Agilent Technologies 664xA, 665xA, 667xA, 669xA, 668xA manual Controlling the Output

Page 16

Controlling the Output

Important The power supply responds simultaneously to both digital and analog programming inputs. If it is receiving an input over the GPIB and a corresponding input from the front panel (and/or from the analog programming port), the power supply output will be the algebraic sum of the inputs.

Programming Voltage and Current

The following statements program both voltage and current and return the actual output from the sense terminals:

OUTP OFF

Disable the output.

VOLT 4.5;CURR 255

Program the voltage and current.

VOLT?;CURR?

Read back the programmed levels.

OUTP ON

Enable the output.

MEAS:VOLT?;MEAS:CURR?

Read back the outputs from the sense terminals.

Programming Protection Circuits

This example programs the voltage and current, programs an overvoltage protection value, and turns on the overcurrent protection. It then reads back all the programmed values.

VOLT:LEV 4.5;PROT 4.75

Program the voltage and overvoltage protection.

CURR:LEV 255;PROT:STAT ON

Program the current and overcurrent protection.

VOLT:LEV?;PROT?;:CURR:LEV?;PROT:STAT?

Read back the programmed values.

Note the required use of the optional LEVel header in the above example (see "The Effect of Optional Headers", given previously).

Changing Outputs by Trigger

If you do not program pending triggered levels, they default to the programmed (immediate) output levels. The following statements shows some basic trigger commands.

OUTP OFF

Disable the output.

VOLT:LEV:IMM 2.2;TRIG 2.5

Program the (immediate) voltage level to 2.2V and the pending

CURR:LEV:IMM I5O;TRIG 250

triggered level to 2.5 V.

Program the (immediate) current level to 150 A and the pending

VOLT:LEV:IMM?;TRIG?;:CURR:LEV:IMM?;TRIG?

triggered level to 250 A.

Check all the programmed values.

OUTP ON

Enable the output.

MEAS:VOLT?;CURR?

Read back the immediate levels from the sense terminals.

INTIT;TRIG

Arm the trigger circuit and send a single trigger.

INIT;*TRG

Same as above, except using a common command.

MEAS:VOLT?;CURR?

Read back the triggered levels from the sense terminals.

If you need to send two or more triggers, program the trigger circuit for continuous arming.

OUTP OFF

Disable the output.

VOLT:LEV:IMM 5.O;TRIG 2.5

Program the (immediate) voltage level to 5 V and the pending

INTIT:CONT ON

triggered level to 2.5 V.

Program the trigger circuit for continuous arming.

OUTP ON

Enable the output to 5 V.

TRIG

Trigger the output voltage to 2.5 V.

VOLT:TRIG 5;:TRIG

Set the pending trigger level to 5 V and trigger the output voltage

INTIT:CONT OFF

back to 5 V.

Remove the continuous trigger arming.

