Agilent 34980A Multifunction Switch/Measure Unit *34980-90005*
Agilent 34980A Multifunction Switch/Measure Unit *34980-90005*
Agilent 34980A Multifunction Switch/Measure Unit *34980-90005*
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3 Features and Functions<br />
Basic Operating Modes<br />
SCPI Commands<br />
The <strong>34980A</strong> has two basic operating modes: Front Panel Operation and<br />
Remote Interface Operation.<br />
The ability to configure the instrument, control circuits and make<br />
measurements from the front panel is useful when the devices being tested<br />
are in close proximity to the <strong>34980A</strong>. However, for most test applications,<br />
the <strong>34980A</strong> will be located remotely from the devices under test, and you<br />
will send commands to it using its remote interface connectivity modes<br />
(e.g. LAN, GPIB or USB) and your choice of software (e.g. direct SCPI<br />
commands, Web Browser Interface).<br />
For all subsequent sections in this chapter (and in the individual User’s<br />
Guides accompanying the plug- in modules); each feature of the <strong>34980A</strong><br />
mainframe is documented in the following order, as applicable:<br />
A description of the feature, its application and available choices.<br />
Instructions for Front Panel Operation.<br />
Programming instructions/examples for Remote Interface Operation.<br />
The instructions under the heading Front Panel Operation either describe how<br />
to navigate the front panel menus or specify specific menu settings. The<br />
instructions under the heading Remote Interface Operation specify the<br />
required SCPI commands.<br />
The instrument complies with the rules and conventions of the present<br />
version of SCPI (Standard Commands for Programmable Instruments).<br />
NOTE<br />
SCPI Language Conventions<br />
For complete details on the SCPI commands, see the Programmer’s<br />
Reference Help file included on the <strong>Agilent</strong> <strong>34980A</strong> Product Reference CD.<br />
Throughout this guide, the following conventions are used for SCPI<br />
command syntax for remote interface programming:<br />
Braces ( { } ) enclose the parameter choices for a given command<br />
string. The braces are not sent with the command string.<br />
A vertical bar ( | ) separates multiple parameter choices for a given<br />
command string.<br />
Triangle brackets ( < > ) indicate that you must specify a value for the<br />
enclosed parameter. The brackets are not sent with the command string.<br />
Some parameters are enclosed in square brackets ( [ ] ). This indicates<br />
that the parameter is optional and can be omitted. The brackets are not<br />
sent with the command string. If you do not specify a value for an<br />
optional parameter, the instrument chooses a default value.<br />
66 <strong>Agilent</strong> <strong>34980A</strong> Mainframe User’s Guide
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