Hi All!

I've got the same question: what is the way to connect two OS (WinCC Redundancy) with S7-400H (with CP443-1) via Ethernet?

Our customer says that also the ethernet switch should be redundant. System with only one ethernet switch is not allowed.

And I`m looking for the way to 1) exclude ethernet loops 2) make redundant switches equal.

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Split from 400H Redundant with WINCC Redundant.

Hello Adrey_Afonin

I know oly the Information from the Support Pages:

https://support.industry.siemens.com/cs/ww/en/view/16667714

https://support.industry.siemens.com/cs/ww/en/view/66644434

If you need a reliable statement to your specific usecase you should contact your Siemens Presales Support in your region.

Bye Murof

Thank you!

Unfortunately, it is not the answer for my situation.

I understand that question is not correct. But customer wants (see on picture) and says that there is a REDUNDANT Ethernet. And each OS should be equipped with TWO CP1623. And I can not argue - because I've got nothing to show them except "How do you configure a fault-tolerant S7 connection for a user application via Industrial Ethernet with the SIMATIC NET PC software?"/

Hello Andrey_Afonin

these kind of questions are quite special. I think there are not so many specialists in what you are gonig to do here. Perhaps you find someone but if you need a reliable Information you should contact the Siemens Support or even Presales Support.

Bye Murof