntax Arguments is a value in the range from 0 to 255.
Page 236 Command Descriptions Related Commands *CLS, DESE, *ESE, *ESR?, EVENT?, EVMSg?, FACtory, *SRE Syntax Returns Examples might return the value , showing that the SBR contains the binary value 01100000. TEKSecure Initializes both waveform and setup memories. This overwrites any previously stored data.
Page 237 Command Descriptions Syntax Arguments is a date in the form refers to the hour number from 01 to 24. refers to the minute number in the hour from 00 to 59. refers to the seconds number in the minute from 00 to 59. There must be a colon after the and after the Use two digits for each of the...
Page 238 Command Descriptions TRIGger:DELay Sets the delayed trigger level and returns the current delayed trigger parameters. Group Trigger Syntax Arguments sets the delayed trigger level to half way between the MIN and MAX amplitudes of the trigger source input. This is equivalent to selecting Set to 50% in the Delayed Edge Level side menu.
Page 239 Command Descriptions TRIGger:DELay:BY Selects whether the delayed trigger occurs after a specified number of events or a specified period of time after the main trigger. This is equivalent to setting Delay by in the Delayed Trig menu. Group Trigger Related Commands TRIGger:DELay:EVENTS:COUNt, TRIGger:DELay:TIMe Syntax (TDS 5XXA, 6XXA, &...
Page 240 Command Descriptions Examples might return TRIGger:DELay:EDGE? (Query Only) Returns the coupling, slope, and source for the delayed trigger. Group Trigger Syntax Examples might return TRIGger:DELay:EDGE:COUPling Selects the type of coupling for the delayed trigger. This command is equivalent to selecting Coupling in the Delayed Trig menu. Group Trigger Syntax...
Page 241 Command Descriptions Arguments selects AC trigger coupling (not on TDS 684A & 7XXA). selects DC trigger coupling. coupling removes the high frequency components of the DC signal (not on the TDS 684A & 7XXA). coupling removes the low frequency components of the AC signal (not on the TDS 684A &...
Page 242 Command Descriptions Examples might return , indicating that the delayed trigger occurs on the rising edge. TRIGger:DELay:EDGE:SOUrce Selects the source for the delayed trigger. This command is equivalent to selecting Source in the Delayed Trig menu. Group Trigger Syntax (not available on TDS 520A & 524A) Arguments specifies an external trigger using the Auxiliary Trigger Input...
Page 243 Command Descriptions Examples might return TRIGger:DELay:EVENTS:COUNt Sets or queries the number of events that must occur before the delayed trigger occurs when TRIGger:DELay:BY is set to EVENTS. This is equivalent to setting the Delay by Events count in the Delayed Edge Delay side menu. Group Trigger Syntax...
Page 244 Command Descriptions Arguments specifies a preset ECL level of –1.3 V. specifies a preset TTL level of 1.4 V. is the delayed trigger level, in volts. Examples sets the delayed trigger level to 2 mV. TRIGger:DELay:TIMe Sets or queries the delay time when HORizontal:DELay:MODe is set to TRIGAfter.
Page 245 Command Descriptions Examples sets the delay time to 4 s. TRIGger:DELay:TYPe Sets or queries the type of delayed trigger. Group Trigger Syntax Arguments is a normal trigger. A trigger event occurs when a signal passes through a specified voltage level in a specified direction. Use the TRIGger:DELay:LEVel and TRIGger:DELay:EDGE:SLOpe commands to set the voltage level and direction respectively.
Page 246 Command Descriptions Arguments sets the main trigger level to half way between the MIN and MAX amplitudes of the trigger source input. This is equivalent to pressing the front-panel SET LEVel TO 50% button. Examples sets the main trigger level mid way between MAX and MIN. TRIGger:MAIn:EDGE? (Query Only) Returns the trigger coupling, source, and slope for the main edge trigger.
Page 247 Command Descriptions Arguments selects AC trigger coupling. selects DC trigger coupling. coupling removes the high frequency components of the DC signal. coupling removes the low frequency components of the AC signal. selects DC low sensitivity. It requires added signal amplitude for more stable, less false triggering.
Page 248 Command Descriptions Examples sets the main edge trigger to occur on the rising slope. TRIGger:MAIn:EDGE:SOUrce Sets or queries the source for the main edge trigger. This is equivalent to setting Source in the Trigger menu. Group Trigger Syntax (not available on TDS 520A & TDS 524A) Arguments specifies one of the input channels.
Page 249 Command Descriptions Syntax Examples for the TDS 684A and 7XXA, might return or, for other TDS 4XXA, 5XXA, and 6XXA, might return TRIGger:MAIn:HOLdoff:ACTUal? (Query Only) TDS 684A and 7XXA Only Returns the main trigger holdoff value in seconds. This is equivalent to selecting Mode &...
Page 250 Command Descriptions Arguments enables the user to set the holdoff time. automatically calculates a holdoff time to use. This time is typically equivalent to the greater of screen (5 divisions) of time or 250 ns. The maximum value is 12 seconds. For example, if the oscilloscope is set to 1 msec/division then the default holdoff will be 1 msec/division 25 divs = 25 msec.
Page 251 Command Descriptions Examples sets the holdoff time to be 10 seconds. TRIGger:MAIn:HOLdoff:VALue Not in TDS 684A & 7XXA Sets or queries the main trigger holdoff value. This is equivalent to setting Holdoff in the Mode & Holdoff side menu. Group Trigger Syntax Arguments...
Page 252 Command Descriptions Arguments specifies a preset ECL level of –1.3 V. specifies a preset TTL level of 1.4 V. is the main trigger level, in volts. Examples might return , indicating that the main edge trigger is set to 1.4 V. TRIGger:MAIn:LOGIc? (Query Only) TDS 5XXA, 6XXA, &...
Page 253 Command Descriptions Syntax (TDS 684A & 7XXA only) Arguments means that the instrument triggers when the specified logical combina- tions of channels 1, 2, 3, and 4 are met. means that the instrument triggers when the specified conditions of channels 1, 2, and 3 are met after the channel 4 condition is met. means the oscilloscope will trigger on the setup and hold violations between a data source and a clock source (TDS 684A &...
Page 254 Command Descriptions Arguments specifies that the instrument will trigger if all the conditions are true. specifies that the instrument will trigger if any of the conditions are false. specifies that the instrument will trigger if all of the conditions are false. specifies that the instrument will trigger if any of the conditions are true.
Page 255 Command Descriptions TRIGger:MAIn:LOGIc:INPut:CH<x> TDS 5XXA, 6XXA, & 7XXA Only Sets or queries the main logic trigger input for the specified channel. The channel is specified by <x> and is 1, 2, or 3. This is equivalent to setting the inputs in the Logic Pattern Inputs side menu. Group Trigger Related Commands...
Page 256 Command Descriptions Syntax Arguments specifies logic high. specifies logic low. specifies a do not care state. Examples sets the main logic trigger input to logic low for channel 4 when the logic class is set to might return , indicating that the logic input for channel 4 is do not care. TRIGger:MAIn:LOGIc:PATtern:WHEn TDS 5XXA, 6XXA, &...
Page 257: Figure 2-5: Lessthan And Morethan Arguments
Command Descriptions Arguments specifies the trigger to occur when the pattern becomes true. specifies the trigger to occur when the pattern becomes false. specifies trigger to occur if the specific pattern is true less than the LESSLimit. (see Figure 2–5 and ) Trigger is evaluated at the true-false transition.
