WinCC and Modbus RTU

N

Thread Starter

NgocNam

I have 2 PLCs S7-200 CPU 224 as 2 slaves, and 1 PC as 1 master. I use WinCC V5.1 on PC to control 2 PLCs .

But i can't understand how to the WinCC can send telegrams to 2 PLCs. Can you give me some tutorials about the relation between WinCC and modbus RTU.

Thanks you very much!
 
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