Command Execution Rules; Scpi Command Programming Notes; Scpi Command Formatting - Keithley 2280 Series Reference Manual

Section 6: Introduction to SCPI commands
The colon (:) at the beginning of a command is optional. For example, the following commands are
equivalent:
:SENSe:CONCurrent:REFerence:STATe ON
SENSe:CONCurrent:REFerence:STATe ON

Command execution rules

Command execution rules are as follows:

Commands execute in the order that they are presented in the command message.

An invalid command generates an <CT2280_only_start_SHOW>error message and is not
executed.

Valid commands that precede an invalid command in a command message are executed.

Valid commands that follow an invalid command in a command message are ignored.

SCPI command programming notes

This section contains general information about using Standard Commands for Programmable
Instruments (SCPI).

SCPI command formatting

This section describes the formatting that this manual uses when discussing SCPI commands.
SCPI command short and long forms
This documentation shows SCPI commands with both uppercase and lowercase letters. The
uppercase letters are the required elements of a command. The lowercase letters are optional.
However, if you choose to include the letters that are shown in lowercase letters, you must include all
of them.
When you send a command to the instrument, case is not important — you can mix uppercase and
lowercase letters in program messages.
For example, you can send the command :DISPlay:CLEar in any of the following formats:
:DISPlay:CLEar
:display:clear
:DISP:CLE
:dis:cle
Optional command words
If a command word is enclosed in brackets ([ ]), the command word is optional. Do not include the
brackets if you send the optional command word to the instrument.
For example, you can send the command :STATus:MEASurement[:EVENt]? in any of the following
formats:
:STATus:MEASurement:EVENt?
:STATus:MEASurement?
:STAT:MEAS:EVEN?
:STAT:MEAS?
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Series 2280 Precision Measurement DC Power Supplies Reference Manual
077085501 / February 2015