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Communication Between Unitronics PLC V560 and rectifier

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I am trying to communicate V560 with Rectifier through modbus RS485. 

PLC pin Details:-


Rectifier Pin details:- pcr01 protocol communication Ver 3_23 EN.pdf

protocol Support:-Mod bus ASCII




                                                                                                  fig 1.0

Please Reply Following Points:

1. Is it possible to communicate Unitronics PLC with Rectifier.

2. If Possible  how to connect between PLC and Rectifier.(PLC RS485 2 wire and Rectifier rs 485 4 wire ).

3. If I short TX+ to RX+ and TX- , RX- and connect A+ and A- terminal to PLC.

    is it okay this way?

4. Shall i need to use converter half duplex to full duplex .

5. Rectifier is Supports only MODBUS ASCII.

    Is it possible to connect as shown in  fig 1.0

Please reply with all possible solution.


pcr01 protocol communication Ver 3_23 EN.pdf

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