Fluke PM-3370B User Manual Page 1

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GETTING STARTED WITH SCPI PROGRAMMING 2 - 12 GETTING STARTED WITH SCPI PROGRAMMING2.1 Preparations for SCPI ProgrammingTo program your CombiScope inst

USING THE COMBISCOPE INSTRUMENTS 3 - 813.18 Functions not Directly ProgrammableNot all front panel functions are individually programmable with SCPI c

COMMAND REFERENCE 4 - 14 COMMAND REFERENCEIn the first section the notation conventions concerning the specification of thesyntax and data types are g

4 - 2 COMMAND REFERENCENotes:(1) A message that is specified as a sequency of literals can be sent to theinstrument in any upper or lower case combina

COMMAND REFERENCE 4 - 3Notes:(1) A space character that needs to be part of a message is specified as SP.Spaces within a syntax specification that are

4 - 4 COMMAND REFERENCE<integer> = <digit> {<digit>}Integer notation that specifies a number.<numeric_data> = <NRf> | &l

COMMAND REFERENCE 4 - 54.2 Command SummaryThe following list is a summary of all commands and parameters in alphabeticalorder, beginning with the comm

4 - 6 COMMAND REFERENCECOMMAND:PARAMETERS:NOTES:ABORtno queryCALCulate<n><n> =[1] | 2:DERivativealias = :DIFFerential:POINTs<numeric_da

COMMAND REFERENCE 4 - 7COMMAND:PARAMETERS:NOTES:DISPlay:BRIGhtness<NRf> | MAXimum | MINimum<NRf> = 0.00 .. 1.00:MENU[:NAME]TBMode | TRIGge

4 - 8 COMMAND REFERENCECOMMAND:PARAMETERS:NOTES:INPut<n><n> = [1] | 2 | 3 | 4:COUPlingAC | DC | GROund:FILTer[:LPASs][:STATe]<Boolean&g

COMMAND REFERENCE 4 - 9COMMAND:PARAMETERS:NOTES:SENSe:AVERage[:STATe]<Boolean>:COUNt<NRf> | MAXimum | MINimum<NRf> = 2, 4, .., 4096:

2 - 2 GETTING STARTED WITH SCPI PROGRAMMINGThe parameters of these drivers are defined by the device handler GPIB.COMand by the QuickBASIC program cod

4 - 10 COMMAND REFERENCECOMMAND:PARAMETERS:NOTES:SYSTem:BEEPer:STATe<Boolean>:COMMunicate:SERial:CONTrol:DTRON | STANdard:RTSON | STANdard[:RECe

COMMAND REFERENCE 4 - 11COMMAND:PARAMETERS:NOTES:TRIGger[:SEQuence[1] | STARt]:FILTer:HPASs:FREQuency3E430 KHz = HF-reject:STATe<Boolean>:LPASs:

4 - 12 COMMAND REFERENCENote 1:<voltage_parameters> =[<expected_voltage> [,<resolution>]]Note 2:<measure_function><measure_

COMMAND REFERENCE 4 - 134.3 Command DescriptionsThe description of corresponding commands and queries is combined. Eachcommand/query description start

4 - 14 COMMAND REFERENCEErrors:Specifies possible error numbers plus their meaning. The error number, plusthe corresponding text can be requested by s

COMMAND REFERENCE 4 - 15*CAL? CALibrationSyntax:*CAL?Response:0 | 10 Calibration okay.1 Calibration not okay.Description:This query performs an automa

4 - 16 COMMAND REFERENCE*CLS Clear StatusSyntax:*CLSDescription:The *CLS command clears the following status data structures:1. Clears all Event Statu

COMMAND REFERENCE 4 - 17*ESE Event Status EnableSyntax:*ESE <numeric_data>Query form:*ESE?Response:<integer>Description:The command sets a

4 - 18 COMMAND REFERENCE*ESR? Event Status RegisterSyntax:*ESR?Response:<integer>Description:The *ESR? query reports the contents of the standar

COMMAND REFERENCE 4 - 19*IDN? IdentificationSyntax:*IDN?Response:<manufacturer>,<model>,<serial_number>,<sw_level><manufact

GETTING STARTED WITH SCPI PROGRAMMING 2 - 3•<response> A response string sent by the instrument as a response to aquery.•<eot> An "en

4 - 20 COMMAND REFERENCE*OPC Operation CompleteSyntax:*OPCQuery form:*OPC?Response:1Description:The *OPC command causes the instrument to set the oper

COMMAND REFERENCE 4 - 21*OPT? Option identificationSyntax:*OPT?Response:<option> {,<option>}<option> <name>:<serial_nr>:

4 - 22 COMMAND REFERENCE*RCL Recall instrument setupSyntax:*RCL <numeric_data>Description:The *RCL command restores instrument settings from one

COMMAND REFERENCE 4 - 23*RST ResetSyntax:*RSTDescription:The *RST command resets the instrument. The hardware and software of theinstrument is initial

4 - 24 COMMAND REFERENCE•Cancels or aborts any instrument-dependent action.•Cancels the effect of the *OPC command and the *OPC? query.•Sets the TRIGg

COMMAND REFERENCE 4 - 25*SAV Save instrument setupSyntax:*SAV <numeric_data>Description:The *SAV command saves the current instrument settings i

4 - 26 COMMAND REFERENCE*SRE Service Request EnableSyntax:*SRE <numeric_data>Query form:*SRE?Response:<integer>Description:The command set

COMMAND REFERENCE 4 - 27*STB? Status ByteSyntax:*STB?Response:<integer>Description:The *STB? query reports the contents of the Status Byte regis

4 - 28 COMMAND REFERENCE*TRG TriggerSyntax:*TRGDescription:The *TRG command triggers the instrument by generating a Group ExecuteTrigger (GET) code.Ex

COMMAND REFERENCE 4 - 29*TST? Self-testSyntax:*TST?Response:0 | 10 Self-test okay.1 Self-test not okay.Description:The *TST? query initiates a RAM/ROM

2 - 4 GETTING STARTED WITH SCPI PROGRAMMING2.2 Initializing the CombiScope Instrument2.2.1 How to reset the CombiScope instrumentThe instrument itself

4 - 30 COMMAND REFERENCE*WAI Wait-to-continueSyntax:*WAIDescription:The *WAI command prevents the instrument to execute any further commanduntil all p

COMMAND REFERENCE 4 - 31ABORtSyntax:ABORtDescription:The ABORt command resets the trigger system and places it in the "IDLE" state.Pending a

4 - 32 COMMAND REFERENCECALCulate<n>:DERivative:POINtsCALCulate<n>:DERivative:STATeSyntax:CALCulate<n>:DERivative:POINts <numeric

COMMAND REFERENCE 4 - 33CALCulate<n>:FEEDSyntax:CALCulate<n>:FEED "<trace_name>"Note: The parameter "<trace_name&g

4 - 34 COMMAND REFERENCECALCulate<n>:FILTer[:GATE]:FREQuency:POINtsCALCulate<n>:FILTer[:GATE]:FREQuency:STATeSyntax:CALCulate<n>:FIL

