Welcome to the fun!
The .xdf is basically the road map for the .bin! They have to match or you will have odd readings or none at all.
Read your PCM and get the .bin id! Then find a matching .xdf file and .adx file for logging.

Note: Not all .bins have a matching .xdf, so you may have to find one that is closest to your configuration and go from there.
There are dozens of how too and why's in this forum.

Lot's of helpful folks on this forum.

Louis