Page 258 Command Descriptions Arguments time to hold pattern true. TRIGger:MAIn:LOGIc:PATtern:WHEn:MORELimit TDS 5XXA, 6XXA, & 7XXA Only Sets or queries the minimum time the selected pattern may be true and still generate a main logic pattern trigger. Group Trigger Syntax Arguments time to hold pattern true. TRIGger:MAIn:LOGIc:SETHold:CLOCk:EDGE TDS 684A &...
Page 259 Command Descriptions Arguments specifies falling edge. specifies rising edge. Examples specifies the polarity as the rising edge. TRIGger:MAIn:LOGIc:SETHold:CLOCk:LEVel TDS 684A & 7XXA only Sets or queries the main logic setup/hold clock voltage trigger level. This is equivalent to selecting Levels from the main Trigger menu and Clock Level in the resulting side menu.
Page 260 Command Descriptions TRIGger:MAIn:LOGIc:SETHold:CLOCk:SOUrce TDS 684A & 7XXA Only Sets or queries the source for the clock for the main logic trigger setup/hold input. The channel is specified by <x> and is 1, 2, 3, or 4. This is equivalent to to selecting Define Clock from the main Trigger menu and CH1, CH2, CH3, or CH4 in the resulting side menu.
Page 261 Command Descriptions Arguments specifies a preset ECL level of –1.3 V. specifies a preset TTL level of 1.4 V. is the main trigger level, in volts. Examples sets the main logic setup/hold data level to 1.4 volts. TRIGger:MAIn:LOGIc:SETHold:DATa:SOUrce TDS 684A & 7XXA Only Sets or queries the data channel for the main logic trigger set/hold input.
Page 262 Command Descriptions Examples selects Channel 2 as the source for the main logic trigger set/hold. TRIGger:MAIn:LOGIc:SETHold:HOLDTime TDS 684A & 7XXA only Sets or queries the main logic trigger hold time. This is equivalent to to selecting Setup/Hold Times from the main Trigger menu and Hold Time in the resulting side menu.
Page 263 Command Descriptions Arguments specifies the setup time setting in seconds. Positive values occur before the clock edge. Negative values occur after the clock edge. Examples sets the main logic trigger sethold time to 600 nanoseconds. TRIGger:MAIn:LOGIc:STATE:INPut:CH4 TDS 5XXA, 6XXA, & 7XXA Only Sets or queries the main logic trigger input for channel 4.
Page 264 Command Descriptions TRIGger:MAIn:LOGIc:STATE:WHEn TDS 5XXA, 6XXA, & 7XXA Only Sets or queries the main logic state trigger. Group Trigger Syntax Arguments specifies the trigger to occur when the condition is met on the fourth channel and the pattern of the first three channels are at the desired states. TRIGger:MAIn:LOGIc:THReshold? (Query Only) TDS 5XXA, 6XXA, &...
Page 265 Command Descriptions TRIGger:MAIn:LOGIc:THReshold:CH<x> TDS 5XXA, 6XXA, & 7XXA Only Sets or queries the main logic trigger threshold voltage for the channel specified by <x>. This is equivalent to setting the thresholds in the Logic State Threshold and Logic Pattern Threshold side menus. Group Trigger Syntax...
Page 266 Command Descriptions Examples specifies that the main logic trigger when the logic pattern is true. TRIGger:MAIn:MODe Sets or queries the main trigger mode. This command is equivalent to selecting Mode & Holdoff in the Trigger menu. Group Trigger Syntax Arguments generates a trigger if a trigger is not detected within a specific time period.
Page 267 Command Descriptions Syntax Examples might return as the current main pulse trigger parameters. TRIGger:MAIn:PULse:CLAss TDS 5XXA, 6XXA, & 7XXA Only Sets or queries the type of pulse to trigger on. This command is equivalent to selecting Class in the Trigger menu. Group Trigger Syntax...
Page 268 Command Descriptions triggers when a pulse is found that has the specified polarity and is either inside or outside the limits as specified by TRIGger:MAIn:PULse: WIDth:LOW- Limit and TRIGger:MAIn:PULse:WIDth:HIGHLimit. The polarity is selected using the TRIGger:MAIn:PULse:WIDth:POLarity command. triggers when the slew rate of the source violates the specified conditions (TDS 684A &...
Page 269 Command Descriptions Arguments specifies that the digitizing oscilloscope will trigger only on pulses that are narrower than the specified width when the main trigger type is set to pulse glitch. The width is specified using TRIGger:MAIn:PULse:GLItch:WIDth command. specifies that the digitizing oscilloscope will trigger only on pulses that are wider than the specified width when the main trigger type is set to pulse glitch.
Page 270 Command Descriptions TRIGger:MAIn:PULse:GLItch:WIDth TDS 5XXA, 6XXA, & 7XXA Only Sets or queries the width for the main pulse glitch trigger. This command is equivalent to selecting Polarity & Width in the Trigger menu. Group Trigger Syntax Arguments is the width of the glitch, in seconds. Examples sets the width of the glitch to 15 s.
Page 271 Command Descriptions TRIGger:MAIn:PULse:RUNT:POLarity TDS 5XXA, 6XXA, & 7XXA Only Sets or queries the polarity for the main pulse runt trigger. This command is equivalent to selecting Polarity in the Trigger menu. Group Trigger Syntax Arguments indicates that the falling edge crosses the high threshold and the rising edge recrosses the high threshold without either edge ever crossing the low threshold.
Page 272 Command Descriptions Examples might return TRIGger:MAIn:PULse:RUNT:THReshold:BOTh TDS 684A & 7XXA Only Sets or queries the trigger level switching thresholds for the main pulse runt trigger. This command is equivalent to setting Set to TTL or Set to ECL in the Main Pulse Runt Trigger menu’s Thresholds side menu item.
Page 273 Command Descriptions Arguments is the threshold, in volts. Examples sets the upper limit of the pulse runt trigger to 120 mV. TRIGger:MAIn:PULse:RUNT:THReshold:LOW TDS 5XXA, 6XXA, & 7XXA Only Sets or queries the lower limit for the main pulse runt trigger. This command is equivalent to setting the threshold in the Pulse Runt Threshold side menu.
Page 274 Command Descriptions TRIGger:MAIn:PULse:RUNT:WHEn TDS 684A & 7XXA Only Sets or queries the type of pulse width the trigger checks for when it uncovers a runt. This is equivalent to to selecting Trigger When from the main Trigger’s Pulse, Runt menu and Occurs or Wider Than in the resulting side menu. Group Trigger Syntax...
Page 275 Command Descriptions Arguments is the minimum width in seconds. Examples sets the minimum width of the pulse runt trigger to 15 s. TRIGger:MAIn:PULse:SLEWRate:DELTATime TDS 684A & 7XXA Only Sets or queries the delta time used in calculating the slew rate trigger. This is equivalent to to selecting Trigger When from the main Trigger’s Slew Rate menu and Delta Time in the resulting side menu.
Page 276 Command Descriptions TRIGger:MAIn:PULse:SLEwrate:POLarity TDS 684A & 7XXA Only Sets or queries the polarity for the main pulse slew rate trigger. This command is equivalent to selecting Polarity in the Trigger menu with Type set to SlewRate. Group Trigger Syntax Arguments indicates that a pulse edge must traverse from the upper (most positive) to lower (most negative) level for slew rate triggering to occur.
Page 277 Command Descriptions Syntax Examples Returns the slew rate. It is given as an appropriate amount of volts per second. For example, would represent a slew rate of 1.2 megavolts/second. TRIGger:MAIn:PULse:SLEwrate:THReshold:BOTh TDS 684A & 7XXA Only Sets the upper and lower slew rate trigger thresholds. This is equivalent to to selecting Thresholds from the main Trigger’s Slew Rate menu and entering a value in the resulting side menu’s High Threshold or Low Threshold items.
