Agilent Technologies 6634B manual Output Voltage, Output Current, Maximum Voltage, Maximum Current

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3 - Programming the DC Source

Output Voltage

The output voltage is controlled with the VOLTage command. For example, to set the output voltage to 25 volts, use:

VOLTage 125

The dc source can be programmed to turn off its output if the output voltage exceeds a preset peak voltage limit. This protection feature is implemented with the VOLTage:PROTection command as explained in chapter 4.

Maximum Voltage

The maximum rms output voltage that can be programmed can be queried with:

VOLTage? MAX

Output Current

All models have a programmable current function. The command to program the current is:

CURRent <n>

where <n> is the current limit in amperes.

If the load attempts to draw more current than the programmed limit, the output voltage is reduced to keep the current within the limit.

Maximum Current

The maximum output current that can be programmed can be queried with:

CURRent? MAX

Overcurrent Protection

The dc source can also be programmed to turn off its output if the current limit is reached. As explained in chapter 4, this protection feature is implemented the following command:

CURRent:PROTection:STATe ON OFF

NOTE: Use OUTP:PROT:DEL to prevent momentary current limit conditions caused by programmed output changes from tripping the overcurrent protection.

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Contents Programming Guide Safety Guidelines Printing HistoryTable of Contents Language Dictionary Internally Triggered MeasurementsOutput Commands Error Messages Scpi Conformance InformationCompatibility Language Example ProgramsAbout this Guide Documentation SummaryScpi References External ReferencesGpib References VXIplug&play Power Products Instrument Drivers Downloading and Installing the DriverSupported Applications System RequirementsAccessing Online Help Gpib Capabilities of the DC SourceRS-232 Capabilities of the DC Source Gpib AddressBaud Rate RS-232 Flow ControlRS-232 Programming Example RS-232 Troubleshooting Introduction to ScpiConventions Used in This Guide Boldface fontTypes of Scpi Commands Multiple Commands in a MessageIncluding Common Commands Using QueriesTypes of Scpi Messages Moving Among SubsystemsQuery Indicator Message UnitHeaders Message Unit SeparatorScpi Data Formats Numerical Data FormatsSuffixes and Multipliers Response Data TypesScpi Command Completion Using Device ClearPage Power-on Initialization IntroductionProgramming the Output Enabling the OutputOutput Voltage Output CurrentMaximum Voltage Maximum CurrentSetting the Voltage or Current Trigger Levels Triggering Output ChangesScpi Triggering Nomenclature Output Trigger System ModelInitiating the Output Trigger System Generating TriggersDC Measurements Making MeasurementsVoltage and Current Measurements RMS Measurements Agilent 66312A, 66332A Only Current RangesSequence Form Alias SEQuence2 ACQuire Internally Triggered MeasurementsMeasurement Trigger System Model Generating Measurement Triggers Agilent 66312A, 66332A Only BUSTrigger Commands Used to Measure Output Pulses Pulse Measurement Queries Measuring Output Pulses Agilent 66312A, 66332A OnlyCurrent Detector Multiple Measurements Agilent 66312A, 66332A Only Controlling Measurement SamplesVarying the Voltage or Current Sampling Rate Pulse Measurement Example Agilent 66312A, 66332A only Pre-event and Post-event TriggeringOption Base Power-On Conditions Programming the Status RegistersOperation Status Group Status Byte Register Questionable Status GroupStandard Event Status Group Determining the Cause of a Service Interrupt Servicing Operation Status and Questionable Status EventsMSS Bit RQS BitInhibit/Fault Indicator Monitoring Both Phases of a Status TransitionDiscrete Fault Indicator DFI Remote Inhibit RIUsing the Inhibit/Fault Port as a Digital I/O Bit WeightDFI Programming Example PinPage Subsystem Commands Language DictionarySubsystem Commands Syntax DFI ALCSubsystem Commands Syntax Common Commands Common Commands SyntaxProgramming Parameters Output Programming ParametersCalibration Commands CALibrateCURRentCALibrateCURRentNEGative