Hi, 

I need to communicate S7-200 Smart PLC with ET 200s PLC on Ethernet. Can any one tell me how to do that.

I am able to communicate 2 S7-200 PLC on Thernet but dont know how to do it with ET 200s.

Thanks in advance.

hi Arya2792,

ET200S CPUs are like S7-300, so this FAQ may help you:

How do you configure an S7 connection for data communication between an S7-200 and an S7-300 or S7-400 on the Industrial Ethernet?

 hope this helps,

regards,