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Table of Contents
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Summary of Contents for Keysight Technologies U1281A
- Page 1 Keysight U1281A/U1282A Handheld Digital Multimeter Programming Guide...
- Page 2 WITHOUT NOTICE, IN FUTURE EDITIONS. without prior agreement and written applicable in any technical data. FURTHER, TO THE MAXIMUM EXTENT consent from Keysight Technologies as PERMITTED BY APPLICABLE LAW, governed by United States and Safety Notices KEYSIGHT DISCLAIMS ALL WARRANTIES, international copyright laws.
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Page 3: Table Of Contents
Table of Contents Introduction Configuring the IR interface 6 Introduction to Remote Commands 7 Remote Commands U1281A/U1282A Configuration Overview 12 *IDN? 13 *RST 14 *CLS 15 ABOR 16 CALC:AVER 17 CALC:PEAK 18 CONF? 19 FETC? 20 INIT 21 READ? 22... - Page 4 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight U1281A/U1282A Programming Guide...
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Page 5: Introduction
Handheld Digital Multimeter Programming Guide Introduction Configuring the IR interface Introduction to Remote Commands Syntax conventions Querying parameter settings Returned result Prompts This chapter describes the parameters that configure the U1281A/U1282A, and helps you determine the settings to achieve optimum performance. -
Page 6: Configuring The Ir Interface
Introduction Configuring the IR interface The U1281A/U1282A may be operated via an IR interface. The remote control operation will enable you to manually operate the multimeter via a terminal, or to automatically execute a host computer program. The default parameters for the U1281A/U1282A are: –... -
Page 7: Introduction To Remote Commands
TRIGger. Only the short form—which is TRIG—will be recognized by the instrument. Other forms, such as TRIGG, TRIGge, or even TRIGger, will generate errors. An example of the command syntax format is illustrated below: -> TRIG:SOUR <BUS|REF|IMM> Keysight U1281A/U1282A Programming Guide... -
Page 8: Querying Parameter Settings
-> CONF? Responding Message Returned result After the U1281A/U1282A executes a query command, the return of the result will be in the following format: <- <Result> + <CR> <LF> On the multimeter warning the returned prompts will be in the following format except Xon and Xoff: <- <Prompts>... - Page 9 Rotary position: CAP/TEMP measurement ﹡ 6 Rotary position: uA/mA measurement ﹡ 7 Rotary position: A measurement ﹡ 8 ﹡ 9 Rotary position: SQU output ASC(&H11) Xon: The meter is available ASC(&H13) Xoff: The meter is busy Keysight U1281A/U1282A Programming Guide...
- Page 10 Introduction THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight U1281A/U1282A Programming Guide...
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Page 11: Remote Commands
Refer to “U1281A/U1282A Configuration Overview” on page 12. For more details, refer to the U1281A/U1282A User’s Guide. Due to the unique Export Log feature of the U1281A/U1282A, you will need to handle the NOTE exporting of data when using any of the following functions: –... -
Page 12: U1281A/U1282A Configuration Overview
440mA FUSED Connect the test leads to the appropriate input terminals according to the selected measurement function. When the above configuration has been made, you can proceed to use the remote commands in the following sections. Keysight U1281A/U1282A Programming Guide... -
Page 13: Idn
*IDN? Syntax *IDN? Description The *IDN? query allows the U1281A/U1282A to identify itself by returning the model number, serial number, and the firmware version. The string returned is, for example: Keysight Technologies,<model number>,<serial number>,VXX.xx where: – <model number> identifies which U1281A/U1282A model is being used. -
Page 14: Rst
Syntax *RST Description The *RST (reset) command places the U1281A/U1282A in the power-on-reset state without shutting down the line power and returns the current rotary knob position (refer to “Prompts” on page for a legend on rotary knob positions). The interface parameters will return to their default values (refer to “Configuring the IR interface”... -
Page 15: Cls
