Interfacing Keithley 428-PROG using Labview

[mb1982]

Hello,

I have a NI test setup which applies the voltage across DUT and measures the output current using a fixed gain current-to-voltage preamplifier. I'm planning to replace this preamplifier with Keithley 428-PROG. It's connected to the PC through a GPIB cable (IEEE 488 interface). I need to change the gain on the fly. I have never programmed an external device such as this before with LabView and need help to understand how to establish communication between LabView and Keithley. Instructions manual (http://www.keithley.com/support/data?asset=973) section 4 -  page 4-20, shows how to program for variable gain in, I guess, C/C++.

I will appreciate if you can advice me where and how to start. If you have an example code that will help a lot.

Thanks in advance.

-Mangesh

[Lewis_G]

When communicating with a new instrument, you should check the ni.com/idnet to see if somebody has written a driver for it.

Your fortunate that somebody has: http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=2997

There will be a shipping example that should get you going.