Invensys Operations Management on July 23 said version 10 of its Triconex Tricon controller has been approved for use in safety-related nuclear power plant instrument and control applications by the U.S. Nuclear Regulatory Commission (NRC).
In a Safety Evaluation Report (SER) dated April 12, 2012, the NRC indicates that the latest version of the Tricon controller can now be used in safety-related applications, such as reactor protection systems, in U.S. nuclear power plants and U.S. Department of Energy facilities that require licensing or oversight by the NRC.
The Tricon controller’s 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 NRC’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.
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