Open Process Automation for owner-operators Build owner control across the automation lifecycle

Open Process Automation gives an owner a standards-based path for changing lifecycle control boundaries: how applications are preserved, how components are replaced, how suppliers compete, and how the integrated system is supported over time. The business case should be based on the facility's lifecycle economics and operating requirements rather than assuming that an open architecture automatically produces savings.

The strongest decision point is usually before a major automation lifecycle event such as DCS modernization, obsolescence remediation, a new unit, significant expansion or another funded control-system change. Starting before architecture and procurement decisions are fixed allows the owner to compare lifecycle alternatives rather than trying to introduce openness after the system has already been selected.

A first deployment should be large enough to test the architecture, supplier boundaries, IEC 61131 applications, integration model, verification methods and lifecycle workflows that matter to the broader program, but contained enough to isolate risk and produce reusable evidence. The appropriate scope depends on the owner's modernization need and the uncertainties the investment decision must resolve.

Define the target architecture, applicable requirements, supplier and integration responsibilities, interface boundaries, application ownership, cybersecurity requirements, verification basis, handover assets, support model and intended replacement boundaries. Product selection should follow those requirements rather than define them.

No. Product certification provides evidence for the exact product, version and evaluated certification scope. The owner still has to define the system architecture and demonstrate interoperability, application behavior, cybersecurity, resilience, recovery, acceptance and lifecycle manageability for the assembled project.

The owner should retain authority over the target architecture, required interfaces and replacement boundaries, application and lifecycle objectives, acceptance of deviations and residual risk, and custody of the accepted source, configuration, credentials, evidence, recovery assets and change history needed to operate and evolve the system.

The handover baseline should include the accepted as-built architecture, exact product and version inventory, IEC 61131 application source and dependencies, configuration and deployment assets, interface records, requirements and verification evidence, backup and recovery assets, credentials and licences, known defects, support responsibilities and lifecycle procedures.

Test the operating consequences of change. The owner should be able to maintain applications, recover the system, change suppliers, replace obsolete components and qualify new technology through controlled interfaces and regression evidence without unnecessarily redesigning unrelated parts of the architecture.