I have a Baumuller model BM-4543 with a BUS-6M control module and I need to be able to test it. There is no data or manual about these on the Baumuller Web site. The module doesn't seem to communicate with WinBass or WinBass II via X23 (RS232). It seems to be a drive manufactured by Baumuller for a specific function. I was wondering if anyone out there had experience with these?