The following error is generated when trying to control my multimeter and powermeter: -1073807339

[shals]

Hi Hassan,

Thanks for showing interest in my problem.

I am facing an issue while controlling Agilent 4155B Parameter Analyzer together with HP 54645D Mixed Signal Oscilloscope.

I have more devices to control but to debug I am connecting only these two to my PC with GBIP interface card.

When I turn OFF the oscilloscope, the parameter analyzer works perfectly as aspected and I am able to sample the data.

However when I turn ON the oscilloscope, the parameter analyzer configuration times out.

The time out occurs at "wait for RQS vi" in my parameter analyzer control vi, when the oscilloscope is ON.

When the oscilloscope is OFF this RQS vi returns a value after a very short delay the everything works fine.

I am able to configure the oscilloscope independently and plot the waveform on my screen irrespective if the parameter analyzer is ON or OFF.

I have checked the INSTR addresses of both devices and they are different.

Can you please suggest few solutions that I could try?

[shals]

If I replace the wait for RQS block with a delay of 3 sec.. everything works.

But I think this is only a work around and not a true solution.

[jdubs]

shals,

You could try comparing two spy captures, one with oscope on, and one with it off.  It would be interesting to know if there is a difference between the two captures. 

Thanks,

Jen W

Applications Engineer

National Instruments

ni.com/support