Hi Steve,
You don't need to create a virtual channel to talk to the Keithley MM.
That's only for Data Acquisition type applications. You are simply
doing instrument communication. Since you can successfully communicate
with that instrument in MAX there's no more configuration you need to
do in MAX for this to work in LabVIEW.
Your next step is to just set up communication with that instrument
through LabVIEW. There is an example to do this for you in LabVIEW 6.1
Open the example finder (Help->Find Examples), then navigate through the following folders.
Hardware Input and Output
GPIB
In this folder you will find a VI called LabVIEW <-> GPIB .vi.
This should allow you to do your communication with the instrument in
LabVIEW. If you don't want to just do lower level communication you can
also check out the following page to download an instrument driver for
that device that works in LabVIEW 6.1 (get the LabVIEW 6.0 driver).
Using instrument drivers allows you another layer of abstraction from
the lower level I/O functions.
Keithley 2700 Instrument Driver Page
Good Luck!
Matt S.
LabVIEW Integration Engineer with experience in LabVIEW Real-Time, LabVIEW FPGA, DAQ, Machine Vision, as well as C/C++. CLAD, working on CLD and CLA.