Agilent Technologies E1468A, User Manual

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Relay Matrix Switch Command Reference 37
Chapter 3
Chapter 3
Relay Matrix Switch Command Reference
About This Chapter
This chapter describes the Standard Commands for Programmable
Instruments (SCPI) and the IEEE 488.2 Common commands for the
E1468A and E1469A Relay Matrix Switch modules. See the appropriate
command module user’s manual for additional information on SCPI and
Common commands. This chapter contains the following sections:
•
Command Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
•
SCPI Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . .40
•
IEEE 488.2 Common Commands Quick Reference. . . . . . . . .65
•
SCPI Commands Quick Reference . . . . . . . . . . . . . . . . . . . . .66
Command Types
Commands are separated into two types: IEEE 488.2 Common
commands and SCPI commands.
Common
Command Format
The IEEE 488.2 standard defines the Common commands that perform
functions like reset, self-test, status byte query, etc. 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:
*RST, *ESE <mask>, *STB?
SCPI Command
Format
SCPI commands perform functions like closing switches, making
measurements, and 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 <channel_list>
MODE?
[ROUTe:] is the optional root command, CLOSe and SCAN are
second-level commands with parameters, and :MODE? is a third-level
command. [ROUTe:] is an implied command and is, therefore, optional.