Agilent Technologies 66lxxA manual Idn?, Opc?

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*IDN?

Identification Query

Meaning and Type

Identification System Interface

Description

This query requests the power module to identify itself. It returns a string composed of four fields separated by commas.

Query Syntax	*IDN?
Returned Parameters	<AARD>
	Field	Information
	Agilent Technologies	Manufacturer
	xxxxxA	5-digit model number followed by a letter
	nnnnA-nnnnn	10-character serial number or 0
	<R>.xx.xx	Revision levels of firmware
Example	Agilent Technologies,66101A,0,A.00.01
Related Commands	(None)

*OPC

Meaning and Type

Operation Complete Device Status

Description

This command causes the interface to set the OPC bit (bit 0) of the Standard Event Status register when the power module has completed all pending operations. (see *ESE for the bit configuration of the Standard Event Status register.) Pending operations are complete when:

∙All commands sent before *OPC have been executed. This includes overlapped commands. Most commands are sequential and are completed before the next command is executed. Overlapped commands are executed in parallel with other commands. Commands that affect output voltage, current or state, relays, and trigger actions are overlapped with subsequent commands sent to the power module. The *OPC command provides notification that all overlapped commands have been completed.

∙Any change in the output level caused by previous commands has been completed (completion of settling time, relay bounce, etc.)

∙All triggered actions are completed.

*OPC does not prevent processing of subsequent commands but Bit 0 will not be set until all pending operations are completed.

Command Syntax	*OPC
Parameters	(None)
Related Commands	OPC? WAI

*OPC?

Meaning and Type

Operation Complete Device Status

Description

This query causes the interface to place an ASCII "1" in the Output Queue when all pending operations are completed. Pending operations are as defined for the *OPC command. Unlike *OPC, *OPC? prevents processing of all subsequent commands. *OPC? is intended to be used at the end of a command line so that the application program can then monitor the bus for data until it receives the "1" from the power module Output Queue.

