70
Table 7-1. GPIB Interface Parameters
Item Parameter Factory Setting Selectable Parameter
1 Address 8 0 to 30
2 Talk OFF ON or OFF
7-4 Commands Summary
Note: All commands must be entered in the upper case.
7-4-1 Overview of Command Type and Formats
There are two types of the meter programming commands: IEEE 488.2 common
commands and Standard Commands for Programmable Instruments ( SCPI ). The
SCPI commands used in the meter are in conformance with the SCPI standard
Version 1993.0.
! Common Command Format
The IEEE 488.2 standard defines the common commands as commands that perform
functions like reset, self-test and status byte query. Common commands always
come with the asterisk “*” character, and may include parameters. Some examples
of Common commands like: *IDN? , *RST , *CLS , *SRE?.
! SCPI Command Format and Query Format
The SCPI commands control instrument functions. A subsystem command has a
hierarchical structure that usually consists of a top level (or root) keyword, one or
more lower level keywords, and parameters. The following example shows a
command and its associated query:
A.
CONFigure:VOLTage:DC 0.12 ; Set the primary display to the DC voltage
measurement function , and select the 120mV
range.
B.
CONFigure:RANGe? ; Return the range of the primary display
measurement.
CONFigure is a root level keyword with the second level keyword,
VOLTage, and 0.12 is the command parameter. The query command ends with
a question mark
“?”.
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