Compatibility of PCI-6602 board and NI-DAQ

[Peter T]

Hello,

I've written an application using Labview 5.1.1 for a PCI-6602 Counter/Timer
Card. The application works fine for NI-DAQ 6.5.1... but when I've
installed NI-DAQ 6.7 and NI-DAQ 6.8, I get a blue screen with the following
message:

"An exception 0E has occurred at 0028:C29CF363 in VxD NIPALK(01)+0002B403
This was called from 0028:C29C75C0 in VxD NIPALK(01)+00023660"

I just upgraded to Labview 6i, and I get the same message. When I revert
back to NI-DAQ 6.5.1, everything works fine. Does anyone have any ideas why
I am getting this error?

Thanks,

Peter

[Geneva L.]

Peter,

It sounds like you're running into software conflicts caused by installing different versions of NI-DAQ on top of each other. Whenever you want to upgrade NI-DAQ, the best thing to do is to uninstall the current version and then install the new version. So, to clean your Windows machine, go to Start >> Settings >> Control Panel >> Add/Remove Programs.

You may have installed NI-DAQ 6.8 with
LabVIEW 6.0, as it comes with the default installation. Choose NI LabVIEW 6 and Add/Remove the NI-DAQ component. Then, back at the Control Panel Add/Remove Programs window, choose NI-DAQ to Remove if you see a version listed there.

Then, I recommend downloading the latest version NI-DAQ 6.9.1 from the http://www.ni.com/download pages.

Regards,

Geneva L.
Applications
Engineering
National Instruments
http://www.ni.com/ask

[Peter T]

I found the problem. I had the priority of my VI set to 'highest(time
critical)'. If I change the priority to high, everything works great.