Sir,

I have one IM 151-8 PN/DP CPU. if I want to take 100 S71200 PLC( Few Bytes data on IM 151-8 PN/DP CPU. While reading came to know that with IM 151-8 PN/DP CPU as IO controller and S71200 as IO device can be taken for data exchange.

Please let me know that there is any limitation for controller to take IO device on Profinet or any data exchange limitation.

Hello,

from the technical data of the PLC:

https://support.industry.siemens.com/cs/ww/en/pv/6ES7151-8AB01-0AB0/td

max number of IO-Devices : 128

max Data on PN: 1600 byte

Regards

Christoph