Agilent Technologies Sprinkler 54753a User's Manual
Contents
1. Command CHANnel lt number gt RANGe lt range_value gt For TDR and TDT applications you may change the range to magnify range in some circumstances This command is used to set the magnify range as well as the range lt number gt An integer 1 4 indicating the slot in which the channel resides lt range_value gt Full scale voltage of the specified channel number Command CHANnel lt number gt SCALe lt scale_value gt For TDR and TDT applications you may change the scale to magnify scale in some circumstances This command is used to set the magnify scale as well as the scale lt number gt An integer 1 4 indicating the slot in which the channel resides lt scale value gt Vertical scale of the channel in units per division Command lt number gt lt percent gt Command lt number gt Channel Commands CHANnel lt number gt TDRSkew lt percent gt This command sets the TDR skew for the given channel The TDR skew control moves the TDR step relative to the trigger position The control may be set from 100 to 100 percent of the allowable range This command is only applicable to TDR channels An integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced A number between 100 and 100 used to set the step position CHANnel lt number gt UNITs VOLT AMPere WA2. WMEMory lt number gt lt float_value gt Defines a function that computes the integral of the defined operand s waveform For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 A real number FUNCtion 1 2 INVert CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt lt float_value gt Defines a function that inverts the defined operand s waveform by multiplying by 1 For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 A real number FUNCtion 1 2 MAGNify CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt lt float_value gt Defines a function that is a copy of the operand The magnify function is a software magnify No hardware settings are altered as a result of using this function It is useful for scaling channels another function TDR TDT responses and memories with the RANGE and OFFSET commands in this subsystem Magnify performs the sa
3. CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 26 Command lt source gt lt number gt Command lt source gt lt number gt Command lt source gt Measure Commands MEASure NWIDTh lt source gt Measures the width of the first negative pulse on the screen using the mid threshold levels of the waveform 50 levels with standard measurements selected CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure OVERShoot lt sources Measures the width of the overshoot of the first edge on the screen CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A
4. ON2 ON1AND2 DIFFerential COMMonmode EXTernal ON3 ON4 ON3AND4 Turns the TDR TDT stimulus on or off 40 Waveform Commands Command WAVeform SOURce CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt DATabase HISTogram FFT Selects a channel function TDR response waveform memory database histogram or FFT as the waveform source lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 41 Waveform Memory Commands Command WMEMory lt number gt SAVE CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt HISTogram FFT Stores the specific channel waveform memory function histogram or FFT to the waveform memory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 Storing a waveform memory to itself does not change the memory For TDR responses 1 2 3 or 4 42
5. memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 33 Command lt source gt lt number gt Command lt source gt lt number gt Measure Commands MEASure VMIN lt source gt Measures the absolute minimum voltage present on the selected source waveform When FFT is the specified source the minimum value in the spectrum is measured CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt FFT For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure VPP lt sources gt Measures the absolute maximum and minimum voltages on the selected source then calculates the peak to peak voltage as the difference between the two voltages When FFT is the specified source the range of values in the spectrum is measured CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt FFT For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2
6. or 4 lt float_value gt Areal number Command FUNCtion 1 2 BWLimit CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt lt bandwidth gt Provides a bandwidth limit filter function You can use this function on waveforms to limit the bandwidth of the signal In TDR or TDT applications where the accuracy of normalization is not required you can use this to simulate a bandlimited signal through a device under test lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 lt bandwidths Real number indicating frequency limit for the specified function 13 Command lt number gt lt float_value gt Command lt source gt lt number gt lt float_value gt Command lt number gt lt float_value gt Function Commands FUNCtion 1 2 DIFFerentiate CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt lt float_value gt Computes the discrete derivative of the defined operand s waveform For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the
