Hello,

I'm confused about communication module RS232...

I have existed project read data from RS232 module by MB_MASTER, as the photo attached and everything is okay (Read/Write).

Anyway

1- I don't know how RS232 have MB_ADDR and DATA_ADDR, i think no need in rs232 ....!!! 

2- I need a program to send data from my PC  to s7-1200 CPU, And I can set MB_ADDR and DATA_ADDR in the configures.

Thanks a Lot.

follow up question published by DINESH K J is transferred to the existing thread Simatic manger to RS232 to other PC with Modbus Poll/slave.

Best regards
CS Moderator