72
Table 7-1 indicates the GPIB interface factory settings and user selectable
communication parameters.
Table 7-1. GPIB Interface Parameters
Item
Parameter
Factory Setting
Selectable Parameter
1
Address
8
0 to 30
2
Talk
OFF
ON or OFF
The remote state indication of the meter will be flashing on setting to GPIB Talk
ON. The meter auto-asserts the SRQ control line on the GPIB for generating a
new reading each second, and reminds another GPIB device to read the newest
data. Because the function of GPIB Talk only sends reading data to another GPIB
device, the meter doesn’t accept any IEEE 488.2 and SCPI commands.
7-4 Commands Summary
7-4-1 Overview of Command Type and Format
All commands must be entered in the upper case
.
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 command 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.
CONF
igure:VOLTage:DC 0.5 ;
Set the primary display to the DC voltage
measurement , and select the 500mV range.
B.
CONF
igure:RANGe?
; Return the range of the primary display
measurement.