Page 278 Command Descriptions Group Trigger Syntax Arguments is the threshold, in volts. Examples sets the upper limit of the pulse slew rate trigger to 120 mV. TRIGger:MAIn:PULse:SLEwrate:THReshold:LOW TDS 684A & 7XXA Only Sets or queries the lower (most negative) limit of the two threshold levels that a pulse edge must traverse for the slew rate trigger to occur.
Page 279 Command Descriptions Examples sets the lower limit of the pulse slew rate trigger to 50 mV. TRIGger:MAIn:PULse:SLEwrate:WHEn TDS 684A & 7XXA Only Sets or queries whether to check for a slewing signal that is faster or slower than the specified delta time. This is equivalent to to selecting Trigger When from the main Trigger’s Slew Rate menu and entering a value in the resulting side menu’s Trig if Less Than or Trig if Greater Than items.
Page 280 Command Descriptions Syntax Arguments specifies one of the input channels. Examples selects Channel 2 as the source for the main pulse trigger. TRIGger:MAIn:PULse:WIDth? (Query Only) TDS 5XXA, 6XXA, & 7XXA Only Returns the width parameters for the main pulse width trigger. Group Trigger Syntax...
Page 281 Command Descriptions Syntax Arguments is the upper limit, in seconds. TRIGger:MAIn:PULse:WIDth:LOWLimit TDS 5XXA, 6XXA, & 7XXA Only Sets or queries the lower limit for the main pulse width trigger. This is equiva- lent to setting the Lower Limit in the Pulse Width Trig When side menu. Group Trigger Syntax...
Page 282 Command Descriptions Syntax Arguments specifies a negative pulse. specifies a positive pulse. TRIGger:MAIn:PULse:WIDth:WHEn TDS 5XXA, 6XXA, & 7XXA Only Selects the condition when the trigger occurs. This is equivalent to selecting the condition in the Pulse Width Trig When side menu. Group Trigger Syntax...
Page 283 Command Descriptions TRIGger:MAIn:PULse:WIDth:HIGHLimit and TRIGger:MAIn:PULse:WIDth:LOWLimit commands respectively. Examples returns either , indicating the conditions for generating a pulse trigger. TRIGger:MAIn:TYPe Sets or queries the type of main trigger. This is equivalent to setting Type in the Trigger menu. Group Trigger Syntax (Note: only the TDS 5XXA, 6XXA, &...
Page 284 Command Descriptions Examples might return indicating that the main trigger type is a pulse trigger. TRIGger:MAIn:VIDeo? (Query Only) Option 5 Only Returns the main video trigger parameters. Group Trigger Syntax Examples might return: as the current main video trigger parameters. TRIGger:MAIn:VIDeo:BY TDS 4XXA Option 5 Only Sets or queries the video trigger delay mode.
Page 285 Command Descriptions Arguments TIMe specifies a delay by time. LINES specifies a delay by a number of video lines. For the TDS 4XXA, this argument is available only for backward compatibility. If the TDS 4XXA receives this argument, it will convert it to LINE. The TDS 4XXA will not output this argument in response to a query.
Page 286 Command Descriptions argument, it will convert it to ODD. The TDS 4XXA will not output this argument in response to a query. FIELD2 specifies interlaced video field 2. For the TDS 4XXA, this argument is available only for backward compatibility. If the TDS 4XXA receives this argument, it will convert it to EVEN.
Page 287 Command Descriptions TRIGger:MAIn:VIDeo:FIELDType TDS 5XXA, 6XXA, & 7XXA Option 5 Only Sets or queries the field the video trigger acts on. This is equivalent to pressing Field in the video main menu and then Field, Odd, Even or All in the side menu.
Page 288 Command Descriptions Examples might return: as the flexible-format video trigger parameters. TRIGger:MAIn:VIDeo:FLEXformat:FIELDRATE TDS 5XXA, 6XXA, & 7XXA Option 5 Only Sets or queries the flexible-format video frames per second (e.g. 59.94 frames per second for 1050 and 50 for 1250). This is equivalent to selecting Setup from the video main menu (with FlexFmt as the Standard), Field Rate from the side menu, and entering a value with the keypad or the general purpose knob.
Page 289 Command Descriptions Group Trigger Syntax Arguments the number of fields in the standard. Examples returns the number of fields in the format. TRIGger:MAIn:VIDeo:FLEXformat:LINES TDS 5XXA, 6XXA, & 7XXA Option 5 Only Sets or queries the flexible-format video lines in a frame. This is equivalent to pressing Setup from the video main menu (with FlexFmt as the Standard), Lines from the side menu, and entering the value with the keypad or the general purpose knob.
Page 290 Command Descriptions Examples returns the specified number of lines. TRIGger:MAIn:VIDeo:FLEXformat:NEGSyncwidth TDS 5XXA, 6XXA, & 7XXA Option 5 Only Sets or queries the flexible-format negative sync width. The HDTV horizontal sync is a tri-level sync. The first of the two consecutive sync pulses used is negative and the second is positive.
Page 291 Command Descriptions Group Trigger Syntax Arguments the v1 starttime. Examples returns the specified HDTV v1starttime. TRIGger:MAIn:VIDeo:FLEXformat:V1STOptime TDS 5XXA, 6XXA, & 7XXA Option 5 Only Sets or queries the time from t to the trailing edge (positive) of the first negative vertical sync pulse.
Page 292 Command Descriptions Examples returns the specified v1stoptime. TRIGger:MAIn:VIDeo:FLEXformat:V2STArttime TDS 5XXA, 6XXA, & 7XXA Option 5 Only Sets or queries the time from the positive edge of the tri-sync pulse for the last line in the selected field (t ) to the leading edge (positive) of the second vertical sync pulse.
Page 293 Command Descriptions Group Trigger Syntax Arguments the v2 stoptime. Examples returns the specified v2 stoptime. TRIGger:MAIn:VIDeo:HDTv TDS 5XXA, 6XXA, & 7XXA Option 5 Only Sets or queries the high definition TV frame rate. This is equivalent to toggling HDTV from the Video main-menu Standard pop-up, pressing Format, and then selecting a frame rate from the side menu.
Page 294 Command Descriptions Examples TRIGGER:MAIN:VIDEO:HDTV 787 specifies 787/59.94/2:1 format. TRIGger:MAIn:VIDeo:HOLdoff? (Query Only) TDS 4XXA Option 5 Only Returns the video trigger holdoff value. Group Trigger Syntax Examples might return TRIGger:MAIn:VIDeo:HOLdoff:VALue TDS 4XXA Option 5 Only Sets or queries the video trigger holdoff value. This is equivalent to setting Holdoff in the Mode &...
Page 295 Command Descriptions Examples set the holdoff value to be 10% of the holdoff range. TRIGger:MAIn:VIDeo:INTERLAce TDS 4XXA Option 5 Only Sets or queries the video trigger interlace format. This is equivalent to setting Interlace in the Scan Rate and Interlace main menu of the video trigger menu when Class is set to Custom.
Page 296 Command Descriptions Arguments specifies a number of lines to delay by. Examples selects 5 lines for the desired delay period. TRIGger:MAIn:VIDeo:LINES TDS 4XXA Option 5 Only Sets or queries the video trigger delay in terms of a number of lines. This is equivalent to entering data in the Line item in the Video TV Delay Mode side menu.
