IEEE-488.2 common commands
The IEEE-488.2 standard defines a set of common standards that perform functions such as reset, self-test, and
status operations. Common commands always begin with an asterisk ( * ), three characters in length, and may
include one or more parameters. The common keyword is separated from the first parameter by a blank space.
Use a semicolon ( ; ) to separate multiple commands as shown below:
*RST; *CLS; *ESE 32; *OPC?
Channel list parameter
A channel list always starts with "@" and is enclosed in parentheses, shown as "@<ch_list>" throughout this doc-
ument.
You can use the channel list parameter to address one or more channels, example:
(@301) - channel 01 on the module in slot 3.
(@301:302) - channels 01 and 02 on the module in slot 3.
Or list a range of channels, example:
(@101,201:202,302) - channel 01 on the module in slot 1, channels 01 and 02 on the module in slot 2, and channel
02 on the module in slot 3.
A maximum of three channels may be specified through a combination of single channel and ranges. Query results
are channel list order-sensitive. Results are returned in the order they are specified in the list.
If you omit the optional @<ch_list> parameter, the command applies to the currently defined scan list.
When adding a channel list parameter to a query, you must include a space character between the query
indicator ( ? ) and the channel list parameter, example: CALC:MATH? (@401). Otherwise error "–103 Invalid
separator" will occur as listed in Command Errors list.
Keysight DAQ970A/DAQ973A Programming Guide 19
1 Remote Operation
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