7. 3 or 4 35 Command lt source gt lt number gt Command lt source gt lt number gt Measure Commands MEASure VTOP lt source gt Measures the statistical top of the selected source waveform CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure VUPper lt source gt Measures the voltage value at the upper threshold of the waveform CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 36 Command Command Command Command TDR Commands TDR 2 4 RESPonse 1 2 3 4 CALibrate Begins a TDR or TDT normalization and reference plane calibration Which calibration is done TDR or TDT depends on the setting of the TDRTDT control TDR 2 4 RESPonse 1 2 3 4 CALibrate CANCel Activ
8. could result in injury or loss of life Do not proceed beyond a warning sign until the indicated conditions are fully understood and met il 54750A 83480A Mainframes 86100 Series Mainframes Notational Conventions Introduction Introduction For controlling 54753A and 54754A TDR plug in modules that are installed in a 54750A or 83480A mainframes refer to the following books This manual the 54753A and 54754A TDR Plug in Modules Programmer s Quick Reference 54753A and 54754A Programmer s Guide for detailed information 54750A Oscilloscope and 83480A Analyzer Programmer s Guide for infor mation about programming the oscilloscope 54753A and 54754A User s Guide for general information about the opera tion of the TDR plug in module For controlling 54753A and 54754A TDR plug in modules that are installed in an 86100 series mainframe refer to the following books 86100 series programmer s guide 86100 series online help computer type All characters appearing in computer type are key words and must be entered exactly as shown CAPITAL LETTERS Capital letters indicate the short form of a command The actual command is not case sensitive and can be entered in upper or lower case lt gt Angular brackets enclose words or characters that symbolize a program code parameter or an GPIB command is defined as For example lt A gt lt B gt indicates that lt A gt can be replaced by
9. lt B gt in any statement containing lt A gt or Indicates a choice of one element from a list For example lt A gt lt B gt indicates lt A gt or lt B gt but not both An ellipsis trailing dots indicate that the preceding element may be repeated one or more times ill Definitions Introduction Square brackets indicate that the enclosed items are optional When several items are enclosed by braces one and only one of these elements may be selected d A single ASCII numeric character 0 9 n A single ASCII non zero numeric character 1 9 lt NL gt Newline or Linefeed ASCII decimal 10 lt sp gt space character lt white_space gt space s and tabs iv Contents Root Level Commands 4 Acquire Commands 7 Calibrate Commands 8 Channel Commands 9 Disk Commands 11 Display Commands 12 Function Commands 13 Histogram Commands 19 Limit Test Commands 20 Marker Commands 21 Mask Test Commands 23 Measure Commands 25 TDR Commands 37 Waveform Commands 41 Waveform Memory Commands 42 Root Level Commands Command BLANk CHANnel lt number gt WMEMory lt number gt FUNCtion lt number gt FFT RESPonse lt number gt HISTogram PMEMory1 Turns off an active channel function waveform memory pixel memory FFT histogram or TDR response The VIEW command turns them on lt number gt For channels an integer 1 through 4 indicating the slot in which the ch
10. of the TDR TDT response when horizontal tracking is set to manual The position is always referenced to center screen Offset from the center of the screen in seconds TDR 2 4 RESPonse 1 2 3 4 HORizontal RANGe lt range gt Specifies the range of the TDR TDT response when the horizontal tracking is set to manual Horizontal range in seconds 38 Command lt risetime gt Command lt number gt Command Command lt number gt TDR Commands TDR 2 4 RESPonse 1 2 3 4 RISetime lt risetime gt Sets the risetime for the normalized response The risetime setting is limited by the timebase settings and the record length Risetime setting in seconds TDR 2 4 RESPonse 1 2 3 4 TDRDest CHANnel lt number gt Selects a TDR destination channel for an external stimulus When you use an external stimulus you must use this command to specify where the TDR channel is coming into the instrument An integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced TDR 2 4 RESPonse 1 2 3 4 TDRTDT TDR TDT Sets the instrument to make either TDR or TDT measurements When the setting is TDT both TDR and TDT measurements can be made simultaneously You must select a TDT destination channel before selecting TDT TDR 2 4 RESPonse 1 2 3 4 TDTD
