Keysight Technologies 3458A Guide D'utilisation page 228

6 Command Reference
Query commands
A query command ends with a question mark and returns one or more responses
to a particular question. For example, the ID? query command returns the
response Keysight 3458A.
Standard query commands
The following standard query commands are documented individually in this
chapter:
AUXERR?LINE?
CALNUM?MCOUNT?
ERR?OPT?
ERRSTR?REV?
ID?SSPARM?
ISCALE?STB?
TEMP?
Additional query commands
In addition to the standard query commands, you can create others by appending
a question mark to any command that can be used to configure or program the
multimeter. (Query commands of this type are not documented individually in this
chapter. Instead, they are combined with the parent command. That is, the
AZERO command page contains information on both AZERO and AZERO?.) As an
example, the AZERO command enables or disables the autozero function. The
possible autozero modes are OFF, ON, or ONCE. You can determine the present
autozero mode by appending a question mark to the AZERO command as shown
in the following program.
10 OUTPUT 722;"AZERO?"
20 ENTER 722;A$
30 PRINT A$
40 END
In the power-on state, the multimeter returns numeric responses to query
commands. For example, the above program might return 1 which is the numeric
query equivalent of the ON parameter. Numeric query equivalents are listed under
each applicable command in this chapter.
For commands that have parameter choices (such as the AZERO command), the
query version of the command returns the presently specified choice (or its
numeric query equivalent). Many commands use actual values specified in
228 Keysight 3458A User's Guide