User`s manual

Matrix Modules Command Reference 49Chapter 4
Chapter 4
Matrix Modules Command Reference
Using This Chapter
This chapter describes Standard Commands for Programmable Instruments
(SCPI) and summarizes IEEE 488.2 Common (*) commands applicable to
the E1465A, E1466A, and E1467A Relay Matrix Switch modules. This
chapter contains the following sections:
• Command Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
• SCPI Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . .51
• SCPI Commands Quick Reference . . . . . . . . . . . . . . . . . . . . .78
• IEEE 488.2 Common Commands Reference . . . . . . . . . . . . . .79
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 the asterisk character
(*), 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:
*RST *ESR 32 *STB?
SCPI Command
Format
The SCPI commands perform functions like closing switches, opening
switches, scanning channels, 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>
[ROUTe:] is the root command, CLOSe and SCAN are second-level
commands with parameters. There must be a space between the
second-level command (such as CLOSe) and the parameter
(<channel_list>).