Remote Commands *CLS Syntax *CLS Description The *CLS (clear status) command clears the event registers in all register groups. This command also clears the Error queue. Example The following command clears the event -> *CLS register bits. Keysight U1281A/U1282A Programming Guide... -
Page 16: Abor
This command places the trigger hold system in the idle state. The display will show a dash (–) until the INIT command is triggered. Example Places the trigger hold mode in the idle state -> ABOR Remarks This command is only available in trigger hold mode. Keysight U1281A/U1282A Programming Guide... -
Page 17: Calc:aver
– MIN returns the minimum recorded value – AVER returns the average recorded value – PRES returns the present recorded value – COUN returns the count value of the average mode Example Returns the maximum recorded value -> CALC:AVER:MAX? <- +2.63782000E+00 Keysight U1281A/U1282A Programming Guide... -
Page 18: Calc:peak
Query CALC:PEAK:MAX|MIN? Description This query returns the value of the peak-hold function. – MAX returns the maximum recorded value – MIN returns the minimum recorded value Example Returns the maximum peak-hold value -> CALC:PEAK:MAX? <- +2.83752000E+00 Keysight U1281A/U1282A Programming Guide... -
Page 19: Conf
The query is returned in the following format string: <“Function”, “Range”, “Resolution”>. When the @2 parameter is omitted, the query returns the function of the primary display. Example Returns the function of the primary display -> CONF? <- VOLT:AC +6.00000000E+01,+1.00000000E-03 Keysight U1281A/U1282A Programming Guide... -
Page 20: Fetc
This query returns the value of the primary or secondary display. When the @2 parameter is omitted, the query returns the value of the primary display. The @3 parameter corresponds to the environment temperature. Example Returns the value of the primary display. -> FETC? <- +1.23475000E+00 Keysight U1281A/U1282A Programming Guide... -
Page 21: Init
Removes the trigger hold mode from the idle -> INIT state and re-triggers the system. Returns the value of the primary display. -> FETC? <- +1.23266000E+00 Remarks This command is only available in trigger hold mode. Keysight U1281A/U1282A Programming Guide... -
Page 22: Read
Example Enters the trigger hold mode. -> TRIG:SOUR:BUS Returns a value after the re-trigger cycle when in the trigger hold mode, or the display -> READ? value when not in the trigger hold mode. <- -1.20000000E-01 Keysight U1281A/U1282A Programming Guide... -
Page 23: Stat
Remote Commands STAT? Syntax STAT? Description This query returns the status of the U1281A/U1282A in the following format string: <ABCDEFGHIJKLMNOPQRSTU> Each of the letters represented in the format string are explained below: Letter Parameter Description 0 : Off Average function... - Page 24 Battery level 1 : Low 0 : Five decimal places Resolution 1 : Four decimal places 0 : Off AC Low Pass Filter status 1 : On 0 : Off DC Filter status 1 : On Keysight U1281A/U1282A Programming Guide...
- Page 25 Remote Commands Example Returns the status of the U1281A/U1282A -> STAT? <- 000000000910L00200000 Keysight U1281A/U1282A Programming Guide...
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Page 26: Syst:batt
Remote Commands SYST:BATT? Syntax SYST:BATT? Description This query returns the residual capacity of the battery in the U1281A/U1282A. Example Returns the residual capacity of the battery -> SYST:BATT? currently in the U1281A/U1282A. <- 100% Keysight U1281A/U1282A Programming Guide... -
Page 27: Trig:sour
Enters the auto hold mode. -> TRIG:SOUR:REF Returns the type of the trigger source. -> TRIG:SOUR? <- REF Remarks The average and peak functions are disabled when you enter either trigger hold mode or auto hold mode. Keysight U1281A/U1282A Programming Guide... -
Page 28: Trig:ref:coun
Sets a count of 50 to the auto hold mode. -> TRIG:REF:COUN 50 Returns the auto hold mode count. -> TRIG:REF:COUN? <- +5.00000000E+01 Remarks The count will be stored in the non-volatile memory, but the “0” parameter will not. Keysight U1281A/U1282A Programming Guide... - Page 29 This information is subject to change without notice. Always refer to the English version at the Keysight Web site for the latest revision. © Keysight Technologies 2015 Edition 1, July 22, 2015 *U1281-90001* U1281-90001 www.keysight.com...
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