Page 297 Command Descriptions Syntax Arguments MONo specifies mode for noncolor signals. COLOr specifies mode for color field triggering and enables numeric triggering. Examples specifies numeric fields are invalid. TRIGger:MAIn:VIDeo:PAL TDS 5XXA, 6XXA, & 7XXA Option 5 Only Sets or queries the PAL video trigger mode selection. This is equivalent to toggling 625/PAL in the video main-menu pop-up, Mode in the main menu, and a side menu item (PAL, Mono, or SECAM).
Page 298 Command Descriptions specifies mode for SECAM signals. Examples specifies non-color PAL signals. TRIGger:MAIn:VIDeo:SCAN TDS 4XXA Option 5 Only Sets or queries the video trigger scan parameters. This is equivalent to using the Video Scan Parameters side menu. Group Trigger Syntax Arguments RATE1 specifies a 15 to 20 kHz video line rate.
Page 299 Command Descriptions Group Trigger Syntax TRIGger:MAIn:VIDeo:SOUrce Option 05 Only Sets or queries the source for the main video trigger. This is equivalent to selecting the Source in the video main menu and a desired channel from the side menu. Group Trigger Syntax Arguments...
Page 300 Command Descriptions Syntax Arguments specifies the NTSC 525/59.94/2:1 standard. specifies the PAL 625/59.94/2:1 standard. allows selection of the following HDTV formats: 787/59.94/1:1, 1050/59.94/2:1, 1050/59.94/2:1, 1125/60/2:1, 1250/50/2:1. allows the user to specify the video parameters. The default table is 1050/59.94/2:1. Examples selects the NTSC video format.
Page 301 Command Descriptions Arguments specifies a positive going voltage. specifies a negative going voltage. Examples selects a positive going voltage for the desired synchronization pulse. TRIGger:MAIn:VIDeo:SYStem TDS 4XXA Option 5 Only Sets or queries the video trigger class. This is equivalent to selecting the class in the Video Class side menu of the Video menu.
Page 302 Command Descriptions CUSTom selects a condition that adheres to the frequency range of the video signal as you have defined them from the available ranges. Examples selects triggering to occur on an NTSC compatible signal. TRIGger:MAIn:VIDeo:TIMe TDS 4XXA Option 5 Only Sets or queries the video trigger delay time.
Page 303 Command Descriptions Returns indicates that the instrument is acquiring pretrigger information. All triggers are ignored when TRIGger:STATE is ARMING. indicates that the digitizing oscilloscope is in auto mode and acquires data even in the absence of a trigger. (TDS 5XXA and 7XXA only) indicates that the instrument is in FastFrame mode.
Page 304 Command Descriptions Examples immediately executes all commands that have been defined by *DDT. *TST? (Query Only) (Self-Test) Tests the GPIB interface and returns a 0. Group Miscellaneous Syntax Returns and is always 0. UNLock (No Query Form) Unlocks the front panel. This command is equivalent to LOCk NONe. NOTE.
Page 305 Command Descriptions VERBose Sets and queries the Verbose State that controls the length of keywords on query responses. Keywords can be both headers and arguments. This command does not affect IEEE Std 488.2-1987 Common Commands (those starting with an asterisk). Group Miscellaneous Related Commands...
Page 306 Command Descriptions Related Commands BUSY?, *OPC Syntax WAVFrm? (Query Only) Returns WFMPre? and CURVe? data for the waveform or waveforms as specified by the DATa:SOUrce command. This command is equivalent to sending WFMPre?; CURVe? TDS 4XXA: when the TDS 4XXA is in external clock mode, the time-per-div field will contain Group Waveform...
Page 307 Command Descriptions Returns The format of the response is: WFMPre:BIT_Nr Returns the number of bits per binary waveform point for the first ordered waveform as specified by the DATa:SOUrce command. The WFMPre:BIT_Nr command is ignored on input. Group Waveform Related Commands DATa:WIDth, WFMPre:BYT_Nr Syntax Arguments...
Page 308 Command Descriptions Group Waveform Related Commands DATa:ENCdg, WFMPre:BYT_Or, WFMPre:ENCdg Syntax Arguments specifies signed integer data-point representation. specifies positive integer data-point representation. Examples specifies that the binary waveform data are positive integer data-points. returns either as the current waveform data format. WFMPre:BYT_Nr Sets or queries the binary field data width for the first ordered waveform as specified by the DATa:SOUrce command.
Page 309 Command Descriptions Arguments is the number of bytes per point and can be 1 or 2. Examples specifies that there are 2 bytes per waveform data point. WFMPre:BYT_Or Selects which byte of binary waveform data is transmitted first during a waveform data transfer when DATa:WIDth (or WFMPre:BYT_Nr) is set to 2.
Page 310 Command Descriptions WFMPre:ENCdg Sets or queries the type of encoding for waveform data transferred with the CURVe command. Group Waveform Related Commands DATa:ENCdg, WFMPre:BYT_Or, WFMPre:BN_Fmt Syntax Arguments specifies ASCII curve data. specifies binary curve data. Examples specifies that the waveform data is in ASCII format. might return , indicating that the waveform data is in binary format.
Page 311 Command Descriptions Arguments specifies that the waveform is transmitted as maximum and minimum point pairs. Only y values are explicitly transmitted. Absolute coordinates are given XINcr (n PT_Off) YZEro YMUlt (y YOFf) n max n max YZEro YMUlt (y YOFf) n min n min specifies a normal waveform where one ASCII or binary data point is...
Page 312 Command Descriptions WFMPre:XINcr (No Query Form) Specifies the horizontal sampling interval for the reference waveform specified by the DATa:DESTination command. Group Waveform Syntax Arguments is the sampling interval in seconds per point. WFMPre:YMUlt (No Query Form) Specifies the vertical scale factor for the reference waveform specified by the DATa:DESTination command.
Page 313: Table 2-32: Additional Wfmpre Commands
Command Descriptions Arguments is the vertical offset in digitizing levels. WFMPre:YZEro (No Query Form) Specifies the offset voltage for the reference waveform specified by the DATa:DESTination command. Group Waveform Syntax Arguments is of the offset in YUNits (usually volts). Table 2–32 lists additional WFMPre commands that are included for compatibil- ity purposes.
Page 314 Command Descriptions NOTE. When returning WFMPRE:<wfm> information from the oscilloscope, <wfm> specifies the waveform source (CH<x>, MATH<x>, or REF<x>). The source must also be set using the DAta:SOUrce command. When sending WFMPRE:<wfm> information to the scope, the <wfm> specification is ignored and the reference location specified by DATa:DESTination is used instead.
Page 315 Command Descriptions Arguments is the number of data points. If DATa:WIDth is 2 then there are twice as many bytes. = 0 means that the waveform record is of an unspecified length. Examples might return as the number of data points in the waveform record trans- ferred from channel 1.
Page 316 Command Descriptions YZEro YMUlt (y YOFf) n max n max specifies a normal waveform where one ASCII or binary data point is transmitted for each point in the waveform record. Only y values are explicitly transmitted. Absolute coordinates are given by: XINcr (n PT_Off) YZEro...
Page 317 Command Descriptions TDS 4XXA: when the TDS 4XXA is in external clock mode, the time-per-div field will contain “50 clks/div”. Group Waveform Syntax Arguments is the waveform identifier string. WFMPre:<wfm>:XINcr Sets or queries the horizontal sampling interval. On input <wfm> always defaults to the reference location specified by DATa:DESTination regardless of what is sent.
