
10
TOS5300_INTERFACE
Message Overview
The information that is transferred between the controller (the PC) and the TOS5300 Series is
referred to as “messages.”
The TOS5300 Series uses the SCPI language for these messages.
The messages that the PC sends to the TOS5300 Series are commands. The messages that the
TOS5300 Series sends to the PC are responses.
Commands are used to execute functions or change settings on the TOS5300 Series or to query its
settings or status. Responses are used to return the product’s settings or status.
SCPI command syntax
Command hierarchy
SCPI is an ASCII-based command language that was designed for test and measuring equipment.
The command structure is composed of the common roots and nodes that are the building blocks
of the SCPI subsystem. A command consists of a program header, parameters, and punctuation
marks.
The following table uses the SYSTem subsystem as an example to explain the hierarchy.
•
A colon (:) separates a higher node from a lower node.
Command syntax
In this manual, SCPI commands are expressed in the following format.
Example:
SYSTem:CONFigure:BEEPer:VOLume:PASS {<numeric>|MINimum|MAXimu
m}
•
SCPI commands can be written in long form (with all the characters) or in short form (omitting
the lowercase characters).
SCPI commands can be transmitted in either long form or short form.
•
SCPI commands are not case sensitive. VOLT, Volt, and volt are all received as the short form of
the VOLTage command.
VOLUME, Volume, and volume are all received as the long form of the VOLume command.
•
A space separates a program header and its parameters.
•
Multiple parameters are separated by commas.
•
Compound commands can be created by concatenating two commands with a semicolon.
Program header
Parameter
Node level
:SYSTem
Root node
:CONFigure
2nd level
:BEEPer
2nd level
:VOLume
3rd level
:FAIL
<numeric>
4th level
:PASS
<numeric>
4th level
:DATE
<nr1>, <nr1>, <nr1>
2nd level
:ERRor
2nd level
[:NEXT]
<code>, “<description>”
3rd level
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