Scripting the Sourcemeter Keithley 2602 with LabView

[nicoC]

Hi

I am currently trying to control a Sourcemeter Keithley 2602 using a serial link and Labview 7.1, and I have some troubles.

I wish to use a script, as it is the most flexible way to communicate with the 2602. Then, using Keithley TestScript Builder, this script works fine:

smua.reset()

smua.source.limiti = 10e-3

SweepVLinMeasureI(smua, 1, 20, 0.1, 20)

smua.source.output = smua.OUTPUT_ON

waitcomplete()

smua.source.output = smua.OUTPUT_OFF

printbuffer(1, 20, smua.nvbuffer1.readings)

and I get my 20 readings back on the console

Then, I wish to use LabView to control the 2602. Documentation shows (2602 User's Manual, p. 3-15) how to use LabView and script. But it does not work (see my2602_Script.vi). As far as I can tell with NI-Spy, Visa session opened, Command are written to VISA-Resource, but the script is never executed.

Then again, I try to use the sub-Vi's that come with the Keithley 2602 driver (see my2602_Sweep.vi). This time, the sweep is executed, but my Labview code ends before the end of the sweep. I cannot find the sub-vi equivalent to the "waitcomplete()" instruction.

Does anyone have experienced this kind of troubles ?

Thanks in advance

Nicolas

Download File:post-3834-1145546559.vi

Download File:post-3834-1145546571.vi