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Chapter 7
System Instrument Command Reference
About This Chapter This chapter describes the Standard Commands for Programmable
Instruments (SCPI) command set and the IEEE 488.2 Common Commands for
the System Instrument. The System Instrument is part of the Agilent
E1300/E1301 Mainframe’s internal control processor and is therefore always
present in a Mainframe. This chapter contains the following sections:
• Command Types. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
• SCPI Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4
• Common Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . 7-65
• GPIB Message Reference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-72
• Command Quick Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-75
1
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, *ESE < mask> , *STB?
SCPI Command Format The 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 root command, CLOSe and SCAN are second level commands
with parameters, and :MODE? is a third level command.
System Instrument Command Reference 7-1