11. terms in the separate agreement shall control Technology Licenses MS DOS is a U S registered trademark of Microsoft Corporation Restricted Rights Legend If software is for use in the performance of a U S Government prime contract or subcontract Software is delivered and licensed as Commercial computer soft ware as defined in DFAR 252 227 7014 June 1995 or as a commercial item as defined in FAR 2 101 a or as Restricted computer software as defined in FAR 52 227 19 June 1987 or any equivalent agency regulation or contract clause Use duplication or disclosure of Software is subject to Agilent Technologies standard commercial license terms and non DOD Departments and Agencies of the U S Government will receive no greater than Restricted Rights as defined in FAR 52 227 19 c 1 2 June 1987 U S Gov ernment users will receive no greater than Limited Rights as defined in FAR 52 227 14 June 1987 or DFAR 252 227 7015 b 2 November 1995 as appli cable in any technical data Safety Notices CAUTION Caution denotes a hazard It calls attention to a procedure which if not correctly per formed or adhered to could result in damage to or destruction of the product Do not proceed beyond a caution sign until the indicated conditions are fully understood and met WARNING Warning denotes a hazard It calls attention to a procedure which if not correctly per formed or adhered to
12. the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR response 1 2 3 or 4 Command MTESt SWAVeform lt source gt lt destination gt lt filename gt lt formats Saves waveforms from a channel function TDR response histogram or waveform memory in the event of a failure detected by the Mask Test Each waveform source can be individually specified allowing multiple channels or functions to be saved to disk or waveform memories Setting a particular source to OFF removes any waveform save action from that source lt source gt CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt HISTogram FFT 23 lt number gt lt destination gt lt filename gt lt format gt Command lt number gt Mask Test Commands For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 OFF WMEMory lt number gt DISK A descriptive file prefix consisting of up to four characters If no filename is specified the prefix defaults to CH1A CH4B FN1 FN2 FFT HIST MEM1 MEM4 RSP1 RSP4 TEXT YVALues VERBose INTernal MTESt SCALe SOURce CHANnel lt number gt FUNCt
13. 3 or 4 34 Command lt source gt lt number gt Command lt time gt lt source gt lt number gt Measure Commands MEASure VRMS CyCLe DISPlay AC Dc lt source gt Measures the RMS voltage of the selected waveform by subtracting the average value of the waveform from each data point on the display CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure VTIMe lt time gt lt source gt Measures the voltage at the specified time The time is referenced to the trigger event and must be on the screen When FFT is the specified source the value at the specified frequency is measured Displayed time from the trigger in seconds or frequency in Hertz for FFT CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt FFT For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2
14. Agilent 54753A and 54754A TDR Plug in Modules Programmer s Quick Reference Ee Agilent Technologies Notices Agilent Technologies Inc 2000 2004 No part of this manual may be repro duced in any form or by any means including electronic storage and retrieval or translation into a foreign lan guage without prior agreement and writ ten consent from Agilent Technologies Inc as governed by United States and international copyright lays Manual Part Number 54754 90013 Edition July 2004 Printed in Malaysia Agilent Technologies Inc Digital Signal Analysis Division 1400 Fountaingrove Parkway Santa Rosa CA 95403 USA Warranty The material contained in this document is provided as is and is subject to being changed without notice in future edi tions Further to the maximum extent permitted by applicable law Agilent dis claims all warranties either express or implied with regard to this manual and any information contained herein includ ing but not limited to the implied warran ies of merchantability and fitness for a particular purpose Agilent shall not be liable for errors or for incidental or conse quential damages in connection with the urnishing use or performance of this document or of any information con ained herein Should Agilent and the user have a separate written agreement with warranty terms covering the mate rial in this document that conflict with hese terms the warranty
15. MEMory1 Turns on a channel function pixel memory waveform memory TDR response histogram or FFT Use the BLANk command to turn these off For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 For pixel memories PMEMory 1 Acquire Commands Command ACQuire BEST THRuput FLATness When averaging is enabled with ACQuire AVERage the FLATness option improves the step flatness by using a signal processing algorithm within the instrument You should use this option when performing TDR measurements or when step flatness is important The THRuput option improves the instrument s throughput and should be used whenever best flatness is not required Calibrate Commands Command CALibrate SAMPlers DISable ENABle Enables or disables the samplers in the plug in Channel Commands Command CHANnel lt number gt OFFSet lt offset_value gt For TDR and TDT applications you may change the offset to magnify offset in some circumstances This command is used to set the magnify offset as well as the offset lt number gt An integer 1 4 indicating the slot in which the channel resides lt offset_value gt Offset value at center screen can be volts amperes or other units
