Invensys' Triconex Controller Is Approved for Use in Nuclear Power Plants

The United States Nuclear Regulatory Commission has certified Invensys Operations Management's Triconex Tricon version 10 controller as safe to use in nuclear power plant instruments and control applications.

In a Safety Evaluation Report (SER), the NRC indicated that in U.S. nuclear power plants and U.S. Department of Energy facilities that require licensing or oversight by the NRC, the latest version of the Tricon controller can now be used in safety-related (1E) applications.

The Triconex Tricon version 10 controller is the first controller from an automation vendor to achieve such certification from the NRC.

The Tricon controller's state-of-the-art fault tolerant, triple-modular-redundant—TMR—architecture removes single points of failure by integrating three isolated, parallel control systems and extensive diagnostics into one system. The system uses two-out-of-three voting to provide high-integrity, error-free, uninterrupted process operation. True TMR is the only such technology certified by the NRC. The Commission's SER encompasses the Tricon controller's software and hardware, including termination panels, chassis, power supplies, main processor modules, communication modules, input/output modules and interconnecting cabling.

Learn more about the Tricon controller or Invensys solutions for the nuclear industry.

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