UA Certificates

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As a part of UA security mechanism, UA server and UA client transfer their own certificate to other side when a client wants to connect to server.

In both sides, certificates should be marked as TRUSTED.


Step 1: Client wants to connect to a UA server

Here, client is Gelecek OPC UA Connector or Gelecek OPC Client Components.

Server certificate  approval form appears on client side. You need to approve that this certificate is to be TRUSTED or REJECTED.

opc client sertifika uyari


Click Trusted to make connection.


You will see error message on client side:

opc client  sertifika hata mesaj


You will see on server side that cetificate of client is Rejected:


opc server sertifika rejected

Now you need to mark certificate of client as Trusted:

                opc client sertifika trusted




Step 2:Client tries to connect again

This should be a successful connection.


Location of certificate file

On client side certificates of servers are here:

    opc client sertifika yolu