Page 318 Command Descriptions The WFMPre:<wfm>:XUNit command is ignored on input. TDS 4XXA: when the TDS 4XXA is in external clock mode, the time-per-div field will contain “50 clks/div”. Group Waveform Syntax Arguments is “s” for seconds and specifies the units. Examples might return , indicating that the horizontal units for channel 1 are seconds.
Page 319 Command Descriptions WFMPre:<wfm>:YOFf Sets or queries the vertical position of the waveform. On input <wfm> always defaults to the reference location specified by DATa:DESTination regardless of what is sent. Group Waveform Syntax Arguments is the position in digitizing levels. WFMPre:<wfm>:YUNit Returns the vertical (Y-axis) units of the waveform data at the time of creation.
Page 320 Command Descriptions WFMPre:<wfm>:YZEro Sets or queries the vertical (Y-axis) offset voltage. On input <wfm> always defaults to the reference location specified by DATa:DESTination regardless of what is sent. Group Waveform Syntax Arguments is the offset in YUNits (usually volts). ZOOm Resets the zoom transforms to default values for all traces or live traces.
Page 321 Command Descriptions Examples might return ZOOm:DUAl TDS 4XXA & 7XXA Only Turns Dual Zoom mode on and off. Group Zoom Syntax Arguments = 0 turns Dual Zoom mode off. 0 turns Dual Zoom mode on. Examples enables the Dual Zoom feature. returns either or depending on the state of Dual Zoom mode.
Page 322 Command Descriptions Arguments is the offset time in seconds. Examples adjusts the offset time in seconds between the centers of the main and second zoom boxes. ZOOm:GRAticule TDS 4XXA & 7XXA Only Selects between the upper and lower graticule for use by the zoom preview state. If you select the lower graticule, horizontal and vertical knob changes will affect the underlying acquisition system.
Page 323 Command Descriptions ZOOm:HORizontal:LOCk Specifies the waveforms that the horizontal zoom parameters affect. This is equivalent to setting Horizontal Lock in the Zoom side menu. Group Zoom Syntax Arguments specifies that all live (CH<x>) waveforms will be horizontally positioned and scaled together. specifies that only the selected waveform is positioned and scaled using the horizontal zoom parameters.
Page 324 Command Descriptions Syntax Arguments is from 0 to 100, and is the percent of the waveform that is to the left of screen center when the zoom factor is 1x or greater. It is the percent of the graticule to the right of the waveform center when the zoom factor is less than 1.
Page 325 Command Descriptions Examples might return as the horizontal scale factor. ZOOm:STATE Turns Zoom mode on and off. When Zoom mode is on, the horizontal and vertical position and scale commands affect the waveform display, not the acquisition. This is the only way to position and scale math and reference waveforms.
Page 326 Command Descriptions ZOOm:VERTical:POSition Sets or queries the vertical position of waveforms. Group Zoom Syntax Arguments is the vertical position in divisions. Examples might return ZOOm:VERTical:SCAle Sets or queries the vertical expansion and compression factor. Group Zoom Related Commands ACQuire:MODe Syntax Arguments is the amount of vertical expansion or compression.
Page 327: Registers
Status and Events The digitizing oscilloscope provides a status and event reporting system for the GPIB interface. This system informs you of certain significant events that occur within the digitizing oscilloscope. The digitizing oscilloscope status handling system consists of five 8-bit registers and two queues.
Page 328: Figure 3-1: The Standard Event Status Register (Sesr)
Status and Events PON URQ CME EXE DDE QYE RQC OPC Figure 3–1: The Standard Event Status Register (SESR) Table 3–1: SESR Bit Functions Function 7 (MSB) PON (Power On). Shows that the digitizing oscilloscope was powered on. The completion of the diagnostic tests also sets this bit. URQ (User Request).
Page 329: Figure 3-3: The Device Event Status Enable Register (Deser)
Status and Events Table 3–2: SBR Bit Functions Function 7 (MSB) Not used. RQS (Request Service), obtained from a serial poll. Shows that the digitizing oscilloscope requests service from the GPIB controller. MSS (Master Status Summary), obtained from *STB? query. Summarizes the ESB and MAV bits in the SBR.
Page 330: Figure 3-4: The Event Status Enable Register (Eser)
Status and Events PON URQ CME EXE DDE QYE RQC OPC Figure 3–4: The Event Status Enable Register (ESER) The Service Request Enable Register (SRER) — is shown in Figure 3–5. It controls which bits in the SBR generate a Service Request and are summarized by the Master Status Summary (MSS) bit.
Page 331: Queues
Status and Events Queues The digitizing oscilloscope status and event reporting system contains two queues: the Output Queue and the Event Queue. The Output Queue The digitizing oscilloscope stores query responses in the Output Queue. It empties this queue each time it receives a new command or query message after an <EOM>.
Page 332: Figure 3-6: Status And Event Handling Process
Status and Events Event Handling Sequence Figure 3–6, on page 3–6, shows how to use the status and event handling system. In the explanation that follows, numbers in parentheses refer to numbers in Figure 3–6. Device Event Status Enable Register (DESER) PON URQ CME EXE DDE QYE RQC OPC Read using DESE?
Page 333: Synchronization Methods
Status and Events When output is sent to the Output Queue, the MAV bit in the SBR is set to one (5). When a bit in the SBR is set to one and the corresponding bit in the SRER is enabled (6), the MSS bit in the SBR is set to one and a service request is generated (7).
Page 334: Figure 3-7: Command Processing Without Using Synchronization
Status and Events Acquiring Waveform Data Processing Time Figure 3–7: Command Processing Without Using Synchronization To ensure the digitizing oscilloscope completes waveform acquisition before taking the measurement on the acquired data, you can synchronize the program. Figure 3–8 shows the desired processing sequence. Acquiring Waveform Data Processing Time Figure 3–8: Processing Sequence With Synchronization...
Page 335 Status and Events /* Take amplitude measurement on acquired data */ Though *WAI is one of the easiest ways to achieve synchronization, it is also the most costly. The processing time of the digitizing oscilloscope is slowed since it is processing a single command at a time. This time could be spent doing other tasks.
Page 336 Status and Events Serial Poll Method. Enable the OPC bit in the Device Event Status Enable Register (DESER) and the Event Status Enable Register (ESER) using the DESE and *ESE commands. When the operation is complete, the OPC bit in the Standard Event Status Register (SESR) will be enabled and the Event Status Bit (ESB) in the Status Byte Register will be enabled.
Page 337 Status and Events /* Acquire waveform data */ /* Set up the measurement parameters */ /* Wait until the acquisition is complete before taking the measurement */ /* Take amplitude measurement on acquired data */ This technique is more efficient but requires more sophisticated programming. Using the *OPC? Query The *OPC? query places a 1 in the Output Queue once an operation is complete.
Page 338: Messages
Status and Events Messages Tables 3–3 through 3–9 list all the programming interface messages the digitizing oscilloscope generates in response to commands and queries. For most messages, a secondary message from the digitizing oscilloscope gives more detail about the cause of the error or the meaning of the message. This message is part of the message string, and is separated from the main message by a semicolon.
Page 339 Status and Events Table 3–4: Command Error Messages – CME Bit 5 (Cont.) Code Message Header separator error Program mnemonic too long Undefined header Query not allowed Numeric data error Invalid character in number Exponent too large Too many digits Numeric data not allowed Suffix error Invalid suffix...
Page 340: Table 3–5: Execution Error Messages – Exe Bit 4
Status and Events Table 3–5 lists the execution errors that are detected during execution of a command. In these error messages, you should read “macro” as “alias.” Table 3–5: Execution Error Messages – EXE Bit 4 Code Message Execution error Invalid while in local Settings lost due to rtl Trigger error...
