Hi Torben,
the error code means:
The specified device is not a National Instruments product, the driver does not support the device (for example, the driver was released before the device was supported), or the device has not been configured using the Measurement & Automation Explorer.
Commonly this error occurs if you pick the wrong device number in the frontpanel of the datalogger. Open Measurement & Automation Explorer and verify that your board actually hasd the number that was chosen on the frontpanel.
Ingo Schumacher
Systems Engineering Manager CEERNational Instruments Germany