OPC-UA Implementation

OPC-UA architecture

The OPC-UA architecture covers the OPC-UA server, the OPC-UA client, the information model, the address space, the subscription, the security, the transport, and the discovery.

OPC-UA security

The OPC-UA security covers the authentication, the authorization, the encryption, the integrity, the audit trail, the certificate management, and the security policies.

Integration with MES and historian

The OPC-UA integration with the MES and the historian covers the data acquisition, the event notification, the historical access, the alarm and condition, and the methods.

How to use this page

Use this OPC-UA Implementation page as a planning checkpoint before vendor selection, architecture review, validation scoping or implementation sequencing. The strongest next step is to compare the guidance with your current SOPs, system inventory, batch records, data flows and QA review routines so the discussion starts from evidence instead of assumptions.

Evidence to prepare

For OPC-UA Implementation, prepare the records, owners, risks and decision criteria linked to opc-ua architecture, opc-ua security, integration with mes and historian. Useful evidence includes current process maps, interface lists, audit trail expectations, exception workflows, data retention rules and the business reason for changing the current operating model.

Frequently asked questions