PCI-6255 recognize as PXI?

[steve_mcgie]

I'm trying to install a PCI-6255 board in a desktop running Windows 7 Professional. I'm using Labview 8.5.1, with NI-DAQmx 8.7. Windows Device Manager recognizes the board with no problem and says it's working properly. But MAX (4.4.1) brings it up under "PXI System (Unidentified), as "PXI1::1::INSTR (PCI-6255)".

When I try to start an acquisition task in SignalExpress (2.5.1), I get the following: "No supported devices found."

When I try to record data with my usual custom script, I get the following: "Error - 50204 occured at DAQmx Create Channel (AI-Voltage-Basic.vi:1" "Possible reason(s): The specified file could not be opened. The operation could not be completed as specified."

I have tried uninstalling and reinstalling both Labview and NI-DAQmx, seperately and together, and both with and without the board plugged in. The result is the same every time.

I appreciate any help you can offer.

[Izzzzz · Accepted solution]

Hello steve_mcgie,

When a device shows up as another device or has an incorrect name (your 6255 showing up as a PXI device) it usually means there is a Measurement & Automation Explorer (MAX) database error.  I would like for you to go through the following steps to clarify the error and help resolve this issue.

1. Have you attempted to take a measurement using the MAX Test Panel or Create Task. This can be done by clicking on the test panels or create task option show in the picture below. Please take a measurment and see if you get the same error (50204).
2. 
3. Could you post a picture of your windows device manager and your MAX showing the discrepancy in the name of this device.
4. I would suggest upgrading your version of NI-DAQmx from 8.7 to 9.3 in order to upgrade MAX and possible resolve the issue. Please take a look at DAQmx 9.3 along with the readme which states that is compatible for you Operating System, version of LabVIEW, and signal express. If you do not wish to install a new version of DAQmx please take a look at number 5 below.
5. To remove the MAX database corruption please take a look this Knowledge Base Article.  

Regards,

Izzy O.

Applications Engineer

National Instruments 

[steve_mcgie]

Upgrading to DAQmx 9.3 seems to have resolved the issues, and I can now get reliable recordings from the test panel, Signal Express, and my custom scripts.

Thank you very much for your reply.