Linuxcnc and Profibus

Also I just noticed that your cpv module looks more modern than the one i used.
Can you check the part number on yours please?
ie something like CPV10-GE-DI02-8

And also try with the DIP switch "8" set to OFF.

Edit:
I have run out of time for today.

Found the issue: cpv dio1 uses different gse than dio2....took me until 2am this morning. All components are working now too (16input+8output). I will share gse and config later today.
By the way usb to rs485 seems to work ok. When triggering inputs slight delay is recognizable.Baudrate could be higher, but I will try with comport to rs485 later today if there are higher baudrates possible. Pci to rs485 could be an option, but I have no free slot.

Great, glad you got it working.

Short update: I was able to achieve 3mbit with an usb to rs485 adapter with ftdi 232rl chip

Next step is to use an ft2232h with an proper rs485 converter to get so 12mbit. I know its over usb and pyprofibus is not realtime due to userspace, but for adding more profibus slaves baudrate cant be high enough. A real bummer would be to implement profibus to the uart of a mesa card, but my capabilities in this direction are really limited.