161
Chapter 5 Remote Interface Reference
About the SCPI Language
4
5
About the SCPI Language
Common Commands
The IEEE 488.2 standard defines the common commands that perform
functions such as reset, self-test, status byte query, and so on. Common
commands are four or five characters in length, always begin with an
asterisk (*), and may include one or more parameters. The command
keyword is separated from the first parameter by a space character.
Some examples of common commands are shown below:
SCPI Command Format
The SCPI commands perform functions like closing/opening switches,
making measurements, querying instrument states or retrieving data. A
subsystem 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:
[ROUTe:]
CLOSe <channel_list>
SCAN <scan_list>
SCAN:SIZE?
[ROUTe:]
is the root command,
CLOSe
and
SCAN
are second level
commands with parameters, and
:SIZE?
is a third level command.
Command Separator
A colon (:) always separates a command from the next lower level
command, as shown below:
ROUTe:SCAN:SIZE?
Colons separate the root command from the second level command
(
ROUTe:SCAN
) and the second level from the third level (
SCAN:SIZE?
).
*RST
*ESE 32
*STB?
Summary of Contents for Agilent 3499A
Page 13: ...1 1 Quick Start ...
Page 27: ...2 2 Front Panel Operation ...
Page 55: ...3 3 System Overview ...
Page 77: ...4 4 Features and Functions ...
Page 113: ...5 5 Remote Interface Reference ...
Page 164: ...164 5 ...
Page 165: ...6 6 Error Messages ...
Page 173: ...7 7 Plug in Modules ...
Page 256: ...256 Chapter 7 Plug in Modules 44475A Breadboard Module 7 ...
Page 261: ...261 Chapter 7 Plug in Modules 44476B Microwave Switch Module 4 7 The 44476B is shown below ...
Page 286: ...286 Chapter 7 Plug in Modules Terminals and Connections Information 7 ...
Page 288: ...288 7 ...
Page 289: ...8 8 Application Programs ...
Page 299: ...9 9 Specifications ...
Page 343: ...343 Chapter 9 Specifications 44475A Breadboard Module 4 9 ...