OPC UA security

OPC UA certificate storage locations

The table defines where OPC UA certificates are stored.

Microsoft certificate store location Certificate description
Emerson UA Certificate Store Certificates configured in DeltaV Explorer
Emerson UA Applications The workstation OPC UA server's application certificate
Emerson Trusted UA Applications OPC UA client certificates trusted by workstation OPC UA servers
Emerson Trusted UA Users User certificates trusted by workstation OPC UA servers
Trusted Root Certification Authorities

Certificates issued by certificate authorities (CAs). These certificates have an CA-OPCUA prefix and can be used for https connections.

Folder location Certificate description
\DeltaV\Code\DVData\OPCUA\Server\CertificateStores\ Emerson Trusted Issuers\certs Issuer certificates trusted by workstation OPC UA servers