Hi all,

I have a doubt about what kind of protocol I need to use to establish the communication.

My S5 CP is CP1430 TF-0TA1 and in "From S5 to S7" manual saying that I need to use ISO transport protocol, but when I set ISO transport in NetPro apperars an erro mensage.

Someone knows if can I use ISO TCP protocol or other way to set this communication? 

P.S.: My network is ethernet via Sinec H1 and a black box gateway to convert in RJ45 and I will send and recieve datas from S5 to S7 and S7 to S5 

Hello Gustavo;

The ISO connection is a parameter of the CP 443-1, not of the CPU.

Select the CP 443-1 in your rack and try once more. And study the following examples:

Where can you find sample programs and documentation for communication from SIMATIC S5 modules to SIMATIC S7 modules via Industrial Ethernet using the ISO transport protocol?

Hope this helps,

Daniel Chartier