16. SETup WMEMory lt number gt TDRTDT Is an MS DOS compatible file name up to 8 characters long Represents waveforms 1 2 3 or 4 TEXT YVALues VERBose INTernal 11 Display Commands Command DISPlay ASSign CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt FFT UPPer LOWer Assigns the specified channel waveform function TDR response or FFT to a particular portion of the waveform area on the screen This command has no effect when the graticule format is single lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 12 Function Commands Command FUNCtion 1 2 ADD lt source gt lt source gt Defines a function that takes the algebraic sum of two defined operands lt source gt CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt lt float_value gt lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3
17. TRIGger DISK DISPlay MARker MEASure MATH WAVeform SETup PRINt HELP UTILity FFT LTESt HISTogram MTESt MEYE TDR lt number gt MTDR lt number gt For channels indicates the slot 1 through 4 in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For TDR controls the TDR TDT menus for channels 2 and 4 For MTDR controls the TDR TDT menus for channels 2 and 4 Command lt number gt Command lt number gt Root Level Commands STORe WAVEform CHANnel lt number gt FUNCtion lt number gt WMEMory lt number gt HISTogram FFT RESPonse lt number gt WMEMory lt number gt Copies a channel function stored waveform histogram TDR response or FFT to a waveform memory The first parameters specifies the source of the copy and can be any channel function waveform memory histogram TDR response or the FFT The second parameter is the destination of the copy and can be any waveform memory For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For responses 1 2 3 or 4 VIEW CHANnel lt number gt WMEMory lt number gt FUNCtion lt number gt FFT RESPonse lt number gt HISTogram P
18. TT UNKNown OHM REFLect GAIN For TDR and TDT applications you can select the units OHM REFLect and GAIN OHM and REFLect may be selected for TDR channels while GAIN may be selected for TDT channels You must perform a normalization and a reference plane calibration to select these units An integer 1 4 indicating the slot in which the channel resides 10 Command lt source gt lt filename gt lt number gt Command lt source gt lt filename gt lt number gt lt format gt Disk Commands DISK LOAD lt filename gt lt source gt Loads a setup waveform database mask TDR TDT calibration or pixel memory from the disk The filename does not include a suffix The suffix supplied by the instrument depends on the source and file format specified The TDRTDT option is a file type choice used to load TDR TDT calibration values into the instrument DATabase MASK PMEMory 1 SETup WMEMory lt number gt TDRTDT Is an MS DOS compatible file name up to 8 characters long Represents waveforms 1 2 3 or 4 DISK STORe lt source gt lt filename gt lt format gt Stores a setup waveform database mask TDR response TDR TDT calibration or pixel memory to the disk The filename does not include a suffix The suffix is supplied by the instrument depending on the source and file format specified The database may only be saved in internal format DATabase MASK PMEMory 1
19. an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 A real number 16 Command lt source gt lt number gt lt float_value gt Command lt source gt lt number gt lt float_value gt Function Commands FUNCtion 1 2 MULTiply lt source gt lt source gt Defines a function that algebraically multiplies the first operand by the second operand CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt lt float_value gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 A real number FUNCtion 1 2 SUBTract lt source gt lt source gt Defines a function that algebraically subtracts the second operand from the first operand CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt lt float_value gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of tw
20. annel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For pixel memories PMEMory 1 For TDR response 1 2 3 or 4 Command COMMents PLUGin lt number gt lt comments gt Sets the comments field for the plugin This field is used to describe options included in the plugin or for user commands about the plugin lt number gt Represents the plugin slot numbered 1 through 4 lt comments gt Represents the unquoted string Command lt waveform_name gt lt number gt Command lt number gt Root Level Commands DIGitize lt waveform_name gt lt waveform_name gt Invokes a special mode of data acquisition that is more efficient than using the RUN command This command initializes the selected channels functions responses or FFT to unacquired then acquires them according to the current instrument settings When all signals are completely acquired the instrument is stopped CHANnel lt number gt FUNCtion lt number gt FFT RESPonse lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For responses 1 2 3 or 4 MENU APPLication CHANnel lt number gt ACQuire TIMebase