16 Remote Programming

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Contents Programming Guide Gpib DC Power Supplies Agilent Part No Microfiche Part No JulySafety Guidelines Printing HistoryContents Description of Subsystem Commands System CommandsCurrent Subsystem Display SubsystemCommand Summary Programming Parameters Power Supply Status Structure Operation Status GroupVoltage Subsystem Questionable Status GroupPage 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 Scpi MessagesStructure of a Scpi Message Voltlev 4.5PROT 4.8CURR?NLVolt LEV Prot Curr Parts of a Scpi MessageVoltlev 4.5 Prot 4.8 CURR? Traversing the Command Tree Query IndicatorMessage Unit Separator Root SpecifierEffect of Optional Headers Moving Among SubsystemsOutputprotectionclear STATUSOPERATIONCONDITION? OUTPUTPROTECTIONCLEARSTATUSOPERATIONCONDITION?Including Common Commands Scpi QueriesValue Coupling Scpi Data FormatsExamples Controlling the Output Writing to the Display Saving and Recalling StatesProgramming Status System Considerations Programming the Digital I/O PortGpib Address DigdataAction Display Shows Assigning the Gpib Address In ProgramsError Handling DOS DriversAgilent Basic Controllers Sample Program CodeProgramming Some Power Supply Functions Iout = OUTPUTS2Call Ioenter PS,OEVENT SPOL%=O While C O Language Dictionary IntroductionDescription Of Common Commands Common Commands Syntax DiagramCLS ESEIDN? ESR?OPC OPC? OPT?PSC PSC 0 *PSCCommand Syntax RCL NRf Parameters Example Query Syntax None Related CommandsRCL PSC *RST *SAVSAV RSTSAV Bit Configuration of Status Byte Register SRESTB? SRETST? TRGWAI Description of Subsystem Commands Calibration CommandsAbor AborCurr Currtrig Current SubsystemCurrprotstat Display Subsystem DigdataDisp Digdata 7 DigitaldatavalueDisptext Defaultmode DispmodeDisptext Dispmode Norm Displaymode Normal Displaywindowmode TextInitiate Subsystem Measure SubsystemInit Initcont MEASCURR? MEASVOLT?Outp Output SubsystemOutpprotcle Outpprotdel Outprel OutprelpolOutprel 1 Outprel OFF Outprelpol NormStatus Subsystem StatpresStatus Operation Registers STATOPER?STATUSOPERATIONENABLE? StatoperenabStatoper NTR Statoper PTR Statoperenab 1312 StatoperenabStatus Questionable Registers STATQUES?STATQUESCOND? StatquesenabSystem Commands SYSTERR? SYSTEMERROR?Statques NTR Statques PTR SYSTERR?Trigger Subsystem SystlangSYSTVERS? TrigVoltage Subsystem TrigsourVolt Volttrig Trigsour BUS Triggersource BUSCommand Summary Command SummaryCommand Parameters Subsystem Commands VoltprotCommand Parameters Common Commands ParametersProgramming Parameters Currlevtrig MAXVoltlevtrig MAX Voltprot MAXPage Power Supply Status Structure Register CommandsStatus Reporting Operation Status GroupCAL WTGUNR OPCStatus Questionable Commands Register Query Cleared By Questionable Status GroupStandard Event Status Group STATQUESNTR?Service Request Enable Register Initial Conditions At Power OnStatus Byte Register Output QueuePON Power-On Bit Servicing an Operation Status Mode EventDefault Power On Register States Condition Caused By StatpreAdding More Operation Events Monitoring Both Phases of a Status TransitionServicing Questionable Status Events Scpi Command Completion DFI Discrete Fault IndicatorRI Remote Inhibit WAIPage Error Messages Power Supply Hardware Error MessagesCalibration Error Messages System Error MessagesSummary of System Error Messages Error Error String Description/Explanation/Examples NumberScpi Confirmed Commands1 Scpi Approved CommandsScpi Conformance Information Scpi VersionNON-SCPI Commands1 Parallel Polling Compatibility LanguageCompatibility Language Volt CurrVSET? ISET? CURR? VOUT?Hold OFF VolttrigHold CurrtrigFAULT? UNMASK?SRQ OFF SRQIndex IndexOperation status group, 51 optional header Trig SOUR, 46 VOLT, 46 Volt PROT, 47 Volt Trig United States Latin America Canada Australia/New ZealandEurope Asia Pacific Japan
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668xA, 669xA, 667xA, 664xA, 665xA specifications

Agilent Technologies has long been a pioneer in the production of high-performance electronic test and measurement instruments, particularly in the field of power sources. Among its notable offerings are the Agilent 667xA, 669xA, 665xA, 664xA, and 668xA series of power supplies. These instruments are designed to provide stable, reliable power for a variety of applications, including electronic testing, industrial processes, and research laboratories.

The Agilent 667xA series is characterized by its programmability and advanced measurement functions. These power supplies support a wide range of output voltages and currents, allowing for flexible configurations that cater to different testing needs. The built-in measurement capabilities enable users to monitor the voltage, current, and power with high precision, which is essential for ensuring optimal performance in electronic applications.

The Agilent 669xA series stands out with its high-power outputs, making it suitable for demanding applications. These power supplies deliver high voltage and current levels, making them ideal for testing high-performance devices, such as power amplifiers and motor drives. Additionally, the 669xA series includes features such as overvoltage protection and complex output sequencing to enhance the safety and reliability of the testing process.

The Agilent 665xA and 664xA series focus on delivering high accuracy and excellent regulation. These models are particularly known for their low noise operation, which is critical for sensitive applications where precision is paramount. The integrated programming capabilities allow users to automate testing sequences, thus improving efficiency in research and development settings.

The 668xA series features advanced digital signal processing that enhances the precision and stability of the output. Users benefit from features like remote sensing and monitoring, allowing feedback adjustments that maintain output accuracy despite cable losses. Furthermore, the 668xA models can integrate seamlessly with various test environments thanks to their LAN, GPIB, and USB connectivity options.

Overall, the Agilent 667xA, 669xA, 665xA, 664xA, and 668xA power supplies provide a comprehensive range of solutions for diverse electronic testing needs. With their advanced features, superb measurement capabilities, and robust performance, these instruments empower engineers and researchers to conduct their work with confidence, precision, and efficiency.
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