COMMAND REFERENCE 4 - 35CALCulate<n>:INTegral:STATeSyntax:CALCulate<n>:INTegral:STATe <Boolean><n> [1] | 2Query form:CALCulate

4 - 36 COMMAND REFERENCECALCulate<n>:MATH[:EXPRession]Syntax:CALCulate<n>:MATH[:EXPRession] ( <trace_name> <operation><trac

COMMAND REFERENCE 4 - 37CALCulate<n>:MATH:STATeSyntax:CALCulate<n>:MATH:STATe <Boolean><n> [1] | 2Query form:CALCulate<n>

4 - 38 COMMAND REFERENCECALCulate<n>:TRANsform:FREQuency:STATeCALCulate<n>:TRANsform:FREQuency:TYPECALCulate<n>:TRANsform:FREQuency:

COMMAND REFERENCE 4 - 39Example:Send → CALCulate2:TRANsform:FREQuency:TYPE RELativeSelects relative MATH2-FFT calculation.Send → CALCulate2:TRANsform:

GETTING STARTED WITH SCPI PROGRAMMING 2 - 52.3 Error ReportingInstrument errors are usually caused by programming or setting errors. They arereported

4 - 40 COMMAND REFERENCECALCulate<n>:TRANsform:HISTogram:STATeSyntax:CALCulate<n>:TRANsform:HISTogram:STATe <Boolean><n> [1] |

COMMAND REFERENCE 4 - 41CALibration[:ALL]Syntax:CALibration[:ALL]Query form:CALibration[:ALL]?Response:0 | 1Description:The CALibration command perfor

4 - 42 COMMAND REFERENCEExample:Send → *RST Resets the instrument.Send → CALibration Starts auto calibration.Send → STATus:OPERation:CONDition? Reques

COMMAND REFERENCE 4 - 43CONFigureSyntax:CONFigure[:VOLTage]<measure_function>[[ (<voltage_parameters>),] <measure_parameters>][,<

4 - 44 COMMAND REFERENCEExample 1:Send → CONFigure:VOLTage:AC 0.6,(@2) Configures AC-RMS channel 2, expected voltage 600 mV.Send → INPut2:COUPling AC

COMMAND REFERENCE 4 - 45DISPlay:BRIGhtnessSyntax:DISPlay:BRIGhtness <Numeric_data> | MINimum | MAXimum<Numeric_data> 0.0 .. 1.0MINimum Equ

4 - 46 COMMAND REFERENCEDISPlay:MENU[:NAME]Syntax:DISPlay:MENU[:NAME] <character_data>Description:The DISPlay:MENU command can be used to select

COMMAND REFERENCE 4 - 47DISPlay:MENU:STATeSyntax:DISPlay:MENU:STATe <Boolean>Query form:DISPlay:MENU:STATe?Response:0 | 10 Display turned off.1

4 - 48 COMMAND REFERENCEDISPlay:WINDow[1]:TEXT<n>:DATA?Syntax:DISPlay:WINDow[1]:TEXT<n>:DATA?[1] Indicates that the measurement result fie

COMMAND REFERENCE 4 - 49The measurement data functions must be enabled first, or the error message -221"Settings conflict" is generated. If

2 - 6 GETTING STARTED WITH SCPI PROGRAMMING2.4 Acquiring TracesTrace acquisitions are started via the INITiate commands. A single acquisition isdone b

4 - 50 COMMAND REFERENCEDISPlay:WINDow2:TEXT[1]:CLEarSyntax:DISPlay:WINDow2:TEXT[1]:CLEar2 Indicates that the user text field is window 2.[1] Is optio

COMMAND REFERENCE 4 - 51DISPlay:WINDow2:TEXT[1]:DATASyntax:DISPlay:WINDow2:TEXT[1]:DATA <string_data> | <block_data>2 Indicates that the u

4 - 52 COMMAND REFERENCETable 4.1 Display character set for CombiScope instrumentsNotes: - The left value (dec) is the decimal value of the code a

COMMAND REFERENCE 4 - 53DISPlay:WINDow2:TEXT[1]:STATeSyntax:DISPlay:WINDow2:TEXT[1]:STATe <Boolean>2 Indicates that the user text field is windo

4 - 54 COMMAND REFERENCEFETCh?Syntax:FETCh[:VOLTage]<measure_function>? [[ (<voltage_parameters>),] <measure_parameters>][,<cha

COMMAND REFERENCE 4 - 55Description:The FETCh? queries are part of the measurement instruction set. They return thesignal characteristic from the last

4 - 56 COMMAND REFERENCEExample 1:Send → MEASure:VOLTage:AC? 0.6,(@2) Measures AC- RMS on channel 2, expected voltage 600 mV.Read ← <the measured A

COMMAND REFERENCE 4 - 57FORMat[:DATA]Syntax:FORMat[:DATA] INTeger[, 8 | 16]INTeger,8 Trace point of 8 bits (one byte).INTeger,16 Trace point of 16 bit

4 - 58 COMMAND REFERENCEHCOPy:DATA?Syntax:HCOPy:DATA?Response:<indefinite_block>Description:This query returns a data block of indefinite length

COMMAND REFERENCE 4 - 59HCOPy:DEViceSyntax:HCOPy:DEVice HPGL | HP7440 | HP7550 | HP7475A| HP7470A | PM8277 | PM8278 | FX80 | LQ1500 | HP2225| HPLASER

GETTING STARTED WITH SCPI PROGRAMMING 2 - 72.4.1 How to acquire a single shot traceIn the program example, a single shot trace acquisition of 8192 8-b

4 - 60 COMMAND REFERENCEINITiate:CONTinuousSyntax:INITiate:CONTinuous <Boolean>Query form:INITiate:CONTinuous?Response:1 | 01 Continuous automat

COMMAND REFERENCE 4 - 61INITiate[:IMMediate]Syntax:INITiate[:IMMediate]Description:This command causes the trigger system to be initiated once only, i

4 - 62 COMMAND REFERENCEINPut<n>:COUPlingSyntax:INPut<n>:COUPling AC | DC | GROund<n> [1] | 2 | 3 | 4Query form:INPut<n>:COUPl

COMMAND REFERENCE 4 - 63INPut<n>:FILTer[:LPASs][:STATe]INPut<n>:FILTer[:LPASs]:FREQuency?Syntax:INPut<n>:FILTer[:LPASs][:STATe] <

4 - 64 COMMAND REFERENCEINPut<n>:IMPedanceSyntax:INPut<n>:IMPedance <NRf> | MINimum | MAXimum<n> [1] | 2 | 3 | 4<NRf> 50

COMMAND REFERENCE 4 - 65INPut<n>:POLaritySyntax:INPut<n>:POLarity NORMal | INVerted<n> 2 | 4Note: Input 4 is not applicable for PM33

4 - 66 COMMAND REFERENCEINSTrument:NSELectINSTrument[:SELect]Syntax:INSTrument:NSELect <NRf> | MINimum | MAXimumINSTrument[:SELect] DIGital | AN

