Giga-tronics 8650B Series, Руководство по эксплуатации

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Series 8650B Universal Power Meters
3-14 Publication 31470-001, Rev C, November 2, 2017
3.2.9 SCPI Command Syntax
The following conventions are used with the SCPI commands in this publication. Some commands will be in both
upper- and lower-case, such as CALCulate and MEMory. The uppercase is the required input. The whole word
can be used if desired. Table 3-3 lists in alphabetical order all of the SCPI commands supported by the power
meter. The basic function performed by that command is given, and the page number of this chapter where a
description of each command can be located.
3.2.9.1 Commands in Brackets
Commands and command separators within brackets, such as [COMMand:], are optional. These portions of the
commands may be used in the program command strings, but are not required for proper operation of the
power meter.
3.2.9.2 Programmer Selective Parameters
Command descriptions enclosed in angle brackets (< and >) show the syntax placement of configurable
parameters. A description of the necessary parameter and the range of values or mnemonics valid for that
parameter are enclosed in angle brackets.
3.2.9.3 Italics in Syntax Descriptions
Some command syntax descriptions show certain words in italics such as space and comma to indicate where
the character must be included within a command string.
3.2.9.4 Query Format
Except where specifically noted, all query commands are formed by adding a question mark (?) to the command
header. Be sure to omit command parameters when using the query format. Some commands have only a query
format. With the exception of the Calibration queries, query commands will not change the status of the power
meter. The CALibration1? and CALibration1:ZERO? commands query respectively to automatically begin the
calibration and zeroing process.
3.2.9.5 Linking Command Strings
The 8650B uses ASCII strings for commands. When sending more than one command in a single string, a
semicolon must be used as a delimiter between commands. No spaces or other characters are necessary. Use
only a semicolon to link commands in a string.
3.2.9.6 Measurement Data Output Format
The command examples in this chapter are written in SCPI format. Different languages will use different
commands, but the string sent or received will always be the same.