Query Commands - Anritsu LMR Master S412E Programming Manual

An integrated, handheld multi-function land mobile radio test tool

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2-6 Subsystem Commands

All S412E SCPI commands, except the :ABORt command, have one or more subcommands

(keywords) associated with them to further define the instrument function to be controlled.

The subcommand keywords may also have one or more associated subcommands (keywords).

Each subcommand level adds another layer to the command tree. The command keyword and

its associated subcommand keywords form a portion of the command tree called a command

subsystem. The :DISPlay command subsystem is shown in

TRACe | MEMory | BOTH

:GDAPerture?

SCPI :DISPlay Subsystem Example

A colon (:) separates each subsystem. For example, the command

:DISPlay:WINDow:Trace MEMory sets the window to display memory trace. Trace is part

of the :WINDow subsystem, which is part of the :DISPlay subsystem. Y is also part of the

:DISPlay:WINDow:Trace{1-4} subsystem.

Query Commands

As defined in IEEE-488.2, a query is a command with a question mark symbol appended

(examples: *IDN? and :TRACe[:DATA]? [1]|2|3|4). When a query form of a command

is received, the current setting that is associated with the command is placed in the output

buffer. Query commands usually return the short form of the parameter. Boolean values are

returned as 1 or 0, even when they can be set as on or off.

Single | DUAL | TRI | QUAD

PN: 10580-00319 Rev. N

Programming with SCPI

:TRACe {1-4}