Agilent Technologies 667xA, 665xA, 664xA Prerequisites for Using this Guide, Accessing Online Help

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Prerequisites for Using this Guide

Prerequisites for Using this Guide

This organization of this guide assumes that you know or can learn the following information:

1.How to program in your controller language (Agilent BASIC, QUICKBASIC, C, etc.).

2.The basics of the GPIB (IEEE 488).

3.How to program I/O statements for an IEEE 488 bus instrument. From a programming aspect, the power supply is simply a bus instrument.

4.How to format ASCII statements within you I/O programming statements. SCPI commands are nothing more than ASCII data strings incorporated within those I/O statements.

5.The basic operating principles of the power supply as explained in “Chapter 5 – Front Panel Operation” of the Operating Guide.

6.How to set the GPIB address of the power supply. This cannot be done remotely, but only from the supply’s front panel (see System Considerations in “Chapter 2 – Remote Programming”).

VXIplug&play Power Product Instrument Drivers

VXIplug&play instrument drivers for Microsoft Windows 95 and Windows NT are now available on the Web at http://www.agilent.com/find/drivers. These instrument drivers provide a high-level programming interface to your Agilent Technologies instrument. VXIplug&play instrument drivers are an alternative to programming your instrument with SCPI command strings. Because the instrument driver's function calls work together on top of the VISA I/O library, a single instrument driver can be used with multiple application environments.

Supported Applications

System Requirements

a

Agilent VEE

The VXIplug&play Power Products instrument driver

a

Microsoft Visual BASIC

complies with the following:

a

Microsoft Visual C/C++

a

Microsoft Windows 95

a

Borland C/C++

a

Microsoft Windows NT

a

National Instruments LabVIEW

a

HP VISA revision F.01.02

a

National Instruments LabWindows/CVI

a

National Instruments VISA 1.1

Downloading and Installing the Driver

NOTE: Before installing the VXIplug&play instrument driver, make sure that you have one of the supported applications installed and running on your computer.

1.Access Agilent Technologies' Web site at http://www.agilent.com/find/drivers.

2.Select the instrument for which you need the driver.

3.Click on the driver, either Windows 95 or Windows NT, and download the executable file to your pc.

4.Locate the file that you downloaded from the Web. From the Start menu select Run <path>:\agxxxx.exe - where <path> is the directory path where the file is located, and agxxxx is the instrument driver that you downloaded .

5.Follow the directions on the screen to install the software. The default installation selections will work in most cases. The readme.txt file contains product updates or corrections that are not documented in the on-line help. If you decide to install this file, use any text editor to open and read it.

6.To use the VXIplug&play instrument driver, follow the directions in the VXIplug&play online help under “Introduction to Programming”.

Accessing Online Help

A comprehensive online programming reference is provided with the driver. It describes how to get started using the instrument driver with Agilent VEE, LabVIEW, and LabWindows. It includes complete descriptions of all function calls as well as example programs in C/C++ and Visual BASIC.

aTo access the online help when you have chosen the default Vxipnp start folder, click on the Start button and select Programs Vxipnp Agxxxx Help (32-bit).

- where agxxxx is the instrument driver.

