CANopen Communication Module DVPCOPM-SL Hardware Connection: Node 1 Master CANopen Node 2 RS-485 RJ12 IFD9503 VFD-B Software operation: Add a master and slave in the CANopen Builder software as below: DVP-PLC Operation Manual 32 DVPCOPM C AN+ SH LD C AN- GN D DVP28SV RUN STOP