COMMAND REFERENCE 4 - 67MEASure?Syntax:MEASure[:VOLTage]<measure_function>? [[ (<voltage_parameters>),] <measure_parameters>][,<c

4 - 68 COMMAND REFERENCE:FALL:OVERshootNo parameters. Measures the overshoot of the first falling edgeof a waveform, expressed as a percentage of the

COMMAND REFERENCE 4 - 69:MINimumNo parameters. Measures the MINimum instantaneous voltagevalue of the waveform. The unit of MINimum is volt.:NDUTycycl

2 - 8 GETTING STARTED WITH SCPI PROGRAMMING2.4.2 How to acquire repetitive tracesIn the program example, 5 trace acquisitions of 512 16-bit samples ar

4 - 70 COMMAND REFERENCE:TMINimumNo parameters. Measures the time of the first occurrence of theMINimum voltage of the input signal. The unit of TMINi

COMMAND REFERENCE 4 - 71<expected_time> = <NRf> | DEFaultSpecifies the time value that is expected to bemeasured. The unit of <expected

4 - 72 COMMAND REFERENCELimitations:The oscilloscope is only able to calculate rise and fall time characteristics, if the<low_reference> and <

COMMAND REFERENCE 4 - 73Description:The MEASure? queries are part of the measurement instruction set. They providean automatic measurement of the sign

4 - 74 COMMAND REFERENCEREAD?Syntax:READ[:VOLTage]<measure_function>?[[ (<voltage_parameters>),] <measure_parameters>][,<channel_

COMMAND REFERENCE 4 - 75Note: Because the READ? query leaves instrument settings unaffected, it canvery well be used as follows to read a measured val

4 - 76 COMMAND REFERENCESENSe:AVERage[:STATe]Syntax:SENSe:AVERage[:STATe] <Boolean>Query form:SENSe:AVERage[:STATe]?Response:0 | 10 AVERAGE func

COMMAND REFERENCE 4 - 77SENSe:AVERage:COUNtSENSe:AVERage:TYPE?Syntax:SENSe:AVERage:COUNt <NRf><NRf> 2 | 4 | 8 | 16 | ... | 2048 | 4096SENS

4 - 78 COMMAND REFERENCESENSe:FUNCtion:OFFSENSe:FUNCtion[:ON]SENSe:FUNCtion:STATe?Syntax:SENSe:FUNCtion:OFF "XTIMe:VOLTage<n>"SENSe:FU

COMMAND REFERENCE 4 - 79The parameters "XTIMe:VOLTage<n>" and "XTIMe:VOLTage:SUM <i,j>" are ofthe type <string_data

GETTING STARTED WITH SCPI PROGRAMMING 2 - 92.5 Measuring Signal CharacteristicsThe measurement instructions allow you to make a complete measurement.

4 - 80 COMMAND REFERENCESENSe:SWEep:OFFSet:TIMESyntax:SENSe:SWEep:OFFSet:TIME <NRf> | MINimum | MAXimum<NRf> The trigger delay time in sec

COMMAND REFERENCE 4 - 81SENSe:SWEep:PDETection[:STATe]Syntax:SENSe:SWEep:PDETection[:STATe] <Boolean>Query form:SENSe:SWEep:PDETection[:STATe]?R

4 - 82 COMMAND REFERENCESENSe:SWEep:REALtime[:STATe]Syntax:SENSe:SWEep:REALtime[:STATe] <Boolean>Query form:SENSe:SWEep:REALtime[:STATe]?Respons

COMMAND REFERENCE 4 - 83SENSe:SWEep:TIMESyntax:SENSe:SWEep:TIME <NRf> | MINimum | MAXimum<NRf> The sweep time in seconds.MINimum Selects t

4 - 84 COMMAND REFERENCELimitations:•The MTB value of 2 ns is only possible for the PM339xB CombiScopeinstruments.•If SENSe:SWEep:REALtime is ON, the

COMMAND REFERENCE 4 - 85SENSe:SWEep:TIME:AUTOSyntax:SENSe:SWEep:TIME:AUTO <Boolean>Query form:SENSe:SWEep:TIME:AUTO?Response:0 | 10 Autoranging

4 - 86 COMMAND REFERENCESENSe:VOLTage<n>[:DC]:RANGe:AUTOSyntax:SENSe:VOLTage<n>[:DC]:RANGe:AUTO <Boolean><n> [1] | 2 | 3 | 4No

COMMAND REFERENCE 4 - 87SENSe:VOLTage<n>[:DC]:RANGe:OFFSetSyntax:SENSe:VOLTage<n>[:DC]:RANGe:OFFSet <NRf>| MINimum | MAXimum<n>

4 - 88 COMMAND REFERENCESENSe:VOLTage<n>[:DC]:RANGe:PTPeakSyntax:SENSe:VOLTage<n>[:DC]:RANGe:PTPeak <NRf>| MINimum | MAXimum<n>

COMMAND REFERENCE 4 - 89After a *RST command, the peak-to-peak value is reset as follows:- For channel 1 to 1.6V: vertical sensitivity = 200 mV/div.-

2 - 10 GETTING STARTED WITH SCPI PROGRAMMING2.5.1 How to make a single shot measurementThe MEASure? query allows you to make a single-shot measurement

4 - 90 COMMAND REFERENCESTATus:OPERation:CONDition?STATus:OPERation:ENABleSTATus:OPERation[:EVENt]?STATus:OPERation:NTRansitionSTATus:OPERation:PTRans

COMMAND REFERENCE 4 - 91The STATus:OPERation:PTRansition command sets the contents of the positivetransition filter of the operation register structur

4 - 92 COMMAND REFERENCESTATus:PRESetSyntax:STATus:PRESetDescription:The PRESet command is used to set the status data structure in such a way, thatde

COMMAND REFERENCE 4 - 93STATus:QUEStionable:CONDition?STATus:QUEStionable:ENABleSTATus:QUEStionable[:EVENt]?STATus:QUEStionable:NTRansitionSTATus:QUES

4 - 94 COMMAND REFERENCEThe STATus:QUEStionable:PTRansition command sets the contents of thepositive transition filter of the questionable register st

COMMAND REFERENCE 4 - 95STATus:QUEue[:NEXT]?Syntax:STATus:QUEue[:NEXT]?Response:<error_number>,"<error_description>"<error_nu

4 - 96 COMMAND REFERENCESYSTem:BEEPerSYSTem:BEEPer:STATeSyntax:SYSTem:BEEPerSYSTem:BEEPer:STATe <Boolean>Query form:SYSTem:BEEPer:STATe?Response

COMMAND REFERENCE 4 - 97SYSTem:COMMunicate:SERial:CONTrol:DTRSYSTem:COMMunicate:SERial:CONTrol:RTSSyntax:SYSTem:COMMunicate:SERial:CONTrol:DTR ON | ST

4 - 98 COMMAND REFERENCESYSTem:COMMunicate:SERial[:RECeive]:BAUDSYSTem:COMMunicate:SERial:TRANsmit:BAUDSYSTem:COMMunicate:SERial[:RECeive]:BITSSYSTem:

