Hi TCC;

     You can read the datum directly from a Com Port. However, you'll need to then parse out the data stream via PowerScript & then populate the DW that way.

Example

Example2

HTH

Regards ... Chris

You can't directly access a com port from a datawindow. You'll need to write code on a button, or other event, to pull data from the device. If you're lucky, the data exchange will be in text and not binary. If it's in text, you'll be able to do all the work from within PB script with relative ease. If it's in binary, you'll need to use BLOBs, or other specially formatted data structures (and it may be easier to write in a diff language and call a DLL function).