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NI-488.2 User Manual for Windows Index-8 © National Instruments Corp.
F
fax technical support, C-1
FindLstn routine, 3-13
FindRQS routine, 7-8, 7-9
functions. See auxiliary functions, wibic; NI-488 functions.
G
General Purpose Interface Bus. See GPIB.
global variables, 3-3 to 3-5
count variables - ibcnt and ibcntl, 3-5
debugging applications, 4-3
error variable - iberr, 3-5
status word - ibsta, 3-3 to 3-4, A-1 to A-5
GPIB
configuration, 1-4 to 1-6. See also wibconf utility.
controlling more than one board, 1-5
linear and star system configuration (illustration), 1-4
requirements, 1-5 to 1-6
definition, 1-1
overview, 1-1
sending messages across, 1-2 to 1-3
data lines, 1-2
handshake lines, 1-3
interface management lines, 1-3
Talkers, Listeners, and Controllers, 1-1
GPIB addresses
address bit configuration (illustration), 1-2
enabling repeat addressing, 8-11
listen address, 1-2
primary, 1-2, 8-7
purpose, 1-2
repeat addressing, 4-6
secondary, 1-2, 8-7
syntax in wibic, 5-4 to 5-5
talk address, 1-2
GPIB/PCII/IIA mode switch, 8-11
GPIB programming techniques
device-level calls and bus management, 7-3 to 7-4
high-speed data transfers, 7-2 to 7-3
enabling HS488, 7-2
system configuration effects, 7-3
parallel polling, 7-10 to 7-12
implementing, 7-10 to 7-12
using NI-488 functions, 7-10 to 7-11
using NI-488.2 routines, 7-12