COMMAND REFERENCE 4 - 99Query form: SYSTem:COMMunicate:SERial[:RECeive]:PACE?SYSTem:COMMunicate:SERial:TRANsmit:PACE?Response: XON | NONEXON X-on/X-of

IITRADEMARKSMicrosoft, and Microsoft QuickBASIC are trademarks of Microsoft Corporation.IBM is a registered trademark of International Business Machin

USING THE COMBISCOPE INSTRUMENTS 3 - 13 USING THE COMBISCOPE INSTRUMENTS3.1 IntroductionThis chapter explains how to access the functions of the Combi

4 - 100 COMMAND REFERENCESYSTem:DATESyntax: SYSTem:DATE <year>,<month>,<day><year> <NRf> | MINimum | MAXimumRange from 1

COMMAND REFERENCE 4 - 101SYSTem:ERRor?Syntax:SYSTem:ERRor?Response:<error_number>,"<error_description>"<error_number> A pr

4 - 102 COMMAND REFERENCESYSTem:KEYSyntax:SYSTem:KEY <NRf> | MINimum | MAXimum<NRf> Reference number to a key:1, 2, 3, 4, 5, 6: softkey-1

COMMAND REFERENCE 4 - 103Table 4.3 Reference number for front panel keysNotes: • Simulation of pressing the CAL key (102) is not useful, becauseca

4 - 104 COMMAND REFERENCEExample 1:Send → SYSTem:KEY 101 Simulates the pressing of AUTOSET.Send → SYSTem:KEY?Read ← 101 Returns the last key simulatio

COMMAND REFERENCE 4 - 105SYSTem:SETSyntax:SYSTem:SET <indefinite_block>Query form:SYSTem:SET? [<node_nr> | MINimum | MAXimum]<node_nr&g

4 - 106 COMMAND REFERENCELimitations:For the PM33x0B CombiScope instruments:- Input channel 3 (CH3) is not applicable.- Input channel 4 (CH4) is limit

COMMAND REFERENCE 4 - 107SYSTem:TIMESyntax:SYSTem:TIME <hour>,<minute>,<second><hour> <NRf> | MINimum | MAXimumRange fro

4 - 108 COMMAND REFERENCESYSTem:VERSion?Syntax:SYSTem:VERSion?Response:YYYY.VYYYY The year number of the SCPI version.V The approved revision number w

COMMAND REFERENCE 4 - 109TRACe:COPYSyntax:TRACe:COPY <destination_trace>,<source_trace>Alias:DATA:COPY <destination_trace>,<sourc

3 - 2 USING THE COMBISCOPE INSTRUMENTSAs the example already shows, the commands are easy to learn and self-explanatory to both novice and expert user

4 - 110 COMMAND REFERENCETRACe[:DATA]Syntax:TRACe[:DATA] <destination_trace> , <NRf> | <definite_block>Alias:DATA[:DATA] <destina

COMMAND REFERENCE 4 - 111Description:The TRACe? query reads a binary trace block from channel acquisition memory(CH1 to CH4) or from register memory (

4 - 112 COMMAND REFERENCESend → TRACe? CH1 Requests channel 1 trace.Read ← <block_data> Reads channel 1 trace.Determine nr.of.samples from <b

COMMAND REFERENCE 4 - 113TRACe:POINtsSyntax:TRACe:POINts <source_trace> [,<acquisition_length>]Alias:DATA:POINts <source_trace> [,&l

4 - 114 COMMAND REFERENCEDescription:Defines the trace length (number of trace points) for all traces. The acquisitionlength and the length of all int

COMMAND REFERENCE 4 - 115TRIGger[:SEQuence[1]]:FILTer:HPASs:FREQuencyTRIGger[:STARt]:FILTer:HPASs:FREQuencyTRIGger[:SEQuence[1]]:FILTer:HPASs:STATeTRI

4 - 116 COMMAND REFERENCEDescription:The TRIGger:FILTer:HPASs:FREQuency command sets the MTB cutoff frequencyalways at the fixed value of 30000 Hz (al

COMMAND REFERENCE 4 - 117TRIGger[:SEQuence[1]]:FILTer:LPASs:FREQuencyTRIGger[:STARt]:FILTer:LPASs:FREQuencyTRIGger[:SEQuence[1]]:FILTer:LPASs:STATeTRI

4 - 118 COMMAND REFERENCEDescription:The TRIGger:FILTer:LPASs:FREQuency command sets the MTB cutofffrequency, which defines the trigger coupling. The

COMMAND REFERENCE 4 - 119TRIGger[:SEQuence[1]]:HOLDoffTRIGger[:STARt]:HOLDoffSyntax:TRIGger[:SEQuence[1]]:HOLDoff <NRf> | MINimum | MAXimumAlias

USING THE COMBISCOPE INSTRUMENTS 3 - 33.2 Fundamental Programming ConceptsThe remote operation of your CombiScope instrument can be accessed usingdiff

4 - 120 COMMAND REFERENCETRIGger[:SEQuence[1]]:LEVelTRIGger[:SEQuence[1]]:LEVel:AUTOTRIGger[:STARt]:LEVelTRIGger[:STARt]:LEVel:AUTOSyntax:TRIGger[:SEQ

COMMAND REFERENCE 4 - 121After a *RST command, the trigger level is MAXimum and auto level peak-peakis switched off.Notice that there exists a couplin

4 - 122 COMMAND REFERENCETRIGger[:SEQuence[1]]:SLOPeTRIGger[:STARt]:SLOPeSyntax:TRIGger[:SEQuence[1]]:SLOPe POSitive | NEGative | EITHerAlias:TRIGger[

COMMAND REFERENCE 4 - 123Example:Send → CONFigure:AC (@2) Configures AC-RMS CH2.Send → SENSe:SWEep:REALtime ON Sets real-time mode on.Send → TRIGger:S

4 - 124 COMMAND REFERENCETRIGger[:SEQuence[1]]:SOURceTRIGger[:STARt]:SOURceSyntax:TRIGger[:SEQuence[1]]:SOURce IMMediate | INTernal<n> |EXTernal

COMMAND REFERENCE 4 - 125Description:Controls the trigger source. The command selects the source, and the queryreturns the source that triggers the ac

4 - 126 COMMAND REFERENCETRIGger[:SEQuence[1]]:TYPETRIGger[:STARt]:TYPESyntax:TRIGger[:SEQuence[1]]:TYPE EDGE | VIDeo | LOGicAlias:TRIGger[:STARt]:TYP

COMMAND REFERENCE 4 - 127TRIGger[:SEQuence[1]]:VIDeo:FIELd[:NUMBer]TRIGger[:STARt]:VIDeo:FIELd[:NUMBer]TRIGger[:SEQuence[1]]:VIDeo:FIELd:SELectTRIGger

4 - 128 COMMAND REFERENCEDescription:The TRIGger:VIDeo:FIELd:SELect command programs the video trigger mode to"field" or "lines".

