Measurement Studio for VB6

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Sequence stops at advise

Hello!

 

I wrote a code in VB6 for a Keithley Sourcemeter to run it simultaneously with the PPMS to measure high resistive samples. So I send advises over MultiVu, which activate the Keithley. This work quite well, but at some point, while I'm doing long measurements or send many advises in short time, the MultiVu does not continue 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?

 

 

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