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PMM 400-PMM 500; Modbus RTU 4-Wiring to NMC interface board

Published date: 10 October 2019

Modbus RTU 4-Wiring to NMC interface board

Product line:
PMM 400 / PMM 500

PMM 400 / PMM 500

Customer wants to connect to the NMC interface board instead of Modbus RS45 connector on the outside of the communication box.  The installation/operation manual does not give details on how to connect 4-wire to the NMC interface board.


See wiring diagram below.


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