Page 341 Status and Events Table 3–5: Execution Error Messages – EXE Bit 4 (Cont.) Code Message 2203 Measurement error, No period, second waveform 2204 Measurement error, Low signal amplitude 2205 Measurement error, Low amplitude, second waveform 2206 Measurement error, Invalid gate 2207 Measurement error, Measurement overflow 2208...
Page 342 Status and Events Table 3–5: Execution Error Messages – EXE Bit 4 (Cont.) Code Message 2242 Data start and stop > record length 2243 Waveform requested is not a data source 2244 Waveform requested is not turned on 2245 Saveref error, Selected channel is turned off 2246 Saveref error, Selected channel data invalid 2247...
Page 343: Table 3–6: Device Error Messages – Dde Bit 3
Status and Events Table 3–6 lists the device errors that can occur during digitizing oscilloscope operation. These errors may indicate that the oscilloscope needs repair. Table 3–6: Device Error Messages – DDE Bit 3 Code Message Device-specific error System error Memory error PUD memory lost Calibration memory lost...
Page 344: Table 3–8: Execution Warning Messages – Exe Bit 4
Status and Events Table 3–7: System Event Messages (Cont.) Code Message Bottom menu button #2 pushed (URQ bit 6 set) Bottom menu button #3 pushed (URQ bit 6 set) Bottom menu button #4 pushed (URQ bit 6 set) Bottom menu button #5 pushed (URQ bit 6 set) Bottom menu button #6 pushed (URQ bit 6 set) Bottom menu button #7 pushed (URQ bit 6 set) Table 3–8 lists warning messages that do not interrupt the flow of command...
Page 345: Table 3–9: Internal Warning Messages
Status and Events Table 3–8: Execution Warning Messages – EXE Bit 4 (Cont.) Code Message InstaVu active – deactivate to see change InstaVu active – deactivate to use math Table 3–9 shows internal errors that indicate an internal fault in the digitizing oscilloscope.
Page 346 Status and Events 3–20 TDS Family Oscilloscope Programmer Manual...
Page 347: Figure 4-1: Equipment Needed To Run The Example Programs
Microsoft QuickBASIC 4.5 and Microsoft QuickC 2.5. The programs run on a PC-compatible system equipped with a Tektronix (National Instruments) GPIB board and associated drivers. For example, the programs will work with a Tektronix S3FG210 (National Instruments GPIB- PCII/IIA) GPIB package (See Figure 4–1).
Page 348: Compiling The Example Programs
NOTE. The programs you compile in the Sources directory work with the Tektronix S3FG210 (National Instruments GPIB-PCII-IIA) GPIB system. It may take extra steps or changes to get them to work with older Tektronix GURU and other GPIB systems. Compiling and Linking...
Page 349 Your Example 1. Install QuickBASIC. QuickBASIC Programs 2. Install the Tektronix S3FG210 (National Instruments GPIB-PCII/IIA) GPIB board and drivers. Remember to reboot your PC to initialize the GPIB drivers. 3. Copy the files from the examples diskette to your hard disk. You might also create a special directory to store them.
Page 350 B, you might type: 4. For this installation, you will also want to copy from your Tektronix S3FG210 (National Instruments GPIB-PCII/IIA) GPIB drivers directory to the directory your example programs are in. For example, if the GPIB drivers are in the...
Page 351 Program Examples is a collection of input/output routines used by the other programs and is included for proper file compilation. 6. Run the program by simply typing the program name. To run , type: To run , type: To run , type: To run , type:...
Page 352 Program Examples 4–6 TDS Family Oscilloscope Programmer Manual...
Page 353: Appendix A: Character Charts
Appendix A: Character Charts The characters in Table A–1 are available for the digitizing oscilloscope. Numbers in the lower left corners are character widths in pixels. Table A–1: The TDS Character Set space ‘ ” Ç & ‘ ’ < —...
Page 354: Table A–2: Ascii & Gpib Code Chart
1 1 1 1 (DEL) ADDRESSED UNIVERSAL LISTEN TALK SECONDARY ADDRESSES COMMANDS COMMANDS ADDRESSES ADDRESSES OR COMMANDS Tektronix octal GPIB code (with ATN asserted) REF: ANSI STD X3.4-1977 ASCII character IEEE STD 488.1-1987 decimal ISO STD 646-2973 A–2 TDS Family Oscilloscope Programmer Manual...
Page 355: Appendix B: Reserved Words
Appendix B: Reserved Words The following is a list of the reserved words of the digitizing oscilloscope. Do not use these words for aliases. Capital letters identify the required minimum spelling. Hint: Use the full spelling for the most robost code as the minimum spelling rules may change over time and from model to model.
Page 356 Appendix B: Reserved Words FILEName INTENSIFied NANd PROCessing FILESystem INTENSITy NDUty PT_Fmt FILTer INTERLAce NEGAtive PT_Off FIRst INTERLeaf NEGSynchwidth PULse FITtoscreen INVert NEWpass PWIdth FLAg NOISErej RATE1 FLEXformat LABel NONe RATE2 FORCe LANdscape RATE3 FORMat LASERJet NORMal RATE4 FORWards LAYout NOVershoot REAdy FPAnel...
Page 357 Appendix B: Reserved Words SECAm STANdard TRIGger WFId SECdiv STARt TRIGT WFMPre SECOnds STATE TRUe WHEn SELect STOP WIDth SEQuence STOPAfter TWEnty WIThin STOPBits TWOfifty SETHold STORe TYPe XINcr SETLevel STYle UNITS XMUlt SETTime SYNc UNITSTring XOFf SETUp SYStem UNLock XUNit SHORt TARget...
Page 358 Appendix B: Reserved Words B–4 TDS Family Oscilloscope Programmer Manual...
Page 359: Appendix C: Interface Specifications
Appendix C: Interface Specifications This appendix describes details of the GPIB remote interface of the digitizing oscilloscope. Normally, you will not need this information to use the digitizing oscilloscope, but the information is useful when connecting to controllers of unusual configuration. GPIB Function Subsets The digitizing oscilloscope supports many GPIB function subsets, as listed below.
Page 360: Interface Messages
Appendix C: Interface Specifications DT1 (Device Trigger). When acting as a listener, the digitizing oscilloscope responds to the GET (Group Execute Trigger) interface message. C0 (Controller). The digitizing oscilloscope cannot control other devices. E2 (Electrical). The digitizing oscilloscope uses tristate buffers to provide optimal high-speed data transfer.
Page 361: Table D–1: Factory Initialization Settings
Appendix D: Factory Initialization Settings The factory initialization settings provide you a known state for the digitizing oscilloscope. Factory initialization sets values as shown in Table D–1. Table D–1: Factory Initialization Settings Control Changed by Factory Init to Acquire mode Sample Acquire repetitive signal ON (Enable ET)
Page 362 Appendix D: Factory Initialization Settings Table D–1: Factory Initialization Settings (Cont.) Control Changed by Factory Init to Delayed edge trigger coupling All except TDS 684A & 7XXA Main Trigger Delayed edge trigger level Delayed edge trigger slope Rising Delayed edge trigger source Channel 1 Delayed, time base mode Delayed Runs After Main...
Page 363 Appendix D: Factory Initialization Settings Table D–1: Factory Initialization Settings (Cont.) Control Changed by Factory Init to Display trigger “T” Display variable persistence 500 ms Edge trigger coupling Edge trigger level 0.0 V Edge trigger slope Rising Edge trigger source Channel 1 GPIB parameters No change...
