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Agilent Technologies 668xA Programming Some Power Supply Functions continued, Remote Programming

Models: 668xA 669xA 667xA 664xA 665xA

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Programming Some Power Supply Functions (continued)

3030	WHILE C< >O
3035	D$=MID$(OUTPUT$,I,C-I)
3040	OUTPUT(X)=VAL(D$)	'Get values
3045	I=C+1
3050	C=INSTR(I,OUTPUT$,";")
3055	X=X+1
3060	WEND
3065	D$=RIGHT$(OUTPUT$,LEN(OUTPUT$)-(I-1))
3070	OUTPUT(X)=VAL(D$)
3076	OUTPUT$=SPACE$(40)	'Clear string
3080	RETURN
****************************************************************************************************
	Controller Using Agilent BASIC
*****************************************************************************************************
1000	!Power supply at stand-alone address = 706
1005	OPTION BASE 1
1010	DIM Codes$[80],Response$[80],Mode$[32]
1015	!
1020	!Program power supply to CV mode with following voltage and current
1026	OUTPUT 706;"VOLTAGE 7.8;CURRENT 480”
1030	!
1035	!Query power supply outputs and print to screen
1040	OUTPUT 706;"MEASURE:VOLTAGE?;CURRENT?"	!Query output levels
1045	ENTER 706;Vout, Iout
1050	PRINT "The output levels are ";Vout;" Volts and ";Iout" Amps"
1055	!
1060	!Program current triggered level to a value insufficient to maintain
1065	!supply within its CV operating characteristic
1070	OUTPUT 706;"CURR:TRIG 50"
1075	!
1080	!Set operation status mask to detect mode change from CV to CC
1085	OUTPUT 706;"STAT:OPER:ENAB 1280;PTR 1280"
1090	!
1095	!Enable Status Byte OPER summary bit
1100	OUTPUT 706;"*SRE 128"
1105	!
1110	!Arm trigger circuit and send trigger to power supply
1115	OUTPUT 706;"INITIATE;TRIGGER"
1130	!Poll for interrupt caused by change to CC mode and print to screen
1135	Response=SPOLL(706)
1140	IF NOT BIT (Response,7) THEN GOTO 1130	!No OPER event to report
1145	OUTPUT 706;"STAT:OPER:EVEN?"	!Query status operation register
1160	ENTER 706;Oevent	!Read back event bit
1156	IF BIT(Oevent,10) THEN PRINT "Supply switched to CC mode."
1160	!
1165	!Clear status
1170	OUTPUT 706;"*CLS"
1176	!
1180	!Disable output and save present state in location 2
1185	OUTPUT 706;"OUTPUT OFF;*SAV 2”
1190	END

24 Remote Programming

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Agilent Technologies 668xA, 665xA, 664xA, 667xA, 669xA Programming Some Power Supply Functions continued, Remote Programming