21. ates the cancel softkey during a TDR or TDT normalization and reference plane calibration TDR 2 4 RESPonse 1 2 3 4 CALibrate CONTinue Activates the continue softkey during a TDR or TDT normalization and reference plane calibration TDR 2 4 PRESet Sets up the instrument for TDR or TDT measurements based on the stimulus 37 Command lt rate gt Command Command Command lt position gt Command lt range gt TDR Commands TDR 2 4 RATE AUTO lt rate gt Sets the period of the TDR pulse generator You should usually leave this set to AUTO unless you need to define a specific rate In AUTO the instrument will attempt to keep subsequent periods off screen when the timebase is changed Period to which you want to set the generator in Hertz You can add a suffix to indicate that the rate is in Hertz HZ KHZ MHZ and so on TDR 2 4 RESPonse 1 2 3 4 OFF DIFFerential COMMonmode NORMalize Turns on or off the response of a TDR or TDT stimulus TDR 2 4 RESPonse 1 2 3 4 HORizontal TSOurce MANual Specifies whether the TDR TDT response should track the source channel s horizontal scale TSOurce or use a user defined scale specified with the HORizontal POSItion and HORizontal RANGe commands MANual TSOurce is the usual setting TDR 2 4 RESPonse 1 2 3 4 HORizontal POSition lt position gt Specifies the horizontal position
22. ble channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR response 1 2 3 or 4 19 Limit Test Commands Command LTESt SWAVeform lt source gt lt destination gt lt filename gt s lt formats Saves waveforms from a channel function histogram TDR response or waveform memory in the event of a failure detected by the limit test Each waveform source can be individually specified allowing multiple channels or functions to be saved to disk or waveform memories Setting a particular source to OFF removes any waveform save action from that source lt source gt CHANnel lt number gt FUNCtion lt number gt HISTogram RESPonse lt number gt WMEMory lt number gt lt destination gt OFF WMEMory lt number gt DISK When DISK is selected a file name is required lt filename gt A descriptive file prefix consisting of up to four characters If no filename is specified the prefix defaults to CH1A CH4B FN1 FN2 FFT HIST MEM1 MEM4 RSP1 RSP4 lt format gt TEXT YVALues VERBose INTernal 20 Marker Commands Command MARKer MODE OFF MANual WAVeform MEASurement HISTogram TDRTDT Sets the marker mode Command MARKer PROPagation DIELectric METer FEET lt propagation gt Sets the propagation velocity for TDR and TDT measurements The propagation may be specified as a dielectric constant or in meter
23. e channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure TMAX lt source gt Measures the first time at which the maximum voltage of the source waveform occurred When FFT is the specified source the frequency at which the first maximum value occurred is measured CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt FFT For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 30 Command lt source gt lt number gt Command lt voltage gt lt slope gt lt occurrence gt lt source gt lt number gt Measure Commands MEASure TMIN lt source gt Measures the time at which the first minimum voltage of the source waveform occurred When FFT is the specified source the frequency at which the first minimum value occurred is measured CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt FFT For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is be
24. esides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure VAVerage CYCLe DISPlay lt source gt Calculates the average voltage over the displayed waveform CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure VBASe lt source gt Measures the statistical base of the waveform CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 32 Command lt source gt lt number gt Command lt source gt lt number gt Command lt source gt lt number gt Measure Commands MEASure VLOWer lt source gt Measures the voltage value at the lower
25. est NONE CHANnel lt number gt Selects a destination channel for a normalization measurement An integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced 39 Command Command lt offset_value gt Command lt range_value gt Command TDR Commands TDR 2 4 RESPonse 1 2 3 4 VERTical TSOurce MANual Specifies whether the TDR TDT response should track the source channel s vertical scale TSOurce or use a user defined scale specified with the VERTical OFFSet and VERTical RANGe commands MANual TSOurce is the usual setting TDR 2 4 RESPonse 1 2 3 4 VERTical OFFSet lt offset_value gt Sets the vertical position of the specified response when vertical tracking is set to MANual The position is always referenced to center screen Offset value in volts watts or decibels depending on the current channel UNITs Suffix UNITs are ignored only the scalar part is used m in mw TDR 2 4 RESPonse 1 2 3 4 VERTical RANGe lt range_value gt Specifies the vertical range of the TDR TDT response when the vertical tracking mode is set to MANual Vertical range in volts watts or decibels depending on the current UNITs setting and suffix supplied The suffix does not set the UNITs it is ignored TDR 2 4 STIMulus OFF ON ON1
