Delta PLC Modbus Communication With Delta Drive

PLC Program for Delta Modbus / RS 485 Communication :-

First of all we have to decide the communication Protocol settings , in this case we are using

7, N, 2, 38400, ASCII. To send a frame in delta plc we use MODWR Instruction and we have to trigger the bit M1122 to send the frame.

Also we need to read some data from Drive , for example then we have to use the MODRD instruction. We have made a sample program for this. All the comments are written in the program and you can understand it easily. The slave address we have used in the plc logic is 2.

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