User`s guide

Programming via LAN 5
Agilent VISA User’s Guide 139
Note that if you have defined a VISA alias for a USB device
on the remote I/O server, you must either define the same
(or another) alias for the remote USB device on the client
PC, or use the full USB resource string. Alias definitions are
not shared between the remote I/O server and the client.
Addressing a Session Using a Remote Interface
In general, the rules to address a remote session are the
same as to address a local session. The only difference for a
remote session is that you use the VISA interface ID
(provided during I/O configuration via Connection Expert)
that relates to the remote interface.
The following sample shows one way to open a device
session with a GPIB device at primary address 23 on a
remote PC that is running Remote IO Server software. A
remote GPIB interface has been configured at GPIB2 to
communicate with that machine. See Chapter 3,
“Programming with VISA”, for more information on
addressing device sessions.
ViSession defaultRM, vi;.
.
viOpenDefaultRM(&defaultRM);
viOpen(defaultRM, "GPIB2::23::INSTR", VI_NULL,
VI_NULL, &vi);
.
.
viClose(vi);
viClose(defaultRM);