April 17, 2026 — Yokogawa Electric Corporation has announced that its OpreX Open Automation SI Kit for Open Process Automation (OPA) systems has been certified for conformance with the OPC Unified Architecture (OPC UA) profile of the Open Process Automation Standard (O‑PAS*1), a first in the process industry.
OPA is an initiative of The Open Group Open Process Automation Forum (OPAF) that promotes the adoption of an open, secure and interoperable process control architecture that will enable the flexible combination of devices and software from different manufacturers. The ability to construct systems without being dependent on any one vendor will ensure both flexibility and scalability while promising to hold down costs over the entire system lifecycle.
Granted by the OPC Foundation, this OPC UA certification officially confirms that release 1.02.10 of Yokogawa’s Open Automation SI Kit conforms with the OPC UA client/server communication profile (OCF‑001: O‑PAS Connectivity Framework*2) defined in the O‑PAS standard. Certification for conformance with the O‑PAS OPC UA profile confirms that systems with the Open Automation SI Kit installed can provide standard, reliable communication and data exchange, enabling seamless interoperability between O‑PAS components supplied by Yokogawa and other vendors.
As a key member of OPAF, which consists of 95 companies and other organizations, Yokogawa has carried out multiple OPA-related demonstration projects in collaboration with major oil companies. These efforts — spanning the planning, development, testing and continuous improvement of OPA technologies — have led to this achievement.
Yokogawa will continue to incorporate open and flexible technologies, building on the strengths it has cultivated over the years in industrial automation. By leveraging this certification as a milestone, Yokogawa will further strengthen its products for OPA systems and accelerate efforts toward the practical application of OPA, thereby delivering optimal systems that meet customer needs.
*1 An open standard for process automation control systems developed by OPAF
*2 A connectivity framework layer for handling the flow of information between components through standardized interfaces (communication methods and models). OPC UA is adopted as the communication protocol for control, and an O‑PAS specific information model is defined.
About Yokogawa
Yokogawa provides advanced solutions in the areas of measurement, control and information to customers across a broad range of industries, including energy, chemicals, materials, pharmaceuticals and food. Yokogawa addresses customer issues regarding the optimization of production, assets and the supply chain with the effective application of digital technologies, enabling the transition to autonomous operations. Founded in Tokyo in 1915, Yokogawa continues to work toward a sustainable society through its 17,000+ employees in a global network of 128 companies spanning 62 countries.
