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

Models: 6632B 6633B 66332A 6634B

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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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Agilent Technologies 6634B, 6633B Output Voltage, Output Current, Maximum Voltage, Maximum Current, Overcurrent Protection

Contents

System DC Power Supply Programming GuideDynamic Measurement DC Source Agilent Models 66312A, 66332ASafety Guidelines Printing HistoryTable of Contents 1 - GENERAL INFORMATION2 - INTRODUCTION TO PROGRAMMING 3 - PROGRAMMING THE DC SOURCE4 - LANGUAGE DICTIONARY Output Commands Status CommandsC - ERROR MESSAGES A - SCPI CONFORMANCE INFORMATIONB - COMPATIBILITY LANGUAGE D - EXAMPLE PROGRAMSDocumentation Summary General InformationAbout this Guide SCPI References External ReferencesGPIB References VXIplug&play Power Products Instrument Drivers Downloading and Installing the DriverIntroduction to Programming Supported ApplicationsAccessing Online Help GPIB Capabilities of the DC SourceRS-232Capabilities of the DC Source GPIB AddressBaud Rate RS-232Flow ControlRS-232Programming Example Conventions Used in This Guide RS-232TroubleshootingIntroduction to SCPI Types of SCPI Commands Multiple Commands in a MessageIncluding Common Commands Using QueriesTypes of SCPI Messages Moving Among SubsystemsQuery Indicator The Message UnitHeaders Message Unit SeparatorSCPI Data Formats Numerical Data FormatsSuffixes and Multipliers Response Data TypesSCPI Command Completion Using Device ClearPage Power-onInitialization Programming the DC SourceIntroduction Programming 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 TriggersMaking Measurements Voltage and Current MeasurementsRMS Measurements Agilent 66312A, 66332A Only Current RangesSCPI Triggering Nomenclature Internally Triggered MeasurementsMeasurement Trigger System Model 3 - Programming the DC Source Page Current Detector Pulse Measurement QueriesMultiple Measurements Agilent 66312A, 66332A Only Controlling Measurement SamplesVarying the Voltage or Current Sampling Rate Figure 3-6. Pre-eventand Post-eventTriggering Programming the DC Source RQS ,**$ Power-OnConditionsProgramming the Status Registers Operation Status Group Table 3-1.Bit Configurations of Status RegistersSignal CommandQuestionable Status Group Standard Event Status GroupStatus Byte Register CommandDetermining the Cause of a Service Interrupt The MSS BitThe RQS Bit The MAV Bit and Output QueueInhibit/Fault Indicator Monitoring Both Phases of a Status TransitionDiscrete Fault Indicator DFI Remote Inhibit RIUsing the Inhibit/Fault Port as a Digital I/O DFI Programming ExampleFAULT/INHIBIT Bit WeightPage Introduction Subsystem CommandsLanguage Dictionary Table 4-1.Subsystem Commands Syntax Table 4-1.Subsystem Commands Syntax continued Table 4-1.Subsystem Commands Syntax continued Common Commands Programming ParametersTable 4-2.Common Commands Syntax Table 4-3.Output Programming ParametersCalibration Commands CALibrate CURRentCALibrate CURRent NEGative CALibrate CURRent MEASure LOWRangeCALibrate PASSword CALibrate DATACALibrate LEVel CALibrate SAVECALibrate STATe CALibrate VOLTageCALibrate VOLTage PROTection CAL STAT 1,6812 CAL STAT OFFMEASure ARRay VOLTage? FETCh ARRay VOLTage? Measurement CommandsMEASure ARRay CURRent? FETCh ARRay CURRent? MEASure CURRent HIGH? FETCh CURRent HIGH? MEASure CURRent? FETCh CURRent?MEASure CURRent ACDC? FETCh CURRent ACDC? MEASure CURRent MINimum? FETCh