Specifications

Chapter 5
Strain Gage Multiplexer Command
Reference
About This Chapter
This chapter describes Standard Commands for Programmable Instruments
(SCPI) commands and summarizes IEEE 488.2 Common (*) Commands
applicable to the relay and FET strain gage multiplexers. This chapter
contains the following sections.
• Command Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 65
• SCPI Command Reference . . . . . . . . . . . . . . . . . . . . . . . . . . Page 67
• IEEE 488.2 Common Commands . . . . . . . . . . . . . . . . . . . . . Page 98
• Command Quick Reference. . . . . . . . . . . . . . . . . . . . . . . . . . Page 99
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 such as making measurements,
querying instrument states, or retrieving data. A command subsystem
structure is a hierarchical structure that usually consists of a top level (or
root) command, one or more low-level commands, and their parameters.
The following example shows a typical subsystem:
CALibration
:LFRequency <
frequency>
:LFRequency? [MIN | MAX]
:ZERO:AUTO <
mode>
:ZERO:AUTO?
CALibration is the root command, LFRequency, LFRequency?, and ZERO
are second level commands, and AUTO and AUTO? are third level
commands.
Chapter 5 Strain Gage Multiplexer Command Reference 65
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