User manual

LABKON Series
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GMC-I Messtechnik GmbH 29
4.3 An Introduction to the SCPI Language
SCPI (Standard Commands for Programmable Instruments) is an ASCII-based instrument command language designed for
test and measurement instruments.
The detailed techniques used to program the power supply over the remote interface are introduced in the following sections.
SCPI commands are based on a hierarchical structure, also known as a tree system. In this system, associated commands
are grouped together under a common node or root, thus forming subsystems. A portion of the SOURce subsystem is shown
below to illustrate the tree system.
[SOURce:]
CURRent
[:LEVel]
[:IMMediate]
[:AMPLitude] {<current>|MIN|MAX}
[:AMPLitude]？ [MIN|MAX]
:TRIGgered
[:AMPLitude] {<current>|MIN|MAX}
[:AMPLitude]？ [MIN|MAX]
:LIMit
[:AMPLitude] {<current>|MIN|MAX}
[:AMPLitude]？ [MIN|MAX]
VOLTage
[:LEVel]
[:IMMediate]
[:AMPLitude] {<voltage>|MIN|MAX}
[:AMPLitude]？ [MIN|MAX]
:TRIGgered
[:AMPLitude] {<voltage>|MIN|MAX}
[:AMPLitude]？ [MIN|MAX]
:LIMit
[:AMPLitude] {<voltage>|MIN|MAX}
[:AMPLitude]？ [MIN|MAX]
[SOURce:] is the root keyword of the command, CURRent and VOLTage are the second-level keywords, and LIMit is the
third-level keywords. A colon ( : ) separates a command keyword from a lower-level keyword.