CURRent MINimum? MEASure CURRent LOW? FETCh CURRent LOW?MEASure CURRent MAXimum? FETCh CURRent MAXimum? MEASure VOLTage HIGH? FETCh VOLTage HIGH? MEASure VOLTage? FETCh VOLTage?MEASure VOLTage ACDC? FETCh VOLTage ACDC? MEASure VOLTage MINimum? FETCh VOLTage MINimum? MEASure VOLTage LOW? FETCh VOLTage LOW?MEASure VOLTage MAXimum? FETCh VOLTage MAXimum? SENS CURR DET ACDC SENSe CURRent RANGeSENSe CURRent DETector SENSe FUNCtion SENSe SWEep OFFSet POINtsSENSe:SWEep:POINts SENSe SWEep TINTervalSENSe WINDow HANNingRECTangular Returned Parameters CRDOutput Commands OUTPutOUTPut DFI OUTPut DFI SOURceOUTPut PROTection DELay OUTPut PON STATeOUTPut PROTection CLEar OUTP PON STAT RSTOUTPut RELay OUTPut RELay POLarityOUTPut RI MODE OUTP REL POL NORMSOURce CURRent SOURce CURRent TRIGgerSOURce CURRent PROTection STATe CURR PROT STAT 1CURRENT PROTECTION STATE ONSOURce DIGital DATA SOURce DIGital FUNCtionSOURce VOLTage DIG DATASOURce VOLTage ALC BANDwidth? SOURce VOLTage ALC BWIDth?SOURce VOLTage TRIGger SOURce VOLTage PROTectionStatus Commands STATus PRESetSTATus OPERation? STATus OPERation CONDition?STATus OPERation NTR STATus OPERation PTR STATus OPERation ENABleSTATUS OPERATION ENABLE? STATus QUEStionable ENABle STATus QUEStionable?STATus QUEStionable CONDition? STAT QUES COND? STATUS QUESTIONABLE CONDITION?STATus QUEStionable NTR STATus QUEStionable PTR Command SyntaxPreset Value Related CommandsESR? Command Syntax Parameters Power-OnValue ExamplesQuery Syntax Returned Parameters Related Commands Related CommandsPage STB? System Commands DISP TEXT DEFAULT MODEDISPlay DISPlay MODESYSTem ERRor? SYSTem LANGuageSYSTem VERSion? Query Syntax SYSTem ERRor? Parameters NoneSYSTem LOCal SYSTem:REMoteSYSTem RWLock IDN?OPT? TST? Trigger Commands ABORtINITiate SEQuence INITiate NAME INITiate CONTinuous SEQuence1TRIGger SEQuence2 TRIGger ACQuire TRIGgerTRIGger SOURce TRIGger SEQuence2 COUNt CURRent TRIGger ACQuire COUNt CURRentTRIGger SEQuence2 COUNt VOLTage TRIGger ACQuire COUNt VOLTageTRIGger SEQuence2 HYSTeresis CURRent TRIGger ACQuire HYSTeresis CURRentTRIGger SEQuence2 HYSTeresis VOLTage TRIGger ACQuire HYSTeresis VOLTageTRIGger SEQuence2 LEVel CURRent TRIGger ACQuire LEVel CURRentTRIGger SEQuence2 LEVel VOLTage TRIGger ACQuire LEVel VOLTageTRIGger SEQuence2 SLOPe CURRent TRIGger ACQuire SLOPe CURRentTRIGger SEQuence2 SLOPe VOLTage TRIGger ACQuire SLOPe VOLTageTRIGger SEQuence2 SOURce TRIGger ACQuire SOURce TRIGger SEQuence1 DEFine TRIGger SEQuence2 DEFinePage SCPI Confirmed Commands Non-SCPICommandsSCPI Conformance Information SCPI VersionPage Compatibility Language IntroductionTable B-2.COMPatibility Commands Compatibility CommandSimilar SCPI Command DescriptionCompatibility Command Table B-2.COMPatibility Commands continuedCommand DescriptionTable B-2.COMPatibility Commands continued Figure B-1.COMpatibility Status Model Page Error Messages Error Number ListError String Description/Explanation/Examples Table C-1.Error Numbers continuedError Number Error String Description/Explanation/Examples Error NumberTable C-1.Error Numbers continued Page Example Programs Assigning the GPIB Address in ProgramsTypes of DOS Drivers IntroductionError Handling BASIC ControllersExample Programs - D 990’----------------------Merge DECL.BAS here 1225 Example 3. Controller Using BASIC INDEX Index Page varying voltage or current sampling, 29 voltage maximum, 20 measurementswaiting for measurement results XON-XOFF,11Manual Updates 11/9/991/4/00 All references to HP have been changed to Agilent