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Santosh Kumar G

Mar 23

CANopen supports only 127slaves, Can it be increased to 255 slaves?

In my application, we have 255 slaves it needs to be communicated with CANopen protocol.

but CANopen in Rugged board supports only 127slave..

1 answer0 replies

Ganesh K

Mar 26

CANopen node ID size is 7-bit, this limitation restricts the amount of devices on a CANopen network to 127 nodes, to add 1more bit to the size of node id, you must hack(understand the packet format, add unused 1-bit to node ID) the CANopen library.