Thanks for previous help finding code to select one of several Keithley ammeters on the GPIB and get readings from the selected instrument.
Now I need to send commands to a Keithley 2700 DAS with 7700 muliplexer plug in card to simply do switch closures and switch openings on the 7700 card when in the 2700's "MULTI" mode. I'm looking for a few lines of VB6 code that sends the appropriate commands to the 2700 to close and open selected switches in the range from 01 to 20.