User`s guide

Programming Your Instruments

Addressing Instruments

Example: Addressing LAN Instruments Using VISA/SICL

The TCPIP LAN Client interface system in this figure consists of a Windows

PC with a LAN (NIC) card and three LAN instruments. Instrument1 and

instrument2 are VXI-11.2 (GPIB Emulation) instruments and instrument3

is a VXI-11.3 LAN instrument.

For this system, the IO Config utility has been used to assign the LAN card

a VISA name of “TCPIP0” and SICL name of “lan”. For the addressing

examples, instrument1 has been addressed by its machine name,

instrument 2 has been addressed by its IP address, and instrument3 by

its LAN name (inst0).

Since unique names have been assigned by IO Config, you can now use the

VISA

viOpen command or the SICL iopen command to open the I/O paths

to the GPIB instruments as shown in the figure.

NOTE

After the system is configured, this screen may also display an

Edit

VISA Config...

button. Clicking this button allows you to manually

configure the interface as desired.