Agilent Technologies 6843A, 6834B, 6814B RS-232 Interface, Interface Commands, RS-232 Data Format

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Installation - 2

RS-232 Interface

The ac source provides an RS-232 programming interface, which is activated by commands located under the front panel Address key. When the RS-232 interface is selected, the GPIB interface is disabled.

NOTE: Sending or receiving data over the RS-232 interface when not configured for REMOTE operation can cause unpredictable results. Always make sure the ac source is configured for remote operation when using the RS-232 interface.

Interface Commands

All SCPI commands are available through RS-232 programming. The SYSTem:LOCal, SYSTem:REMote, and SYSTem:RWLock commands are only available through the RS-232 interface.

SYSTem:LOCal

Places the ac source in local mode during RS-232 operation. The front panel

keys

are functional.

SYSTem:REMote

Places the ac source in remote mode during RS-232 operation. All front panel

 

keys except the Local key are disabled.

SYSTem:RWLock

Places the ac source in remote mode during RS-232 operation. All front panel

 

keys including the Local key are disabled.

RS-232 Data Format

♦constant 11-bit data format

♦one start bit

♦seven data bits plus a parity bit (even or odd parity), or eight data bits without parity (parity bit is "0")

♦two stop bits

You can specify one of the following baud rates: 300 600 1200 2400 4800 9600

NOTE: The ac source always uses one start bit and two stop bits regardless of the baud rate. The number of start and stop bits is not programmable.

RS-232 Connector

The RS-232 connector is a DB-9, male connector. You can connect the ac source to any computer or terminal with a properly configured DB-25 connector. You can use a standard Agilent 24542G or 24542H interface cable.

Table 2-2.RS-232 Connector

1 2 3 4 5

6 7 8 9

Pin

1

2

3

4

5

6

7

8

9

Input/Output

Output

Input

Output

Output

Common

Input

Output

Description

Reserved for service use Receive Data (RxD) Transmit Data (TxD)

Data Terminal Ready (DTR) Signal ground

Data Set Ready (DSR) no connection

no connection

Reserved for service use

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Contents User’s Guide AC Power Solutions Agilent Models 6814B, 6834B, and 6843ACertification Warranty InformationGeneral Safety SummarySafety Symbols EMC DeclarationPrinting History Acoustic Noise InformationTable of Contents Entry Keys Examples of Front Panel Programming Specifications Supplemental CharacteristicsPerforming the Calibration Procedure Error Number ListLocation Document OrientationTopic Agilent Part Number Safety ConsiderationsOptions, Accessories, and User Replaceable Parts Option DescriptionModel Description DescriptionCapabilities Ranges Output CharacteristicFront Panel/Remote Operation Output VA Capability AC Source Output Characteristic in real-time modePage Items Supplied CleaningInspection Damage Packaging MaterialNot block the fan exhaust at the rear of the unit LocationBench Operation Rack MountingInput Source and Line Fuse Installing the Power CordInput Connections Output Connections Output ConnectionsAmpacity and Resistance of Stranded Copper Conductors Wire ConsiderationsVoltage Drops Current RatingsRemote Sense Connections Remote Sense ConnectionsOutput Rating Trigger ConnectionsDigital Connections OVP ConsiderationsController Connections Gpib ConnectorRS-232 Data Format Interface CommandsRS-232 Connector RS-232 InterfaceNull Modem Interface Lines Response Data Terminator Hardware HandshakePreliminary Checkout IntroductionCheckout Procedure Using the KeypadProtclear Procedure Display ExplanationVolt Currprot OFF VoltprotCurrlev CurrprotLine Fuse Error MessagesCase of Trouble Page Front Panel, Overall View Front Panel DescriptionAC+DC System Keys Display Command FunctionImmediate Action Keys Annunciator On Phase SelectedFunction Keys KBESSEL, Rect Scrolling KeysMeter Display Keys Display MeasurementDisplay Output Control KeysRST CLS Protection and Status Control KeysAbort Trigger and List Control KeysInitimmed IMMThrough Are used for entering numeric values Is the decimal Entry KeysSet the output to 120 V rms as follows Setting the Output Voltage AmplitudeProcedure for Single-Phase AC Sources Examples of Front Panel ProgrammingTo verify the output, you can measure it as follows Procedure for Three-Phase AC SourcesPhase 3 to 235 Vrms Action DisplayOvercurrent protection feature as follows Setting the Output FrequencySetting a Protection Feature Voltm Step Using Transient Voltage ModesStep Transient VolttDcycle Pulse TransientVoltm Pulse WidthVoltm Fixed Voltm List Count List TransientAction Volt EOL Step Auto Trigger Delays and Phase SynchronizationSyncphas Initimmed Syncsour PhaseExample Display Example Voltm Step Syncsour Phase Syncphas InitimmedProgramming Slew Rates Using Slew Rates to Generate WaveformsSlewt Voltm FixedSlew Step SlewmCurrpeak Syncsour Phase SyncphasMeasuring Peak Inrush Current RangeAction Display To set the Gpib address, proceed as follows Setting the Gpib Address and RS-232 ParametersTo configure the RS-232 interface, proceed as follows Saving and Recalling Operating StatesAddress Noutputs Agilent 6814B Agilent 6834B Agilent 6843A SpecificationsTable A-1. Performance Specifications1 Table A-2. Supplemental Characteristics Supplemental CharacteristicsSpecifications a Page Recommended Model CharacteristicsEquipment Required Performing the Verification Tests Test SetupTurn-On Checkout Procedure Action Normal Result Voltage Programming and Measurement AccuracyRMS Current Readback Accuracy Agilent 6843A Current Measurement Accuracy Performing the Calibration ProcedureAgilent 6814B Current Measurement Accuracy Agilent 6834B Current Measurement AccuracyFront Panel Calibration Menu Enable Calibration ModeFront Panel Calibration Calibrating the OVP trip point Calibrating and Entering Voltage Calibration ValuesCalibrating and Entering Current Calibration Values Calpass Changing the Calibration PasswordCalibrating the Output Impedance Agilent 6843A only Saving the Calibration ConstantsAgilent Calibration Program Listing Calibration Error MessagesTable B-3. Gpib Calibration Error Messages Calibration Over the GpibFigure B-2. Calibration Program Listing Sheet 1 Figure B-2. Calibration Program Listing Sheet 2 Page Table C-1. Error Numbers Error Number ListError Messages Error Messages C Page Index Index Index Japan United States Latin AmericaCanada Australia/New Zealand Europe Asia PacificManual Updates
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6834B, 6843A, 6814B specifications

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