AMETEK BPS Series Programming Manual - Manual (Page 17)

BPS / MX / RS Series SCPI Programming Manual AMETEK Programmable Power
Manual P/N 7003-961 Rev. AA 17
Including Common Commands
You can combine common commands with system 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 active header path; you may insert
them anywhere in the message.
VOLTage:TRIGger 7.5;*TRG
OUTPut OFF;OUTPut ON;*RCL 2
2.3 Using Queries
Observe the following precautions with queries:
•
Set up the proper number of variables for the returned data.
•
Read back all the results of a query before sending another command to the AC
source. Otherwise a Query Interrupted error will occur and the unreturned data will be
lost.
2.4 Structure of a SCPI Message
SCPI messages consist of one or more message units ending in a message terminator. The
terminator is not part of the syntax, but implicit in the way your programming language
indicates the end of a line (such as a newline or end-of-line character).
2.4.1 The Message Unit
The simplest SCPI command is a single message unit consisting of a command header (or
keyword) followed by a message terminator.
FREQuency?
VOLTage?
The message unit may include a parameter after the header. The parameter usually is
numeric, but it can be a string:
VOLTage 20
VOLTage MAX