Abstract: The PLC (Programmable Logic Controller)-based I&C safety system used in the operating nuclear power plants has the disadvantages of a CCF (Common Cause Failure), high maintenance costs and quick obsolescence, and then it is necessary to develop the other platform to replace the PLC. The FPGA (Field Programmable Gate Array)-based I&C (Instrumentation & Control) safety system is safer and more economical than the PLC-based I&C safety system. Therefore, the FPGA-based I&C safety system will be able to replace the PLC-based I&C safety system in the operating and new nuclear power plants to benefit from its safety and economic advantage. The FPGA-based I&C safety system is being developed and verified by applying the related requirements to perform the safety function. This paper describes the requirements, implementation, verification, software development tools, and hardware qualification of the FPGA-based I&C safety system in the nuclear power plant.

Keyword: FPGA; I&C safety system; V&V