NI-DAQmx Devices disappeared in MAX Configuration

[Johwwy]

From time to time, our application will hang (black screen), the reason of this black screen is the NI-DAQmx Devices disappeared under Devices and Interfaces.

When I clicked on the + sign to expand the tree, any of item under My System

- My System

     Data Neighborhood

     Devices and Interfaces

     Scales

     Software

     VI Logger Tasks

[Hal_L]

Hi,

It sounds like something has become corrupt in your DAQ driver. The latest version of DAQmx is 8.0.1. If you have an older version, then I recommend upgrading to the new driver. If you currently have this version, then you can repair the installtion. You can do this by going to Control Panel >> Add/Remove Programs >> NI Software >> Change >> Select "DAQmx"  >> click "Modify" >> and select "Repair." Please let me know if either of these steps eliminates the problem.

Regards,
Hal L.

[Johwwy]

I have done that already, it will work for awhile, but then the problem will come back later after several On and OFF on the machine.

I get this error message under System Event Viewer.

The NI Configuration Manager service terminated unexpectedly. It has done this 1 time(s).

Source: Service Control Manager     Event ID 7034

The nidevldu service terminated unexpectedly. It has done this 1 time(s).

Source: Service Control Manager      Event ID 7034

I cannot duplicate the problem if I disconnect the computer from the machine "without" the NI cable connected. It seems this problem can happen when I have the computer connected to the machine.

Johnny

[Hal_L]

Hi Johnny,

This is a very strange error. What OS do you have on this computer? If it is Windows XP, what service pack(s) do you have?

Regards,
Hal L.

[Johwwy]

Windows XP SP2 Professional.

[Hal_L]

Hi Johnny,

Thanks for the information. Since you have repaired the driver and it didn't fix the issue, I would like you to try a full uninstall/re-install of the driver. Also, just to make sure I'm clear: you are using version 8.0.1. What hardware do you have installed on this system? Please let me know what you find out.

Regards,
Hal L.

[Johwwy]

I have done that already, Process to uninstall the driver.

Remove from Add/Remove Programs, reboot the PC.

Go Program Files and delete the National Instrument folder.

Open Regedit, and remove anything related with National Instrument Key/folder.

Reboot the PC again, and then re-install the new 8.01 version.

Hardware installed on the PC: PCI-DIO-32HS

Johnny

[Hal_L]

Hi Johnny,

If you have already performed these steps, then I think that we have exhausted all of our possiblities here. I recommend contacting National Instruments Technical Support directly for assistance with this issue.

Regards,
Hal L.

[Johwwy]

I did, that was my first option.

He told me exactly what you have told me, but as you know we always need to ask for a second opinion, if the issue still pending...

Thanks a lot for your help my friend.

Johnny

[Erik_J]

Hi Hal and Johnny,

Was this issue ever resolved?  There is a customer experiencing a similiar issue.  Any help would be much appreciated, thanks!

Regards,
Erik