Page 364 Appendix D: Factory Initialization Settings Table D–1: Factory Initialization Settings (Cont.) Control Changed by Factory Init to Logic state trigger Ch4 (Ax2) input Rising edge (TDS 5XXA, 6XXA, & 7XXA) Logic trigger input Channel 1 = H (high), (pattern and state) Channels 2 &...
Page 365 Appendix D: Factory Initialization Settings Table D–1: Factory Initialization Settings (Cont.) Control Changed by Factory Init to Measure Delay edges Both rising and forward searching Measure Delay to Channel 1 (Ch1) Measure Gating Measure High Ref 90% and 0 V (units) Measure High-Low Setup Histogram Measure Low Ref...
Page 366 Appendix D: Factory Initialization Settings Table D–1: Factory Initialization Settings (Cont.) Control Changed by Factory Init to Pulse width trigger polarity Positive (TDS 5XXA, 6XXA, & 7XXA) Pulse width trigger when ... Within limits (TDS 5XXA, 6XXA, & 7XXA) Pulse width upper limit 2.0 ns (TDS 5XXA, 6XXA, &...
Page 367 Glossary ASCII Acronym for the American Standard Code for Information Interchange. Controllers transmit commands to the digitizing oscilloscope using ASCII character encoding. Address A 7-bit code that identifies an instrument on the communication bus. The digitizing oscilloscope must have a unique address for the controller to recognize and transmit commands to it.
Page 368 Beginner’s All-Purpose Symbolic Instruction Code. QuickC A computer language (distributed by Microsoft) that is based on C. TEKSecure A Tektronix custom command that initializes both waveform and setup memories. This overwrites any previously stored data. Glossary–2 TDS Family Oscilloscope Programmer Manual...
Page 369 Index APPMENU:LABEL:TITLE, 2–58 APPMENU, 2–55 Abbreviating, command, 2–4 APPMENU:LABEL, 2–56 ACQUIRE?, 2–39 APPMENU:LABEL:BOTTOM, 2–56 ACQUIRE:AUTOSAVE, 2–39 APPMENU:LABEL:RIGHT, 2–57 ACQUIRE:MODE, 2–40 APPMENU:LABEL:TITLE, 2–58 ACQUIRE:NUMACQ?, 2–42 Argument, command, 2–2 ACQUIRE:NUMAVG, 2–43 ASCII, 2–1, Glossary–1 ACQUIRE:NUMENV, 2–43 Audio indicator, 2–59 ACQUIRE:REPET, 2–44 AUTOSET, 2–59 ACQUIRE:STATE, 2–45 ACQUIRE:STOPAFTER, 2–46 Acquisition command group, 2–11, 2–12...
Page 370 Index *CLS, 2–68 Command syntax, 2–1 Command BNF (Backus-Naur form), 2–1 Abbreviating, 2–4 Commands, 1–1 Argument, 2–2 Parts of, 1–1 Block argument, 2–9 Syntax diagrams, 1–1 Common, 2–21, 2–23 Common command, 2–21, 2–23 Concatenating, 2–4 Common GPIB commands Header, 2–2 *CAL?, 2–60 Message, 2–2 *CLS, 2–68...
Page 371 Index CURSOR:PAIRED:POSITION<x>, 2–76 DISPLAY:COLOR:MAP:item:BYCONTENTS, CURSOR:PAIRED:POSITION<x>PCNT, 2–77 2–104 CURSOR:PAIRED:SELECT, 2–77 DISPLAY:COLOR:PALETTE:palette name:item CURSOR:PAIRED:UNITS, 2–78 name, 2–108 CURSOR:PAIRED:VDELTA, 2–79 DISPLAY:COLOR:PALETTE:palette name:RESET, CURSOR:VBARS, 2–79 2–107 CURSOR:VBARS:DELTA?, 2–80 DISPLAY:COLOR:PALETTE:PERSISTENCE, CURSOR:VBARS:POSITION<x>, 2–81 2–106 CURSOR:VBARS:POSITION<x>PCNT, 2–81 DISPLAY:COLOR:PALETTE:REGULAR, 2–106 CURSOR:VBARS:SELECT, 2–82 DISPLAY:COLOR:PALETTE:RESETALL, 2–107 CURSOR:VBARS:UNITS, 2–83 DISPLAY:DATE/TIME. See DISPLAY:CLOCK CURSOR:VBARS:UNITSTring, 2–85 DISPLAY:FILTER, 2–110 CURVE, 2–85...
Page 372 Index DISPLAY:INTENSITY:CONTRAST, 2–115 FILESYSTEM:COPY, 2–126 DISPLAY:INTENSITY:OVERALL, 2–116 FILESYSTEM:CWD, 2–127 DISPLAY:INTENSITY:TEXT, 2–117 FILESYSTEM:DELETE, 2–127 DISPLAY:INTENSITY:WAVEFORM, 2–117 FILESYSTEM:DELWARN, 2–128 DISPLAY:MODE, 2–118 FILESYSTEM:DIR, 2–129 DISPLAY:PERSISTENCE, 2–118 FILESYSTEM:FORMAT, 2–129 DISPLAY:STYLE, 2–119 FILESYSTEM:FREESPACE, 2–129 DISPLAY:TRIGBAR, 2–120 FILESYSTEM:MKDIR, 2–130 DISPLAY:TRIGT, 2–121 FILESYSTEM:OVERWRITE, 2–130 FILESYSTEM:PRINT, 2–131 FILESYSTEM:RENAME, 2–132 FILESYSTEM:RMDIR, 2–132 FITTOSCREEN, 2–149 Edge trigger, 2–228, 2–229, 2–230, 2–265...
Page 373 Index HORIZONTAL:CLOCK:MAXRATE, 2–141 HORIZONTAL:DELAY?, 2–142 HORIZONTAL:DELAY:MODE, 2–142 ID?, 2–156 HORIZONTAL:DELAY:SCALE, 2–143 *IDN?, 2–156 HORIZONTAL:DELAY:SECDIV, 2–144 IEEE, Glossary–2 HORIZONTAL:DELAY:TIME, 2–144 IEEE Std 488.2-1987, 1–3, 2–1, 2–21, 2–23 HORIZONTAL:DELAY:TIME?, 2–145 Instrument setup, 1–3 HORIZONTAL:DELAY:TIME:RUNSAFTER, Interface message, C–2 2–145 HORIZONTAL:DELAY:TIME:TRIGAFTER, 2–146 HORIZONTAL:FASTFRAME:COUNT, 2–147 HORIZONTAL:FASTFRAME:LENGTH, 2–147 Limit test command group, 2–19 HORIZONTAL:FASTFRAME:POSITION, 2–148...
Page 374 Index MATH<x>:DEFINE, 2–166 MEASUREMENT:REFLEVEL: PERCENT:MID2, MATH<x>:NUMAVg, 2–168 2–195 MATH<x>:PROCessing, 2–169 MEASUREMENT:REFLEVEL:ABSOLUTE:LOW, MATH<x>, command mnemonic, 2–7 2–190 Measurement command group, 2–19 MEASUREMENT:SNAPSHOT, 2–196 Measurement commands Measurement specifier, command mnemonic, 2–6 MEASUREMENT?, 2–170 MEASUREMENT?, 2–170 MEASUREMENT:CLEARSNAPSHOT, 2–170 MEASUREMENT:CLEARSNAPSHOT, 2–170 MEASUREMENT:GATING, 2–171 MEASUREMENT:GATING, 2–171 MEASUREMENT:IMMED?, 2–171 MEASUREMENT:IMMED?, 2–171 MEASUREMENT:IMMED:DELAY?, 2–172...