26 Language Dictionary

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Contents Programming Guide Agilent Part No Microfiche Part No Update AprilSafety Guidelines Contents Abor Status Reporting Error Messages Synchronizing Power Module Output ChangesAbout This Guide IntroductionDocumentation Summary External ReferencesDownloading and Installing the Driver VXIplug&play Power Products Instrument DriversAccessing Online Help Supported ApplicationsIntroduction To Programming Gpib Capabilities Of The Power ModuleModule Gpib Address Introduction To ScpiRST *IDN? *SRE Voltlev 8.0 Prot 8.8 CURR? Volt LEV Prot CurrOutpprotdel Effect of Optional Headers Traversing the Command TreeOUTPUTPROTECTIONCLEARSTATUSOPERATIONCONDITION? Outputprotectionclear STATUSOPERATIONCONDITION?Voltagelevel 7PROTECTION 8CURRENTLEVEL 3MODE List Volttrig 7.5INIT*TRG Outp OFF*RCL 2OUTP onNumerical Data Formats Talking Formats SymbolListening Formats Suffixes and Multipliers Class Unit Unit with MultiplierAssign @PM3TO System ConsiderationsAgilent Basic Controllers Error HandlingUsing the National Instruments Gpib Interface Sending the Command Volt 5 in C Sending the Command Volt 5 in BasicReceiving Module Data with Basic Receiving Data from the ModuleReceiving Module Data with C Introduction Language DictionaryCLS Description Of Common CommandsMeaning and Type DescriptionESE Bit Configuration of Standard Event Status Enable RegisterESE ESR?OPC IDN?OPC? PSC OPT?RCL RCLRST SRE SAVSRE STB? Bit Configuration of Status Byte RegisterTRG TST? Description of Subsystem CommandsWAI AborCalauto Subsystem Tree Diagram Calibration SubsystemCalcurr Calauto 1 Calauto OnceCalcurrlev CalpassCalstat CalsaveCalvolt CalvoltlevCurr CalvoltprotCurr 500 MA Currlev CurrmodeCurrprotstat OFF CurrprotstatCurrtrig Currtrig 1200 MA CurrlevtrigListcoun Init Initcont 1 Initcont onListcoun Listcoun INF ListcurrListdwel LISTCURRPOIN?LISTDWELPOIN? ListstepListvolt 2.0,2.5,3.0 Listvolt MAX,2.5,MIN ListvoltLISTVOLTPOIN? MEASCURR? MEASVOLT?Outpprot Outp Outpstat ON,NORELAYOutprel Outpprotcle Outpprotdel 75E-1Outprelpol NormOutpttlt 1 Outpttlt OFF OutpttltOutpttltlink Outpttltsour LinkSTATOPEREVEN? STATOPER?STATOPERCOND? StatoperenabStatpres Stat Oper NTR 32 Stat Oper PTRSTATQUESEVEN? STATQUES?STATQUESCOND? Stat Ques COND?SYSTVERS? SYSTERR?Trigger Subsystem TrigTrigdel Trig Trig IMMTrigdel .25 Trigdel MAX TriglinkVoltlev VoltVoltmode Voltmode List Voltmode FIXVolttrig VOLTSENSSOUR?Volttrig 1200 MV Voltlevtrig Link Parameter List Power Module Programming ParametersStatus Register Bit Configuration Power Module Status StructureStatus Reporting Operation Status GroupStatus Questionable Commands Query Bit Signal Bit Configurations of Status Registers MeaningQuestionable Status Group Standard Event Status Group Power Module Status ModelOutput Queue Status Byte RegisterLocation Of Event Handles Examples Initial Conditions At Power OnStatquesptr 18ENAB Statoperptr 5376ENABSTATOPEREVEN?QUESEVEN? Statoperptr 1024NTR Statoperenab 1024*SRETrigger Subsystem Synchronizing Power Module Output ChangesModel of Fixed-Mode Trigger Operation Idle State Delaying StateInitiated State INITiateCONTinuous Command Model of List Mode Trigger OperationTrigger Status and Event Signals Output Change StateOutpttltsour List Subsystem Automatically Repeating a List Listvolt 3.0,3.25,3.5,3.75 Listdwel 10,10,25,40Listcurr 2,3,12,15 Triggering a ListTiming diagrams of Liststep Operation Scpi Command Completion DFI Discrete Fault Indicator SubsystemRI Remote Inhibit Subsystem Power Module Hardware Error Messages Error MessagesSystem Error Messages Standard Event Status Register Error Bits222 -223 -241 -310 -330 -350 -400 -410 -420 -430 Scpi Approved Commands Scpi Confirmed CommandsScpi Conformance Information Scpi VersionNon-SCPI Commands Application Programs Application 1. Sequencing Multiple Modules During Power Up Variations On This Implementation Figure B1-1. Block Diagram of Application #1Figure B1-2. Timing Diagram of Application #1 Enable Backplane TTL Trigger Drive Reset and Clear ModuleEnable Output Enable Response to TriggerImplementation Details How The MPS Implements The Solution MPS Set Up Figure B2-1. Block Diagram of Application #2 Enable TTL Trigger Drive When a CV-TO-CC Transition OccursEnable Response to TTL Trigger Start AT 15Application 3. Controlling Output Voltage Ramp Up at Turn On Figure B3-1. Simulating a Slow Voltage Ramp Generating the Desired Voltage Ramp for Application #3 Start Voltage for Ramp Option BaseStop Voltage for Ramp SecondsFigure B4-1. Voltage Waveform for Application #4 Application 4. Providing Time-Varying VoltagesModule set up Variations On This Implementation No Delay Before Protection Occurs Enable OCPEnable Detection of OC Condition Enables Detection on Positive TRANSITION, I.EApplication 5. Providing Time-Varying Current Limiting Figure B5-1. Typical DUT Current vs. Time Implementation Details How The MPS Implements The Sequence Current Limit Data GO to 12 V When TriggeredDwell Time Data SET to GET Current from ListNominal 12 Application 6. Output Sequencing Paced by the ComputerMPS Set Up Figure B6-1. Block Diagram of Application #6 Supply Limit Conditions These are the BiasTo be Tested Number of Bias Supply Limit C0MBINATIONSReturn Overview Of Application Advantages/Benefits Of The MPS Solution Figure B7-1. Block Diagram of Application #7 When IT Completes the LIST. OPC Generates SRO When the Module Indicates SIC Step CompletedEnable SRQ Interrupt Enable Intr Identify Handler SubroutineSupplemental Information CMD$ = Initiate ‘ Enable Trigger to Start List CMD$ = Output on ‘ Enable Output‘ Conversion to Send Real Numbers Over the BUS CMD$ = Voltmode List ‘ SET to GET Voltage from ListWaiting for Trigger BIT 5 of the Operation Status Register Call Iooutputs SLOTO, CMDS, LCONDITION.DATA = WendIf IBSTA% 0 then Goto ‘ AS Part of the Command String ‘ Disable Auto Serial Poll‘ Program N3.BAS ‘ INSTRUMENT.NAME$ = SlotoIf IBSTA% 0 then Goto Selected AS a Trigger Source ‘ General Error HandlerStop Dwell = ramptime Application #3 Controlling Voltage Ramp UP AT Turn onTo terminate the iooutputa Int error Char *badstring If error != EOl enabled for both read and write Strcatvlist, vpoint This is a generalized error checking routine Index IndexIndex Index Index United States Latin America Agilent Sales and Support OfficesManual Updates