Question:
Can the PCB 0151800421B of MRV SII(8-12Hp) output the Modbus protocol? Can the central controller protocol be output? And which port can output the above protocol?
Answer:
Yes,through the CN31 of the PCB,you can use the protocal by modbus and centralized by changing the dip switch.
we can connect the YCZ-A004 to the CN31 of the PCB, and we also need to change the dip switch like in the above picture. we need to change 15-9-2 to 1. choose the central wired controller protocol.