CALibrateCURRentMEASureLOWRangeCALibratePASSword Command Syntax CALibrateSAVE Parameters None ExamplesCALibrateDATA CALibrateLEVelCALibrateSTATe CALibrateVOLTageCALibrateVOLTagePROTection Query Syntax CALibrateSTATe?Measurement Commands MEASureARRayCURRent? FETChARRayCURRent?MEASureARRayVOLTage? FETChARRayVOLTage? Query SyntaxMEASureCURRent? FETChCURRent? MEASureCURRentACDC? FETChCURRentACDC?MEASureCURRentHIGH? FETChCURRentHIGH? FETChCURRent? applies to Agilent 66312A, 66332A OnlyMEASureCURRentMINimum? FETChCURRentMINimum? MEASureCURRentLOW? FETChCURRentLOW?MEASureCURRentMAXimum? FETChCURRent MAXimum? MEASureVOLTage? FETChVOLTage? MEASureVOLTageACDC? FETChVOLTageACDC?MEASureVOLTageHIGH? FETChVOLTageHIGH? FETChVOLTage? applies to Agilent 66312A, 66332A OnlyMEASureVOLTageMINimum? FETChVOLTageMINimum? MEASureVOLTageLOW? FETChVOLTageLOW?MEASureVOLTageMAXimum? FETChVOLTageMAXimum? SENSeCURRentRANGe SENSeCURRentDETectorUnit a amperes *RST Value MAX high range Returned Parameters NR3SENSeFUNCtion SENSeSWEepOFFSetPOINtsSENSeSWEepPOINts SENSeSWEepTINTervalSENSeWINDow HANNingRECTangular Returned Parameters CRDOutput Commands OUTPutOUTPutDFI OUTPutDFISOURceOUTPutPROTectionCLEar OUTPutPROTectionDELayOUTPutPONSTATe OUTPutRELay OUTPutRELayPOLarityOUTPutRIMODE Query Syntax OUTPputRELayPOLarity?Default Suffix SOURceCURRentSOURceCURRentTRIGger SOURceCURRentPROTectionSTATeSOURceDIGitalDATA SOURceDIGitalFUNCtionSOURceVOLTage Query Syntax SOURceDIGitalDATA?SOURceVOLTageALCBANDwidth? SOURceVOLTageALCBWIDth? SOURceVOLTageTRIGgerSOURceVOLTagePROTection Agilent 66332A, 6631B, 6632B, 6633B and 6634B OnlyStatus Commands STATusPRESetSTATusOPERation? STATusOPERationCONDition?STATusOPERationENABle Query Syntax STATusOPERationENABle?Parameters Preset Value STATusOPERationNTR STATusOPERationPTRSTATusQUEStionableCONDition? STATusQUEStionableENABleSTATusQUEStionable? Command Syntax *CLS Parameters None STATusQUEStionableNTR STATusQUEStionablePTRCLS STATQUESNTR?STATQUESPTR?Bit Configuration of Standard Event Status Enable Register ESEESR? OPCPSC SREPSC on ExampleBit Configuration of Status Byte Register STB?WAI NR1 register binary valueSystem Commands DISPlayDISPlayMODE DISPlayTEXTSYSTemERRor? SYSTemLANGuageSYSTemVERSion? Parameters none Returned Parameters NR2SYSTemLOCal SYSTemREMoteSYSTemRWLock IDN?Command Syntax RCL NRf Parameters Example OPT?RCL RSTRST Settings Command Syntax SAV NRf Parameters ExampleSAV TST?Trigger Commands ABORtINITiateSEQuence INITiateNAME INITiateCONTinuousSEQuence1 INITiateCONTinuousNAMETRIGger TRIGgerSOURceTRIGgerSEQuence2 TRIGgerACQuire Abor Currtrig Init *TRG VolttrigTRIGgerSEQuence2COUNtCURRent TRIGgerACQuireCOUNtCURRent TRIGgerSEQuence2COUNtVOLTage TRIGgerACQuireCOUNtVOLTageParameters RST Value Examples TRIGSEQ2COUNCURR 5 TrigacqcouncurrTRIGSEQ2HYSTVOLT TRIGSEQ2LEVCURR TRIGSEQ2HYSTCURR TRIGSEQ2LEVVOLTTRIGgerSEQuence2LEVelCURRent TRIGgerACQuireLEVelCURRent TRIGgerSEQuence2LEVelVOLTage TRIGgerACQuireLEVelVOLTageTRIGSEQ2LEVVOLT TRIGSEQ2HYSTCURR TRIGSEQ2LEVCURR TRIGSEQ2HYSTVOLTTRIGSEQ2SLOPVOLT TRIGgerSEQuence2SLOPeCURRent TRIGgerACQuireSLOPeCURRentTRIGgerSEQuence2SLOPeVOLTage TRIGgerACQuireSLOPeVOLTage Parameters None Related Commands TRIGgerSEQuence2SOURce TRIGgerACQuireSOURceTRIGgerSEQuence1DEFine TRIGgerSEQuence2DEFine TRGPage Scpi Version Scpi Confirmed CommandsNon-SCPI Commands Page Table B-1. COMPatibility Power-on Settings Command Command SettingTable B-2. COMPatibility Commands Compatibility ERR? FAULT? ID? IOUT?Similar Scpi Command ASTS? CLRCompatibility Command Table B-2. COMPatibility Commands Description Similar ScpiTable B-2. COMPatibility Commands Compatibility Description CommandThese commands determine the conditions that will set bits ErrorFAU Norm Fast INH ERR UNR +CCRQS ERR RDY Page Error Number List Bit Set Error Number Error Code Error TypeTable C-1. Error Numbers Error Number Page Assigning the Gpib Address in Programs Types of DOS DriversAgilent 82335A Driver National Instruments Gpib DriverError Handling Basic ControllersExample Programs D Example 2. IBM Controller Using National Interface Call IBCLRPS%CODES$=*CLS Example 3. Controller Using Basic Option BaseIndex Index 100101 Scpi102 Manual Updates
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