COMMAND REFERENCE 4 - 129TRIGger[:SEQuence[1]]:VIDeo:FORMat[:TYPE]:LPFRameTRIGger[:STARt]:VIDeo:FORMat[:TYPE]:LPFRameTRIGger[:SEQuence[1]]:VIDeo:FORMa

3 - 4 USING THE COMBISCOPE INSTRUMENTSTrade-off: This way of programming is cumbersome and tricky, becauseadditional information on the front panel di

4 - 130 COMMAND REFERENCEResponse: 525 | 625 | 1050 | 1125 | 1250525 NTSC standard selected (525 lines/frame).625 PAL (default) or SECAM standard sele

COMMAND REFERENCE 4 - 131Example:Send → TRIGger:VIDeo:FORMat NTSC Selects NTSC, 525lines/frame.Send → TRIGger:VIDeo:FORMat PAL Selects PAL, 625lines/f

4 - 132 COMMAND REFERENCETRIGger[:SEQuence[1]]:VIDeo:LINETRIGger[:STARt]:VIDeo:LINETRIGger[:SEQuence[1]]:VIDeo:SSIGnal[:POLarity]TRIGger[:STARt]:VIDeo

COMMAND REFERENCE 4 - 133Description:The TRIGger:VIDeo:LINE command selects the video line number. Depending onthe video system selected, the followin

APPLICATION PROGRAM EXAMPLES A - 1APPENDIX AAPPLICATION PROGRAM EXAMPLESThe program examples are written for the CombiScopes with the IEEE optioninsta

A - 2 APPLICATION PROGRAM EXAMPLESA.1 Measuring Signal CharacteristicsMeasuring signal characteristics can be done in either of the following ways:1)

APPLICATION PROGRAM EXAMPLES A - 3StopEOI% = 256 ’Termination Receive on EOICLS ’Clears Output ScreenCALL SendIFC(0) ’Clears the GPIB interfaceCALL IB

A - 4 APPLICATION PROGRAM EXAMPLESA.1.2 Making programmed measurementsIn the following example the overshoot value on the rising edge of the ProbeAdju

APPLICATION PROGRAM EXAMPLES A - 5A.1.3 Reading measurement valuesIn the following example measurement values are read into the computer ascalculated

A - 6 APPLICATION PROGRAM EXAMPLESA.3 Saving/Recalling Instrument SetupsThe following examples use the save/recall features for instrument setups.Savi

USING THE COMBISCOPE INSTRUMENTS 3 - 5The measurement instructions are easy to use and do not require any specialknowledge of the instrument. The prog

APPLICATION PROGRAM EXAMPLES A - 7•Routine ServReq does the following:- Serial polls the status byte to reset the SRQ mechanism.- Reads the ESR byte t

A - 8 APPLICATION PROGRAM EXAMPLES•If an SRQ is generated (acquisition finished), the dT cursor value is read andprinted by sending: DISPlay:WINDow:TE

APPLICATION PROGRAM EXAMPLES A - 9A.4 Making a Hardcopy of the ScreenIn the following example a hardcopy of the screen picture is made as follows:1) E

A - 10 APPLICATION PROGRAM EXAMPLESA.5 Pass/Fail TestingThe following examples use the SYSTem:SET command for storing and restoringinstrument setups,

APPLICATION PROGRAM EXAMPLES A - 11•Routine Save.Envreg does the following:- Requests for a memory register to read the envelope from, e.g. 2_1.- Requ

A - 12 APPLICATION PROGRAM EXAMPLESA.5.3 Running a pass/fail testIn the following example the current pass/fail test setup is started and monitored.Du

CROSS REFERENCES B - 1APPENDIX B CROSS REFERENCESB.1 Cross Reference Front Panel Keys / CommandsThe front panel picture is copied from the operation g

B - 2 CROSS REFERENCES

CROSS REFERENCES B - 3B.2 Cross Reference Softkey Menus / CommandsThe menu pictures are copied from or refer to menus in the operation guide. Therelat

B - 4 CROSS REFERENCESB.2.2 CURSORS menuProgrammable with the *SAV/*RCL and SYST:SET commands.CURSORS(MEAS)(MATH)CURSORS(MATH)1)CURSORSREADOUTCURSORSR

3 - 6 USING THE COMBISCOPE INSTRUMENTSFunctions in a particular subsystem are always controlled by commands thatbegin with the name of that subsystem.

CROSS REFERENCES B - 5B.2.3 DISPLAY menuXvsYTEXTEDITUSERTEXTST7084✱RCL/✱SAVSYST:SETDISP:WIND2:TEXT:DATADISP:WIND2:TEXT:CLEDISP:WIND2:TEXT:STATDISPLAYX

B - 6 CROSS REFERENCESB.2.4 MATHPLUS MATH menuMATHMATHPLUSMATHPLUSMATHSCALEMATHFILTERPARAMMATH 1 MATH 21 DIV=21.3mUWINDOW31samplesauto-scaleOFFSET26.8

CROSS REFERENCES B - 7MATHDIFPARAMMATH nMATHINTEGRPARAMMATHFFTPARAMMATHAREAWINDOW31samplesaddsubmulfilterintdifffthisLIMITEDyes noLIMITEDyes noLIMITED

B - 8 CROSS REFERENCES

CROSS REFERENCES B - 9B.2.5 MEASURE menuB.2.6 DTB (DEL’D TB) menuProgrammable with the *SAV/*RCL and SYST:SET commands.MEASUREMEASURE SELECTMEAS nSELE

B - 10 CROSS REFERENCESB.2.7 SAVE/RECALL menuB.2.8 SETUPS menuProgrammable with the *SAV/*RCL and SYST:SET commands.TRAC:COPYTRAC[:DATA]?RECALL∆SAVEm1

CROSS REFERENCES B - 11B.2.9 TB MODE menuTB MODEEVENTDELAYACQLENGTHCONFIRMTB MODERETURNRETURNTB MODERETURNST7088INIT:CONTONOFFSENS:SWE:REALONOFFSYST:S

B - 12 CROSS REFERENCESB.2.10 TRIGGER menuTRIGGERMAIN TBTRIGGERMAIN TBTRIGGERMAIN TBTRIGGERMAIN TBTRIGGERMAIN TBTRIGGERMAIN TBTRIGGERTRIGGERTRACKTRACK

CROSS REFERENCES B - 13TRIGGERMAIN TBTRIGGERMAIN TBVIDEOSYSTEMTRIGGERMAIN TBTRIG:VID:FORM[:TYPE]TRIG:VID:FORM:LPFRTRACKTRACK TRACKedge tvlogicedge tvl

B - 14 CROSS REFERENCESB.2.11 UTILITY menuUTILITYUTIL UTILPROBEUTILRS232SETUPUTILITYPRINT &UTILPROBECORRUTILREMOTECONTRLautosetPARITYgndno oddsetu

USING THE COMBISCOPE INSTRUMENTS 3 - 7Example for the instrument cursor settings:Send → SYSTem:SET? 32 Queries the oscilloscope for theinstrument

