1. M510/B310 CANopen optional interface
2. Connection and cabling
3. Topology

Topology

All devices are connected in parallel. The bus must be terminated at each end with a 120 ohm termination resistor. CANopen limits the number of devices per network to 64.

The maximum possible network size is limited by the data rate. For sample, at 1 Mbit/s a network size of 20 m is possible, at 50 kbit/s a network size of 1000 m. At lower data rates the network size can be increased with repeaters. Repeaters also enable the configuration of tree structures.