I made a brief review on Maxonmotor website and it looks like your device speaks Canopen. If that is the case, you can't communicate it with Due.
Canopen is a high-level protocol for CAN-bus. I would recommend you to contact them to confirm it.
Edit: Other devices like EPOS 2 P 24/5 (378308) have CAN bus functionality but not the one you mentioned (375711).