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Remote Operations 13-13

Short-form rules

Use the following rules to determine the short-form version of any SCPI command:

• If the length of the command word is four letters or less, no short form version exists.

Example:

:auto = :auto

These rules apply to command words that exceed four letters:

• If the fourth letter of the command word is a vowel (including “y”), delete it and all the

letters after it. Example:

:immediate = :imm

• If the fourth letter of the command word is a consonant, retain it but drop all the letters

after it. Example:

:format = :form

• If the command contains a question mark (?; query) or a non-optional number included

in the command word, you must include it in the short-form version. Example:

:delay? = :del?

• Command words or characters that are enclosed in brackets ([ ]) are optional and need

not be included in the program message.

NOTE For fastest response to commands, always use short forms.

Program messages

A program message is made up of one or more command words sent by the computer to the

instrument. Each common command is a three letter acronym preceded by an asterisk (*). SCPI

commands are categorized in the :STATus subsystem and are used to explain how command

words are structured to formulate program messages.

:STATus Path (Root)

:OPERation Path

:ENABle <NRf> Command and parameter

:ENABle? Query command

:PRESet Command

Keithley 6430 User Manual

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