Scpi Command Format - Keysight VXI Bus 75000 C Series User And Programming Manual

Keysight E1458A Command Reference

SCPI Command Format

SCPI commands perform functions like making measurements, querying
instrument states, or retrieving data. The command structure is a hierarchical
structure that usually consists of a top-level (or root) command, one or more
lower-level commands, and their parameters. The following example shows part
of a typical subsystem:
[SOURce:] is the root command, DIGital is a second-level command, :DATAn is a
third-level command (where n is the port number 0 - 11), and :VALue and :BITm
are fourth-level commands (where m is the queried bit location).
Command Separator
A colon (:) always separates one command from the next lower-level command.
This is illustrated as follows:
Colons separate the root command from the second level (MEASure:DIGital) and
the second from the third level (DIGital:DATAn), and so forth.
Abbreviated and Short Commands
The command syntax shows most commands as a mix of upper- and lowercase
letters. The uppercase letters indicate an abbreviated spelling for the command.
For shorter program lines, send only the abbreviated form. For better program
readability use the entire command. The instrument will accept either the
abbreviated form or the entire command.
For example, if the command reference syntax shows the command MEASure,
then MEAS and MEASURE are both acceptable forms. Other forms of MEASure,
such as MEASU or MEASUR will generate an error.
The instrument does not distinguish between uppercase and lowercase
characters. Therefore MEASURE, measure, and MeAsUrE are all acceptable.
Command keywords can be entered in their full form as shown above, or can be
entered in their short form. In this manual, the entry required in short form
commands is always capitalized. The short form is generally used for examples in
this manual.
60
*RST
*ESR 32
*STB?
[SOURce:]
DIGital
:DATAn
[:VALue]?
:BITm?
MEASure:DIGital:DATAn:VALue?
Keysight E1458A 96-Channel Digital I/O Module User Guide
Command Fundamentals