OPC UA FX specifies a standardised Information Model and connection model for AutomationComponents, providing timely data delivery, security, and functional safety. Interactions addressed by UAFX include Controller-to-Controller, Controller-to-Device, Controller-to-Compute, Device-to-Device, and Device-to-Compute. This release of the specification includes Controller-to-Controller interactions. Other interactions will be included in future releases.

Figure 2 shows the scope of UAFX relative to the overall OPC UA integration patterns. UAFX extends the existing OPC UA communication solution (e.g., OPC 10000-14 and OPC 10000-100) to address industrial automation requirements in the discrete manufacturing and process industries providing vendor-independent end-to-end interoperability of field-level devices for all relevant industrial automation use cases.


Figure 2 – OPC UA FX connectivity use cases