CROSS REFERENCES B - 15UTILAUTOSETUTILREMOTECONTRLUTILAUTOSETTRIGEDITUSERTEXTUTILAUTOSETPROBEUTILSCREEN & SOUNDUTILAUTOSETVERTac dcunaffect1M 50Ωu

B - 16 CROSS REFERENCESB.2.12 VERTICAL menuVERTICALMENUINP:FILTINP1:IMPINP2:IMPINP3:IMPINP4:IMPONOFFBW LIMITon off50Ω CH1on off50Ω CH2on off50Ω CH3on

CROSS REFERENCES B - 17B.3 Cross Reference Functions / CommandsThis section describes the SCPI commands that are related to the oscilloscopefunctions

B - 18 CROSS REFERENCESFUNCTION + KEYS/MENUSRELATED SCPI COMMAND(S)AUTOSETkey AUTOSETSYSTem:KEY 101AUTOSET SEQUENCEkey STATUSSYSTem:KEY 201key TEXT OF

CROSS REFERENCES B - 19FUNCTION + KEYS/MENUSRELATED SCPI COMMAND(S)CURSOR READOUTkey CURSORSSYSTem:KEY 204menu CURSORS DISPlay:MENU CURSorsREADOUTDISP

B - 20 CROSS REFERENCESFUNCTION + KEYS/MENUSRELATED SCPI COMMAND(S)FFT - FAST FOURIER TRANSFORMATION (MATHPLUS)key MATHSYSTem:KEY 111menu MATHDISPlay:

CROSS REFERENCES B - 21FUNCTION + KEYS/MENUSRELATED SCPI COMMAND(S)INPUT COUPLINGINPut[<n>]:COUPling AC|DC|GROundkey ON (toggled ON)SENSe:FUNCti

B - 22 CROSS REFERENCESFUNCTION + KEYS/MENUSRELATED SCPI COMMAND(S)MATHEMATICSCALCulate[1|2]: ...key MATHmenu MATHDISPlay:MENU MATH-softkeys n = 1 ..

CROSS REFERENCES B - 23FUNCTION + KEYS/MENUSRELATED SCPI COMMAND(S)PROBE SCALING (MATHPLUS)*SAV, *RCLSYSTem:SETPROBE UTILITIESkey UTILITYSYSTem:KEY 10

B - 24 CROSS REFERENCESFUNCTION + KEYS/MENUSRELATED SCPI COMMAND(S)STANDARD FRONT/FRONT PANEL RESETSYSTem:SET*RSTkey SETUPSSYSTem:KEY 103menu FRONT SE

3 - 8 USING THE COMBISCOPE INSTRUMENTS3.3 Measuring Signal CharacteristicsAs explained in section 3.2.1 "Measurement instructions", the meas

CROSS REFERENCES B - 25FUNCTION + KEYS/MENUSRELATED SCPI COMMAND(S)TIMEBASE MODESkey TB MODESYSTem:KEY 409menu TB MODEDISPlay:MENU TBMode-softkeys n =

B - 26 CROSS REFERENCESFUNCTION + KEYS/MENUSRELATED SCPI COMMAND(S)TRIGGERING OF SWEEPS-send GET code*TRG-abort trigger systemABORt-initiate trigger s

CROSS REFERENCES B - 27FUNCTION + KEYS/MENUSRELATED SCPI COMMAND(S)TV TRIGGERTRIGger:TYPE VIDEOkey TRIGGERSYSTem:KEY 209menu TRIGGERDISPlay:MENU TRIGg

B - 28 CROSS REFERENCESFUNCTION + KEYS/MENUSRELATED SCPI COMMAND(S)VOLT MEASUREMENTSkey MEASURESYSTem:KEY 110menu MEASUREDISPlay:MENU MEASure-softkeys

MANUAL CONVENTIONS C - 1APPENDIX C MANUAL CONVENTIONSC.1 Abbreviations UsedABBREVIATIONS USED (in alphabetical order)- ADC = Analog to Digital Convert

C - 2 MANUAL CONVENTIONS- IDY = Identify- IDN = Identification- IEC = International Electrotechnical Commission- IEEE = Institute of Electrical and El

MANUAL CONVENTIONS C - 3- RAM = Random Access Memory- RCL = Recall- REN = Remote Enable- RL = Remote Local- rms = root mean square- rmt = response mes

C - 4 MANUAL CONVENTIONSC.2 Glossary of Symbols Used- µV = micro voltage (1E-6)- dB = decibell- dBm = decibell with respect to 1 mW- dBµV = decibell w

MANUAL CONVENTIONS C - 5C.4 List of FiguresFigure 3.1 The instrument model for CombiScope instrumentsFigure 3.2 Pulse characteristicsFigure 3.3 The tr

C - 6 MANUAL CONVENTIONSC.5 Documents Referenced1) General Purpose Interface Bus (GPIB)IEC 625-1 / IEEE-488.1Order number: 4822 872 801932) SCPI - Sta

USING THE COMBISCOPE INSTRUMENTS 3 - 93.3.2 Benefits of using parametersThe generic form of a measurement instruction is as follows:MEASure[:VOLTage]:

STANDARDS INFORMATION D - 1APPENDIX DSTANDARDS INFORMATIOND.1 SCPI Conformance InformationAll commands comply to the SCPI standard 1994.0, except for

D - 2 STANDARDS INFORMATIOND.2 List of Implemented IEEE-488.2 Syntactical ElementsThe following list of elements is used in the common and SCPI comman

STANDARDS INFORMATION D - 3<PROGRAM MESSAGE UNIT SEPARATOR>Separates the <PROGRAM MESSAGE UNIT> elements from one another ina <PROGRAM

SUMMARY OF SYSTEM SETTINGS E - 1APPENDIX ESUMMARY OF SYSTEM SETTINGSThe following table identifies which instrument settings belong to which node.NODE

E - 2 SUMMARY OF SYSTEM SETTINGS18Delayed timebase settingslength = 13 bytesdelayed timebase, trigger mode edge, TV, trigger level, delayedtimebase on

SUMMARY OF SYSTEM SETTINGS E - 365 | 66MATH1/2 settingslength = 22 bytesMATH1/2 selection, limited on/off, FFT filter Hamming/Hanning/Rectangle, adjus

INDEX I - 1Numerics16-bit samples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-333 wire . . . . .

I - 2 INDEXBBandwidth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22, 3-40, 4-23, 4-24, 4-63Bandwidth Limiter. . . . . . . . .

INDEX I - 3DC coupling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21, 3-22, 4-117Decimal numeric program data. .

I - 4 INDEXEXAPPA32.BAS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-8EXAPPA4.BAS. . . . . . . . .

3 - 10 USING THE COMBISCOPE INSTRUMENTSExamples:MEASure:AMPLitude?This query measures the amplitude of a waveform at the default inputchannel 1. After

INDEX I - 5GET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-16, 3-20, 4-28, 4-56, 4-124, B-26Glitch settings. . . . . . . . . . .

I - 6 INDEXInternal memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22, 4-24, 4-25Invert . . . . . . . . . . . .

