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SCPI Command Introduction

by using a root specifier as follows:

PROTection:CLEAr;:STATus:OPERation:CONDition?

The following message shows how to combine commands from different

subsystems as well as within the same subsystem:

POWer:LEVel 200;PROTection 28; :CURRent:LEVel 3;PROTection:STATe ON

Note the use of the optional header LEVel to maintain the correct path

within the voltage and current subsystems, and the use of the root

specifier to move between subsystems.

Including Common Commands

You can combine common commands with subsystem commands in the

same message. Treat the common command as a message unit by

separating it with a semicolon (the message unit separator). Common

commands do not affect the header path; you may insert them anywhere

in the message.

VOLTage:TRIGgered 17.5;:INITialize;*TRG

OUTPut OFF;*RCL 2;OUTPut ONIT872X-3X SCPI Communication protocol 17

Case sensitivity

Common commands and SCPI commands are not case sensitive. You

can use upper or lowerfor example:

*RST = *rst

:DATA? = :data?

:SYSTem:PRESet = :system:preset

Long-form and short-form versions

A SCPI command word can be sent in its long-form or short-form version.

However, the short-form version is indicated by upper case characters.

Examples:

:SYSTem:PRESet long-form

:SYST:PRES short form

:SYSTem:PRES long-form and short-form combination

Note that each command word must be in long-form or short-form, and

not something in between.

For example, :SYSTe:PRESe is illegal and will generate an error. The

command will not be executed.

ITech IT-M7700 Series Programming Guide

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