Agilent Technologies FS2010 Guía de usuario descargar pdf (Pagina 139)

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);

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Agilent Technologies FS2010 Guía de usuario Pagina 139