National Instruments GPIB-PC - Manual (Page 194)

IBIC Section Five
GPIB-PC User Manual 5-6 ©National Instruments Corp.
Using SET
Use IBFIND to open each device or board. Once the device or board is
opened, use the auxiliary function SET to select which opened device
or board to access. SET changes the prompt to the new symbolic name.
Example:
dev1:
plotter:
set plotter
This example assumes that IBCONF was used to give a device the
name plotter.
The following example summarizes the use of IBFIND and SET in a
typical program.
Example:
dev1:
plotter: ibwrt "F3T7G0"
[0100] (cmpl)
count: 6
plotter: set dev1
dev1: ibwrt "X7Y39G0"
[0100] (cmpl)
count: 7
dev1:
ibfind plotter
: ibfind dev1