8 Introduction

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Contents July PROGRAMMING GUIDE GPIB DC POWER SUPPLIESAgilent Part No Microfiche Part NoPrinting History Safety GuidelinesLANGUAGE DICTIONARY ContentsGENERAL INFORMATION REMOTE PROGRAMMINGDescription of Subsystem Commands COMPATIBILITY LANGUAGE ERROR MESSAGESSTATUS REPORTING SCPI CONFORMANCE INFORMATIONUser’s Guide General InformationAbout this Guide Documentation SummaryAccessing Online Help Prerequisites for Using this GuideVXIplug&play Power Product Instrument Drivers Downloading and Installing the DriverConventions GPIB Capabilities Of The Power SupplyRemote Programming Introduction To SCPICommon Commands Types of SCPI CommandsSCPI Messages Structure of a SCPI MessageVOLT LEV PROT CURR Parts of a SCPI MessageFigure 2-1.Command Message Structure Message ComponentRoot Specifier Traversing the Command TreeQuery Indicator Message Unit SeparatorMoving Among Subsystems Figure 2-2.Partial Command TreeActive Header Path The Effect of Optional HeadersSCPI Data Formats Including Common CommandsSCPI Queries Value CouplingClass ExamplesListening Formats Table 2-2.Suffixes and MultipliersProgramming Voltage and Current Controlling the OutputDisable the output Enable the outputWriting to the Display Saving and Recalling StatesProgramming Status Programming the Digital I/O Port System ConsiderationsThe GPIB Address A direct primary address and a secondary address Error Handling DOS DriversAgilent BASIC Controllers Sample Program CodeController Using Agilent 82335A Interface Programming Some Power Supply Functions22 Remote Programming Programming Some Power Supply Functions continued1130 24 Remote Programming Language Dictionary Related CommandsCommon Commands Subsystem CommandsFigure 3-1.Common Commands Syntax Diagram Description Of Common CommandsDescription Meaning and Type0 to Query Syntax ESR?IDN? Related CommandsPSC 0 *PSC OPC?OPT? Power-onStatus Clear Device InitializationDescription Meaning and TypeDescription Bit Configuration of Status Byte Register STB?TST? Figure 3-2.Subsystem Commands Tree Diagram Description of Subsystem CommandsCalibration Commands ABORCURRENT:LEVEL 200 MA Current SubsystemCURR CURR TRIG CURR PROT STATDigital I/O Port Programming Chart Display SubsystemDIG DATA DISPenclosed in either single ‘ or double quotes DISP MODEDISP TEXT DISP TEXT DEFAULT MODEMEAS CURR? MEAS VOLT? Initiate SubsystemMeasure Subsystem INIT INIT:CONT0 or Output SubsystemOUTP OUTP PROT CLE OUTP PROT DELOUTP REL POL NORM OUTP RELOUTP REL POL OUTP REL 1 OUTP REL OFFSTAT OPER? Status SubsystemSTAT PRES Status Operation RegistersSTAT OPER NTR STAT OPER PTR STAT OPER ENABSTATUS OPERATION ENABLE? STAT QUES ENAB Status Questionable RegistersSTAT QUES? STAT:QUES:COND?corresponding Questionable Event register System CommandsSTAT QUES NTR STAT QUES PTR SYST ERR?TRIG Trigger SubsystemSYST LANG SYST VERS?VOLTAGE LEVEL 200 MV Voltage SubsystemTRIG SOUR VOLT VOLT TRIGCommand Command SummaryVOLT:PROT Command SummaryCommand Parameters Agilent Model and Value Characteristics in the Operating GuideProgramming Parameters ParameterOperation Status Group Power Supply Status StructureRegister Commands Status ReportingMeaning Table 4-2.Bit Configurations of Status RegistersSignal Figure 4-1.Power Supply Status ModelCLS *ESR? Questionable Status GroupStandard Event Status Group Table 4-3.Status Questionable CommandsStatus Byte Register Service Request Enable RegisterInitial Conditions At Power On Determining the Cause of a Service InterruptCaused By The PON Power-OnBitServicing an Operation Status Mode Event Table 4-4.Default Power On Register StatesTable 4-5.Generating RQS from the CC Event Monitoring Both Phases of a Status TransitionAdding More Operation Events Servicing Questionable Status EventsTechniques in ANSI/IEEE Std SCPI Command CompletionDFI Discrete Fault Indicator RI Remote InhibitSystem Error Messages Error MessagesPower Supply Hardware Error Messages Calibration Error Messages60 Error Messages SCPI Version SCPI Confirmed Commands1SCPI Approved Commands SCPI Conformance InformationNON-SCPICommands1 Compatibility Language ARPS Command1 Table B-1.ARPS CommandsSimilar SCPI Table B-1.ARPS Commands continued Description Index 68 Index Page Canada Agilent Sales and Support OfficeUnited States Latin America
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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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