INDEX I - 7Measuring signal characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2Memory. . . . . . . . . . . . . .

I - 8 INDEXPPacing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-99PAL. . . . . . . .

INDEX I - 9Questionable condition register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-93Questionable event enable register

I - 10 INDEXScreen position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-31, 3-34, 3-49SECAM. . . . . . . . . . . . .

INDEX I - 11TT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-62T1-trg . . . .

I - 12 INDEXTV standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-23, 4-130TV trigger . . . . . . . .

IIICONTENTS Page1 ABOUT THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11.1 What this Manual Contains . . . . . . . .

USING THE COMBISCOPE INSTRUMENTS 3 - 113.3.3 Waveform measurementsThe following figure shows the terms used for pulse measurements and the keywords th

3 - 12 USING THE COMBISCOPE INSTRUMENTSExamples:MEASure:FALL:TIME? (@3)Measures the time interval during which the pulse at channel 3 decreasesfrom 90

USING THE COMBISCOPE INSTRUMENTS 3 - 133.3.4 Customizing settingsOften, you need more precise control of the measurements than possible with theMEASur

3 - 14 USING THE COMBISCOPE INSTRUMENTSREAD? Requests to execute the default DC measurement.Since this is not possible with the chosenconfiguration, a

USING THE COMBISCOPE INSTRUMENTS 3 - 15READ:FREQuency? Starts the acquisition and returns the measuredfrequency.READ:FREQuency? Starts a next acquisit

3 - 16 USING THE COMBISCOPE INSTRUMENTS3.3.7 Trigger control via GPIBYou need a separate GPIB command to start a measurement synchronized withother in

USING THE COMBISCOPE INSTRUMENTS 3 - 173.3.8 Fetching characteristics from memory tracesThe FETCh? query not only allows you to determine a characteri

3 - 18 USING THE COMBISCOPE INSTRUMENTS3.4 Acquisition3.4.1 Acquisition controlSeveral commands exist to control the acquisition process. The followin

USING THE COMBISCOPE INSTRUMENTS 3 - 19or by setting INITiate:CONTinuous to ON. The INITiate[:IMMediate] commandcauses the CombiScope instrument to pe

3 - 20 USING THE COMBISCOPE INSTRUMENTS3.4.1.1 TriggeringAfter the measurement is initiated, the CombiScope instrument starts the realacquisition when

IV3.3 Measuring Signal Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 3-83.3.1 The MEASure? query . . . . . . . . . . . . . . . .

USING THE COMBISCOPE INSTRUMENTS 3 - 21Trigger SlopeThe TRIGger:SLOPe command allows you to define the trigger edge for all inputchannels, which can b

3 - 22 USING THE COMBISCOPE INSTRUMENTSDC COUPLING (0 Hz cutoff frequency):DC coupling causes the signal to be passed overthe full bandwidth (from 0 H

USING THE COMBISCOPE INSTRUMENTS 3 - 23LF-REJECT (30 KHz cutoff frequency):LF reject (HF passed) causes the signal to bepassed from the cutoff frequen

3 - 24 USING THE COMBISCOPE INSTRUMENTSThe video trigger mode can be programmed to field1, field2, or lines using theTRIGger:VIDeo:FIELd... commands.

USING THE COMBISCOPE INSTRUMENTS 3 - 253.4.1.3 The trigger modesA combination of the INITiate:CONTinuous and TRIGger:SOURce commandallows you to defin

3 - 26 USING THE COMBISCOPE INSTRUMENTSOnly in the single-shot and multiple-shot trigger mode (INITiate:CONTinuousOFF), the bits 3 (SWEeping) and 5 (W

USING THE COMBISCOPE INSTRUMENTS 3 - 273.4.1.4 Pre- and post-triggeringWhen pre-triggering is selected, the real trace acquisition begins before themo

3 - 28 USING THE COMBISCOPE INSTRUMENTS3.4.1.5 External triggeringExternal triggering is only possible for the PM33x0B CombiScope instruments.Channel

USING THE COMBISCOPE INSTRUMENTS 3 - 293.4.2 Reading trace acquisitionsOnce acquisitions are completed, the resulting traces ares placed in TRACememor

3 - 30 USING THE COMBISCOPE INSTRUMENTS3.4.2.1 Single-shot acquisitionPROGRAM EXAMPLE:In this example a single-shot trace acquisition is done via chan

V3.9 Post Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-453.9.1 How to do post processing . . . . . . . .

USING THE COMBISCOPE INSTRUMENTS 3 - 313.4.3 Conversion of trace dataThe trace data is sent as a block of binary codes. Trace samples can be formatted

3 - 32 USING THE COMBISCOPE INSTRUMENTS3.4.3.1 Conversion of 8-bit samples to integerAs an example a conversion of a trace of 512 "8-bit" sa

USING THE COMBISCOPE INSTRUMENTS 3 - 333.4.3.2 Conversion of 16-bit samples to integerAs an example a conversion of a trace of 512 "16-bit"

3 - 34 USING THE COMBISCOPE INSTRUMENTS3.4.3.3 Conversion to voltage valuesScreen positions correspond to voltage values. This relation is shown in th

USING THE COMBISCOPE INSTRUMENTS 3 - 35PROGRAM EXAMPLE:In this program example a trace of 512 samples from the actual signal at inputchannel 1 is read

3 - 36 USING THE COMBISCOPE INSTRUMENTS3.5 Averaging Acquisition DataAcquired traces and measured signal characteristics can be averaged over anumber

USING THE COMBISCOPE INSTRUMENTS 3 - 37The following diagram shows the possible states of the acquisition process when"averaging" is on, and

3 - 38 USING THE COMBISCOPE INSTRUMENTS3.6 Channel SelectionInput channels can be switched on or off by using the SENSe:FUNCtion[:ON] orSENSe:FUNCtion

USING THE COMBISCOPE INSTRUMENTS 3 - 393.7 Signal ConditioningThe INPut subsystem allows you to condition the input signals, such asAC/DC/GROund coupl

3 - 40 USING THE COMBISCOPE INSTRUMENTS3.7.2 Input filteringThe INPut:FILTer command allows you to turn the common low-pass filter(bandwidth limiter)

VI3.16 Saving/Restoring Instrument Setups . . . . . . . . . . . . . . . . . . . . . 3-783.16.1 How to restore initial settings . . . . . . . . . . . .