26. he width of the first positive pusle on the screen using the mid threshold levels of the waveform 50 levels with standard measurements selected CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 28 Command lt source gt lt number gt Command lt source gt lt number gt Measure Commands MEASure RISetime lt source gt Measures the rise time of the first displayed edge by measuring the time at the lower threshold of the rising edge measuring the time at the upper threshold of the rising edge then calculating the rise time CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure SOURce lt source gt lt source gt Selects the source for measurements Two sources can be specified with this command All measureme
27. ing referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure TVOLt lt voltage gt lt Sslope gt lt occurrence gt lt source gt Measures the time interval between the trigger event and the defined voltage level and transition Voltage level at which time will be measured The direction of the waveform change when the specified voltage is crossed either rising or falling The number of the crossing to be reported if one the first crossing is reported if two the second is reported and so on CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 31 Command lt source gt lt number gt Command lt source gt lt number gt Command lt source gt lt number gt Measure Commands MEASure VAMPlitude lt source gt Calculates the difference between the top and base voltage of the specified source CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel r
28. ion lt number gt RESPonse lt number gt WMEMory lt number gt Sets the source used by the mask subsystem for interpretation of the SCALe Y1 and SCALe Y2 parameters SCALe Y1 and SCALe Y2 set the vertical boundaries of the coordinate system for mask testing and are affected by the scaling of the selected source For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B indicating which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR response 1 2 3 or 4 24 Measure Commands Command MEASure DELTatime lt source gt lt source gt Measures the delta time between two edges If one source is specified the delta time from the leading edge of the specified source ot the trailing edge of the specified source is measured If two sources are specified the delta time from the leading edge on the first source to the trailing edge on the second source is measured lt source gt CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 o
29. me operation as the ONLY operator and is the preferred operator of the two ONLY is included in this instrument for compatibility with previous instruments 15 lt number gt lt float_value gt Command lt number gt lt float_value gt Command lt number gt lt float_value gt Function Commands For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 A real number FUNCtion 1 2 MAXimum CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt lt float_value gt Defines a function that computes the maximum value of the operand waveform in each time bucket For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 A real number FUNCtion 1 2 MINimum CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt lt float_value gt Defines a function that computes the minimum of each time bucket for the defined operand s waveform For channels
30. nts except MEASure DELTatime are made on the first specified source The delta time measurement uses two sources if two are specified If only one source is specified the delta time measurement uses that source for both of its parameters CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt HISTogram FFT For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 29 Command lt meas_thres_ txt gt lt slope gt lt occurrence gt lt source gt lt number gt Command lt source gt lt number gt Measure Commands MEASURE TEDge lt meas_thres txts lt Sslope gt lt occurrence gt lt source gt Measures the time interval between the trigger event and the specified threshold level and transition UPPer MIDDle LOWer minus for falling plus optional for rising Numeric value representing which edge of the occurrence should be used for the measurement CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possibl
31. o possible channels in the slot is being referenced For functions 1 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 A real number 17 Command lt source gt lt number gt lt float_value gt Function Commands FUNCtion 1 2 VERSus lt source gt lt source gt Defines a function for an X versus Y display The first operand defines the Y axis and the second defines the X axis The Y axis range and offset are initially equal to that of the first operand and can be adjusted with the RANGE and OFFSET commands CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt lt float_value gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 A real number 18 Histogram Commands Command HISTogram WINDow SOURce CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt FFT Selects the source of the histogram window The histogram window will track the source s vertical and horizontal scale lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possi