Contents

PROGRAMMING GUIDE GPIB DC POWER SUPPLIES Agilent Technologies Models 664xA, 665xA, 667xA, 668xA, and 669xAAgilent Part No Microfiche Part NoSafety Guidelines Printing HistoryContents GENERAL INFORMATIONREMOTE PROGRAMMING LANGUAGE DICTIONARYDescription of Subsystem Commands System CommandsCurrent Subsystem Display SubsystemERROR MESSAGES STATUS REPORTINGSCPI CONFORMANCE INFORMATION COMPATIBILITY LANGUAGEPage General Information About this GuideDocumentation Summary User’s GuidePrerequisites for Using this Guide VXIplug&play Power Product Instrument DriversDownloading and Installing the Driver Accessing Online HelpGPIB Capabilities Of The Power Supply Remote ProgrammingIntroduction To SCPI ConventionsTypes of SCPI Commands Common CommandsSubsystem Commands SCPI MessagesFigure 2-1. Command Message Structure Parts of a SCPI MessageMessage Component ExampleTraversing the Command Tree Query IndicatorMessage Unit Separator Root SpecifierFigure 2-2. Partial Command Tree Active Header Path The Effect of Optional HeadersMoving Among Subsystems OUTPUTPROTECTIONCLEAR STATUSOPERATIONCONDITION?Including Common Commands SymbolSCPI Queries Value CouplingExamples controlled GPIB interfacesListening Formats Table 2-2. Suffixes and MultipliersDisable the output Enable the outputControlling the Output Programming Voltage and CurrentSaving and Recalling States Writing to the DisplayProgramming Status System Considerations Programming the Digital I/O PortThe GPIB Address A stand-alone primary address and a direct primary address A direct primary address and a secondary addressAssigning the GPIB Address In Programs Error Handling DOS DriversAgilent BASIC Controllers Sample Program CodeProgramming Some Power Supply Functions Controller Using Agilent 82335A Interface‘ --------------- Merge SETUP.BAS here Programming Some Power Supply Functions continued 22 Remote ProgrammingProgramming Some Power Supply Functions continued SPOL%=OIF SPOL% AND 128 = 128 THEN POLL = 1 Set interrupt flag on OPER bit FOR I=1 TOProgramming Some Power Supply Functions continued 24 Remote ProgrammingRelated Commands Common CommandsSubsystem Commands Language DictionaryDescription Of Common Commands Figure 3-1. Common Commands Syntax DiagramBit Configuration of Standard Event Status Enable Register Meaning and TypeDescription 0 toRelated Commands ESR?IDN? Query SyntaxPower-on Status Clear Device Initialization OPC?OPT? PSC 0 *PSCMeaning and Type DescriptionMeaning and Type DescriptionMeaning and Type DescriptionBit Configuration of Status Byte Register STB?Meaning and Type DescriptionTST? Meaning and TypeDescription Meaning and TypeDescription of Subsystem Commands Calibration CommandsFigure 3-2. Subsystem Commands Tree Diagram ABORCurrent Subsystem CURR CURRTRIGCURRPROTSTAT CURRENTLEVEL 200 MADigital I/O Port Programming Chart Pin Configuration1Configuration Display SubsystemDISPTEXT DEFAULTMODE DISPMODEDISPTEXT DISPMODE NORMInitiate Subsystem Measure SubsystemINIT INITCONT MEASCURR? MEASVOLT?OUTPUTPROTECTIONDELAY 75E-1 OUTPUTPROTDELAY MAXOutput Subsystem OUTPOUTPREL OUTPRELPOLOUTPREL 1 OUTPREL OFF OUTPRELPOL NORMBit Configuration of Operation Registers Bit WeightStatus Subsystem STATPRESSTATUSOPERATIONENABLE? STATOPERENABSTATOPER NTR STATOPER PTR Bit Configuration of Questionable Registers Status Questionable RegistersSTATQUES? STATQUESCOND?System Commands STATQUES NTR STATQUES PTRSYSTERR? corresponding Questionable Event registerTrigger Subsystem SYSTLANGSYSTVERS? TRIGVoltage Subsystem TRIGSOURVOLT VOLTTRIG VOLTAGELEVEL 200 MVCommand Summary Command SummaryCommand VOLTPROTCommand Parameters Command SummaryCommand Subsystem CommandsCharacteristics in the Operating Guide Table 3-1. Power Supply Programming Parameters see noteProgramming Parameters ParameterPage Power Supply Status Structure Register CommandsTable 4-1. Status Operation Commands Status ReportingTable 4-2. Bit Configurations of Status Registers SignalFigure 4-1. Power Supply Status Model MeaningTable 4-3. Status Questionable Commands Questionable Status GroupStandard Event Status Group CLS *ESR?Service Request Enable Register Initial Conditions At Power OnDetermining the Cause of a Service Interrupt Status Byte RegisterThe PON Power-On Bit Servicing an Operation Status Mode Eventinformation about encoding the commands as language strings Table 4-4. Default Power On Register StatesMonitoring Both Phases of a Status Transition Adding More Operation EventsServicing Questionable Status Events Table 4-5. Generating RQS from the CC EventSCPI Command Completion DFI Discrete Fault IndicatorRI Remote Inhibit Techniques in ANSI/IEEE StdPage Error Messages Power Supply Hardware Error MessagesCalibration Error Messages System Error MessagesTable 6-1. Summary of System Error Messages continued ErrorError String Description/Explanation/Examples 60 Error MessagesSCPI Confirmed Commands1 SCPI Approved CommandsSCPI Conformance Information SCPI VersionNON-SCPI Commands1 Compatibility Language Table B-1. ARPS Commands ARPS Command1Similar SCPI CommandTable B-1. ARPS Commands continued ARPS Command1Command DescriptionTable B-1. ARPS Commands continued ARPS Command1Command DescriptionIndex 68 Index Page Agilent Sales and Support Office United StatesLatin America Canada