7451A/7461A/7461P Digital Multimeter Operation Manual
6.2 GPIB
6-3
6.2
GPIB
6.2.1
Overview
The automatic measurement system can be set up easily by using GPIB (General Purpose Interface Bus)
because measurement functions and parameters can be set and measurement data can be read by using the
external control.
The measurement values are not affected by any external devices connected to this instrument, because the
GPIB signals from this instrument are electrically isolated from the measurement signal system.
The remote commands are common to the USB commands.
•
General Specifications
Standard:
IEEE-488
Code:
ASCII code
Logical level:
Logic 0 “High” state
+2.4 V or more
Logic 1 “Low” state
+0.4 V or less
Table 6-1 Interface Functions
Code
Function
SH1
Source handshake function
AH1
Acceptor handshake function
T5
Basic talker function, Listener-specified talker cancel function, Talk-
Only mode function, Serial polling function
L4
Basic listener function, Talker-specified listener cancel function
SR1
Service request function
RL1
Remote/Local switching function
PP0
No parallel polling function
DC1
Device clear function (The SDC and DCL commands can be used.)
DT1
Device trigger function (The GET command can be used.)
C0
No controller function
E2
Using the tri-state bus driver
