Hello,
I am getting intermittent read timeout errors (-1073807339) on visa
read (query of current level) from and Elgar EW801 AC power source.
I have looked at the knowledgebase, and came across a post having to
do with this issue under LV 4.1 and win95. The solution was to add
"syncVisa=true" to labview.ini. I am running winNT4 and LV5.1.1, but
I tried the solution anyway with no positive results, in fact it
seemed to make the problem worse, so I removed the line.
I have also noticed the problem seems to happen more often when I do a
lot of task switching in windows while the test is looping. I can get
it to happen within 4-5 loops as opposed to <50 normally.
I have tried adding delays before/after the read with no positive
results, still intermittent and reproducable.
Is there any global VISA read timout setting anywhere to possibly
increase this value?
How do I tell which version of VISA I am running?
What are your suggestions for this situation?
It is causing a large hit on yield reports with our product.
Thanks
David Jenkinson
253-335-6056
