Hi,

Does anybody have instructions for importing a root certificate into WinCC?

I have been referencing this document: Notes for Secure PLC Communication with TLS Protocol on the SIMATIC S7-1200/S7- 1500 Channel

https://support.industry.siemens.com/cs/ww/en/view/109798498

At the bottom of the document is the following note: 

I am working on a large plant with multiple PLCs and a multi-server WinCC project. I assume that once the root certificate has been imported into WinCC, individual PLC certificates will not need to be imported via the AS Symbols method as all PLC certificates will be trusted?

Best regards,

Biscuit

Hello IcedVoVo

as I know (I´m not 100% sure) you ALWAYS have to use the WinCC Export Tool in TIA Portal /WinCC, not only for Tags but for the Certificate.

you cannot do the certificate transfer in the current version manually in WinCC. You need the Export Tool to do so.

So you have to manage to integrate your Certificate in the PLC project and then do the export and open it in WinCC to integrate the certificate to your WInCC project.

But If you are not sure you can also open a Service Request for an official informatoin about this issue.

Bye Murof