Visa error 1073807346

Question

I?m new on LabView and create an application that uses a power meter, everything works fine during 127 tests but after this I get the following error message :
- Error ? 1073807346 Occurred at VISA Write in ?
- Error Query VI -> ???.
Posible reasons:
VISA: ( Hex 0xBFFF000E ) the given session object reference is invalid.
Why is that the system works fine during 127 iterations ?
Is there any buffer or something that maybe is getting overload ?
I hope somebody can help me.

Answer 1

Hello,
The open VISA is not exactly in a loop, because it?s in a VI that opens twice on each test but when is open then the VISA session open only is called once and the loop is for the measure, because the meter is accessed X number of times but the VISA session is closed only after all the measures have been made I think this works as you mentioned, then is not really inside the loop, I couldn't send you the Spy capture file the system indicates an error, the file is about 1.2 Mb for one run, I only capture one because the systems run very slowly when the NI Spy is running then it will take a lot of time and a very large file to reach the 127 tests, I think the file is big because the meter it?s not the only instrument
that I?m accessing, I?m using a generator and a power supply during the same test.
Let me know if there is another way to send you the file.
BCU