Acceptable Identification Codes; Table 3-1. Ieee 488 Capability Identification Codes - National Instruments GPIB-120A User Manual

Theory of Operation

Acceptable Identification Codes

Bus A and Bus B of the GPIB-120A are each capable of appearing as a GPIB device having the
GPIB capabilities listed in Table 3-1. For a complete description of each code, consult the
ANSI/IEEE Standard 488.1-1987, IEEE Standard Digital Interface for Programmable
Instrumentation.
Capability Code
SH1
AH1
T5, TE5
L3, LE3
SR1
RL1
PP1, PP2
DC1
DT1
C1, C2, C3, C4, C5
E1, E2
GPIB-120A User Manual

Table 3-1. IEEE 488 Capability Identification Codes

Source Handshake
Acceptor Handshake
Talker, Extended Talker
Listener, Extended Listener
Service Request
Remote/Local
Parallel Poll
Device Clear
Device Trigger
Controller
Three-state bus drivers with automatic switch
to open collector during parallel poll
Description
3-4 © National Instruments Corporation
Chapter 3