Sequense stops at advice

[Philip IC]

Hello!

I wrote a code in VB6 for a Keithley Sourcemeter to run it simultaneously with the PPMS to measure high resistive samples. I send advises through MultiVu over gpib, to the Keithley. This work quite well, but at some point, while I'm doing long measurements, the MultiVu does not get on with the sequence and stops at the advise. I ran everthing with NI Spy, but there was no error, it simply hangs up at the adivse. By looking at NISpy it looks like its messing up with the order of the commands. Even when I sent command "x" before "y", sometimes "y" is send before "x" over gpib. For this reasons I think it stops and maybe a HOLDOFF 0 (resume sequence) gets lost. Could that be? 

I tried so solute this by inserting a sleep command in my VB6 code but without success. 

Has somebode any idea what the problem is an d how I can solve it?

Philip

[Brian_Beal]

I don't know what MultiVu, PPMS, and advises are, but if your source meter is old, then it may be related to this issue.  Older GPIB instruments would say they were ready for a new command when they really weren't.

[atayi]

Philip,

I'm trying to use LabView to communicate with a PPMS.  I am using a separate, non-Quantum Design computer to send/receive info from the PPMS 6000.  Unfortunately, the LabView software I found online (http://www3.amherst.edu/~jrfriedman/ppms-labview.html) is not working at the moment.  The system throws back an error.  Do you know if the PPMS will only communicate with one specific PC?

Thanks,

Alok.