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SCPI Introduction

 Valid commands that precede an invalid command in a multiple command

program message are executed.

 Valid commands that follow an invalid command in a multiple command

program message are ignored.

2.4 SCPI Data Formats

All data programmed to or returned from the electronic load is ASCII. The data

may be numerical orcharacter string.

Numerical Data Formats

Symbol Data Form

Talking Formats

<NR1> Digits with an implied decimal point assumed at the right of the

least-significant digit.Examples: 273

<NR2>

Digits with an explicit decimal point. Example: .0273

<NR3> Digits with an explicit decimal point and an exponent. Example:

2.73E+2

Listening Formats

<Nrf>

Extended format that includes <NR1>, <NR2> and <NR3>.

Examples:

273 273. 2.73E2

<Nrf+>

Expanded decimal format that includes <NRf> and MIN MAX DEF.

Examples: 273 273. 2.73E2 MAX. MIN and MAX are the minimum

and maximum limit values that are implicit in the range specification

for the parameter. DEF is the default values for the parameter.

<Bool>

Boolean Data. Example: 0 | 1 or ON | OFF

Suffixes and Multipliers

Class Suffix Unit Unit with Multiplier

Amplitude V volt MV (millivolt)

Current A ampere MA (milliampere)

Power W watt MW (milliwatt)

Resistance ohm OHM MOHM (megohm)

R ohm MR(megohm)

Slew Rate A/uS amps/second -

R/s ohms/second -

V/s volts/second -

Time s second MS (millisecond)

ITech IT8731 Programming Guide

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