32. or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure PERiod lt source gt Measures the period of the first complete cycle on the screen using the mid threshold levels of the waveform 50 levels with standard measurements selected CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt 27 lt number gt Command lt source gt lt number gt Command lt source gt lt number gt Measure Commands For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure PREShoot lt source gt Measures the preshoot of the first edge on the screen CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure PWIDth lt source gt Measures t
33. r 4 Command MEASure DUTycycle lt source gt Measures the ratio of the positive pulse width to the period lt source gt CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 25 Command lt source gt lt number gt Command lt source gt lt number gt Measure Commands MEASure FALLtime lt source gt Measures the time at the upper threshold of the falling edge measures the time at the lower threshold of the falling edge then calculates the fall time CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure FREQuency lt source gt Measures the frequency of the first complete cycle on the screen using the mid threshold levels of the waveform 50 levels if standard measurements are selected
34. s per second or feet per second The value is used to determine the distance from the reference plane in TDR and TDT marker measurements lt propagations Dielectric constant or propagation value Command MARKer REFerence TRIGger REFerence Specifies the marker reference for TDR and TDT style markers If the reference is TRIGger then all horizontal axis marker measurements are made with respect to the trigger point If the reference is REFerence then all horizontal axis marker measurements are made with respect to the reference plane You must perform a normalization and reference plane calibration before using a reference plane reference This feature is available only for TDR and TDT applications 21 Command lt number gt Command lt number gt Command Command Marker Commands MARKer X1Ylsource CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt HISTogram FFT Sets the source for the X1 and Y1 markers For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B indicating which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR response 1 2 3 or 4 MARKer X2Y2source CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt HISTogram FFT Sets the source for
35. slot is being referenced For functions 1 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 A real number FUNCtion 1 2 DIVide lt source gt lt source gt Defines a function that divides the first operand by the second operand CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt lt float_value gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 A real number FUNCtion 1 2 FFTMagnitude CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt lt float_value gt Defines a function that computes the FFT magnitude For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 A real number 14 Command lt number gt lt float_value gt Command lt number gt lt float_value gt Command Function Commands FUNCtion 1 2 INTegrate CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt
36. the X2 and Y2 markers For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B indicating which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR response 1 2 3 or 4 MARKer XUNITs SECond METer FEET Sets the units for horizontal display in TDR and TDT applications The units may be in seconds meters or feet relative to the trigger or reference plane The marker mode must be TDRTDT to use this feature See the MARKer REFerence command for information on setting the reference point MARKer YUNITs VOLT OHM REFlect Sets the units for vertical display in TDR and TDT applications The units may be in volts ohms or relection The marker mode must be TDRTDT to use this features 22 Mask Test Commands Command MTESt AMASk SOURce CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt FFT Selects the source for the interpretation of the AMASk XDELta and AMASk YDELta parameters when AMASk UNITs is set to CURRent When UNITs are CURRent the XDELta and YDELta parameters are defined in terms of the measurement system of the selected source lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B indicating which of two possible channels in
37. threshold of the waveform CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure VMAX lt source gt Measures the absolute maximum voltage present on the selected source waveform When FFT is the specified source the maximum value in spectrum is measured CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt FFT For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform memories WMEMory 1 2 3 or 4 For TDR responses 1 2 3 or 4 MEASure VMIDdle lt source gt Measures the voltage value at the middle threshold of the waveform CHANnel lt number gt FUNCtion lt number gt RESPonse lt number gt WMEMory lt number gt For channels an integer 1 through 4 indicating the slot in which the channel resides followed by an optional A or B identifying which of two possible channels in the slot is being referenced For functions 1 or 2 For waveform
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