Page 375 Index MEASUREMENT:REFLEVEL:PERCENT:MID2, 2–195 Parallel poll, C–2 MEASUREMENT:SNAPSHOT, 2–196 Parts of commands, 1–1 MEAS<x>, command mnemonic, 2–6 PASSWORD, 2–201 MESSAGE, 2–196 Pattern trigger, 2–237, 2–238, 2–239, 2–240 Message POSITION<x>, command mnemonic, 2–6 Command, 2–2 Power-on status clear command, 2–202 Command terminator, 2–5 Handling, 3–1 PPC, C–2 PPD, C–2...
Page 376 Index RS-232 commands Service request enable command, 2–217 RS232?, 2–210 Service request enable register, 2–217 RS232:BAUD, 2–207 Service Requests, 1–2 RS232:HARDFLAGGING, 2–208 SESR register, 2–68, 2–122, 2–200, 3–1 RS232:PARITY, 2–208 Set command, 2–1 RS232:SOFTFLAGGING, 2–209 SET?, 2–216 RS232:STOPBITS, 2–210 Sethold trigger, 2–240, 2–241, 2–242, 2–243, 2–244 RS232?, 2–210 Setting RS232: BAUD, 2–207...
Page 377 Index TRIGGER:MAIN:LOGIC: SETHOLD:CLOCK:EDGE, 2–240 Table, programming message, 3–12 TRIGGER:MAIN:LOGIC: TCT, C–2 SETHOLD:CLOCK:SOURCE, 2–242 Tek Standard Codes and Formats 1989, 2–23 TRIGGER:MAIN:LOGIC: TEKSECURE, 2–218 SETHOLD:DATA:SOURCE, 2–243 TEKSecure, Glossary–2 TRIGGER:MAIN:LOGIC:SETHOLD:HOLDTIME, Terminator, command message, 2–5 2–244 TIME, 2–218 TRIGGER:MAIN:LOGIC:SETHOLD:SETTIME, Time base, Manual trigger simulation, 2–285 2–244 *TRG, 2–285 TRIGGER:MAIN:LOGIC:STATE: INPUT:CH4?,...
Page 378 Index TRIGGER:MAIN:PULSE:SLEWRATE:WHEN, TRIGGER:DELAY:EDGE:COUPLING, 2–222 2–261 TRIGGER:DELAY:EDGE:SLOPE, 2–223 TRIGGER:DELAY:EDGE:SOURCE, 2–224 TRIGGER:MAIN:PULSE:SOURCE, 2–261 TRIGGER:DELAY:EVENTS?, 2–224 TRIGGER:MAIN:PULSE:WIDTH?, 2–262 TRIGGER:DELAY:EVENTS:COUNT, 2–225 TRIGGER:MAIN:PULSE:WIDTH:HIGHLIMIT, TRIGGER:DELAY:LEVEL, 2–225 2–262 TRIGGER:DELAY:TIME, 2–226 TRIGGER:MAIN:PULSE:WIDTH:LOWLIMIT, TRIGGER:DELAY:TYPE, 2–227 2–263 TRIGGER:MAIN, 2–227 TRIGGER:MAIN:PULSE:WIDTH:POLARITY, TRIGGER:MAIN:EDGE?, 2–228 2–263 TRIGGER:MAIN:EDGE:COUPLING, 2–228 TRIGGER:MAIN:PULSE:WIDTH:WHEN, 2–264 TRIGGER:MAIN:EDGE:SLOPE, 2–229 TRIGGER:MAIN:TYPE, 2–265 TRIGGER:MAIN:EDGE:SOURCE, 2–230 TRIGGER:MAIN:VIDEO?, 2–266 TRIGGER:MAIN:HOLDOFF?, 2–230...
Page 379 Index TRIGGER:MAIN:PULSE?, 2–248 TRIGGER:MAIN:VIDEO:FLEXFORMAT: TRIGGER:MAIN:PULSE:CLASS, 2–249 NEGSYNCWIDTH, 2–272 TRIGGER:MAIN:PULSE:GLITCH?, 2–250 TRIGGER:MAIN:VIDEO:FLEXFORMAT: TRIGGER:MAIN:PULSE:GLITCH:FILTER, 2–250 V1STARTTIME, 2–272 TRIGGER:MAIN:PULSE:GLITCH:POLARITY, TRIGGER:MAIN:VIDEO:FLEXFORMAT: 2–251 V1STOPTIME, 2–273 TRIGGER:MAIN:PULSE:GLITCH:WIDTH, 2–252 TRIGGER:MAIN:VIDEO:FLEXFORMAT: TRIGGER:MAIN:PULSE:RUNT?, 2–252 V2STARTTIME, 2–274 TRIGGER:MAIN:PULSE:RUNT:POLARITY, 2–253 TRIGGER:MAIN:VIDEO:FLEXFORMAT: TRIGGER:MAIN:PULSE:RUNT:THRESHOLD?, V2STOPTIME, 2–274 2–253 TRIGGER:MAIN:VIDEO:HDTV, 2–275 TRIGGER:MAIN:PULSE:RUNT: TRIGGER:MAIN:VIDEO:HOLDOFF?, 2–276 THRESHOLD:BOTH, 2–254 TRIGGER:MAIN:VIDEO:HOLDOFF:VALUE, 2–276, TRIGGER:MAIN:PULSE:RUNT: 2–277...
Page 380 Index CH<x>:IMPEDANCE, 2–63 WFMPRE:WFID, 2–295 CH<x>:OFFSET, 2–64 WFMPRE:XINCR, 2–294 CH<x>:POSITION, 2–65 WFMPRE:XMULT, 2–295 CH<x>:PROBE?, 2–66 WFMPRE:XOFF, 2–295 CH<x>:SCALE, 2–66 WFMPRE:XUNIT, 2–295 CH<x>:VOLTS, 2–67 WFMPRE:XZERO, 2–295 SELECT?, 2–214 WFMPRE:YMULT, 2–294 SELECT:<wfm>, 2–215 WFMPRE:YOFF, 2–294 SELECT:CONTROL?, 2–215 WFMPRE:YUNIT, 2–295 Video trigger, 2–265, 2–266, 2–267, 2–268, 2–269, WFMPRE:YZERO, 2–295 2–270, 2–271, 2–272, 2–273, 2–274, 2–275, WFMPRE:ZMULT, 2–295...
Page 381 Index ZOOM:STATE, 2–307 ZOOM:VERTICAL:POSITION, 2–308 ZOOM, 2–302 ZOOM:VERTICAL:SCALE, 2–308 Zoom command group, 2–37 ZOOM GRATICULE, 2–304 Zoom commands ZOOM:DUAL, 2–303 ZOOM, 2–302 ZOOM:DUAL:OFFSET, 2–303 ZOOM:DUAL, 2–303 ZOOM:HORIZONTAL:LOCK, 2–305 ZOOM:DUAL:OFFSET, 2–303 ZOOM:HORIZONTAL:POSITION, 2–305 ZOOM:GRATICULE, 2–304 ZOOM:HORIZONTAL:SCALE, 2–306 ZOOM:HORIZONTAL:LOCK, 2–305 ZOOM:STATE, 2–307 ZOOM:HORIZONTAL:POSITION, 2–305 ZOOM:VERTICAL:POSITION, 2–308 ZOOM:HORIZONTAL:SCALE, 2–306...
Page 382 Index Index–14 TDS Family Oscilloscope Programmer Manual...

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Tektronix TDS 410A Programming Manual

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