USING THE COMBISCOPE INSTRUMENTS 3 - 41Because the programmed PTPeak and OFFSet values directly affect the tracevalues, they can be used to calculate

3 - 42 USING THE COMBISCOPE INSTRUMENTS3.8 Time Base ControlIn the digital mode, the SENSe:SWEep:TIME:AUTO command allows you toenable autoranging of

USING THE COMBISCOPE INSTRUMENTS 3 - 43PROGRAM EXAMPLE:CALL Send(0, 8, "SENSe:SWEep:TIME?, 1) ’Requests sweep timeCALL Receive(0, 8, STIME$, 256)

3 - 44 USING THE COMBISCOPE INSTRUMENTS3.8.4 Autoranging time baseThe AUTO RANGE function of the Main Time Base (MTB) adjusts the time baseautomatical

USING THE COMBISCOPE INSTRUMENTS 3 - 453.9 Post Processing3.9.1 How to do post processingThe post processing functions CALCulate1 and CALCulate2 compl

3 - 46 USING THE COMBISCOPE INSTRUMENTS3.9.1.2 Specify the settings of the post processing function.When desired, specify the settings of the post pro

USING THE COMBISCOPE INSTRUMENTS 3 - 473.9.1.4 Check the result of the post processing function.The results of the post processing functions :MATH:TRA

3 - 48 USING THE COMBISCOPE INSTRUMENTS3.9.2 Mathematical calculationsMathematical calculations can be performed on 2 traces using theCALCulate1:MATH

USING THE COMBISCOPE INSTRUMENTS 3 - 49Scaling can be adjusted with the "CURSORS TRACK and delta" knobs via theMATHPLUS - PARAM menu option.

3 - 50 USING THE COMBISCOPE INSTRUMENTSTRACE POINT VALUES:FFT trace sample values, as entered with the TRACe:DATA? query, can beconverted to FFT point

VIIB CROSS REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1B.1 Cross Reference Front Panel Keys / Commands . . . . . . .

USING THE COMBISCOPE INSTRUMENTS 3 - 51Absolute FFT amplitudes are calculated from the true signal using the informationon the actual attenuator setti

3 - 52 USING THE COMBISCOPE INSTRUMENTSdBm - 50Ω offset calculation:From the Vrms offset value the dBm-50Ω offset value is calculated as follows:Examp

USING THE COMBISCOPE INSTRUMENTS 3 - 53SUMMARY OF CALCULATED OFFSET VALUES:Note: The PROGRAM EXAMPLE on the next page shows how it is programmed.TRACE

3 - 54 USING THE COMBISCOPE INSTRUMENTSPROGRAM EXAMPLE:The following program example converts a relative or absolute FFT trace of 512samples of 1 or 2

USING THE COMBISCOPE INSTRUMENTS 3 - 553.9.5 Histogram functionsThe HISTogram function calculates an amplitude distribution of the incoming trace.The

3 - 56 USING THE COMBISCOPE INSTRUMENTS3.10 Trace MemoryThe trace memory of the CombiScopes instruments consists of space for channelacquisition trace

USING THE COMBISCOPE INSTRUMENTS 3 - 57The following table shows the relation between the trace acquisition length(TRACe:POINts) and the available cha

3 - 58 USING THE COMBISCOPE INSTRUMENTS3.10.2 Copying traces to memoryThe TRACe:COPY command allows you to copy the contents of a memoryregister to an

USING THE COMBISCOPE INSTRUMENTS 3 - 593.10.3 Writing data to trace memoryThe TRACe command allows you to write data from the controller into a memory

3 - 60 USING THE COMBISCOPE INSTRUMENTS3.10.4 Reading data from trace memoryThe TRACe? query allows you to read the contents from one of the following

ABOUT THIS MANUAL 1 - 11 ABOUT THIS MANUALThe SCPI Programming Manual for the CombiScope instruments describeshow to program your CombiScope instrum

USING THE COMBISCOPE INSTRUMENTS 3 - 613.11 Screen/Display Functions3.11.1 Brightness controlThe DISPlay:BRIGhtness command allows you to control the

3 - 62 USING THE COMBISCOPE INSTRUMENTS3.11.2.1 Readout of measurement dataThe DISPlay:WINDow[1]:TEXT<n>:DATA? query allows you to acquiremeasur

USING THE COMBISCOPE INSTRUMENTS 3 - 63Example:Send → *RST ’Switches MEAS1 & 2 offSend → DISPlay:MENU MEASure ’Switches MEASURE menu onSend → SYST

3 - 64 USING THE COMBISCOPE INSTRUMENTSPROGRAM EXAMPLE:Read and print the DC and frequency characteristic of the actual signal using theMEAS1 and MEAS

USING THE COMBISCOPE INSTRUMENTS 3 - 653.11.2.2 Display of user-defined textThe DISPlay:WINDow2:TEXT commands allow you to define and clear the userte

3 - 66 USING THE COMBISCOPE INSTRUMENTS3.12 Print/Plot FunctionsThe HCOPy:DEVice <TYPE> command allows you to select a hardcopy device.The follo

USING THE COMBISCOPE INSTRUMENTS 3 - 67PROGRAM EXAMPLE:Select one of the supported GPIB plotters, set its address at 22 and connect theplotter via IEE

3 - 68 USING THE COMBISCOPE INSTRUMENTS3.13 Real-Time ClockThe real-time clock keeps track of the current date and time. The date and timeare stamped

USING THE COMBISCOPE INSTRUMENTS 3 - 69PROGRAM EXAMPLE:’*****’Calibrate the instrument and print the calibration result.’*****CALL Send (0, 8, "*

3 - 70 USING THE COMBISCOPE INSTRUMENTS3.15 Status ReportingStatus reporting is done via the status reporting system, which is completelydescribed in

1 - 2 ABOUT THIS MANUALAppendix A APPLICATION PROGRAM EXAMPLESAppendix A describes some application program examples. Theapplication programs are supp

USING THE COMBISCOPE INSTRUMENTS 3 - 713.15.1.1 Operation status dataBIT: MEANING:0CALibratingThis bit is set during the time that the instrument is p

3 - 72 USING THE COMBISCOPE INSTRUMENTS3.15.1.2 Questionable status dataBIT: MEANING:0VOLTageThis bit is set if a digital sample value is clipped at t

USING THE COMBISCOPE INSTRUMENTS 3 - 733.15.2 How to reset the status dataThe *CLS command allows you to clear the following status data structures:•A

3 - 74 USING THE COMBISCOPE INSTRUMENTS3.15.3 How to enable status reportingThe principle of using the status reporting mechanism is explained by show

USING THE COMBISCOPE INSTRUMENTS 3 - 753.15.3.2 Program example using a service request (SRQ)PROGRAM EXAMPLE:In this example the "Service Request

3 - 76 USING THE COMBISCOPE INSTRUMENTS3.15.4 How to report errorsInstrument errors usually caused by programming or setting errors, can bereported by

USING THE COMBISCOPE INSTRUMENTS 3 - 773.15.4.2 Error-reporting using the SRQ mechanismProgram an error-reporting routine and use the "Service Re

3 - 78 USING THE COMBISCOPE INSTRUMENTS3.16 Saving/Restoring Instrument SetupsThis level of programming involves all functions in the CombiScopes inst

USING THE COMBISCOPE INSTRUMENTS 3 - 793.17 Front Panel SimulationThe use of "front panel simulation" commands must be restricted to special

3 - 80 USING THE COMBISCOPE INSTRUMENTSPROGRAM EXAMPLE:CALL Send(0, 8, "*RST", 1) ’Resets the instrumentCALL Send(0, 8, "SYSTem:KEY 104