Abstract

Taking the DCS modification project of I&C system in the nuclear power plant as an example, this paper introduces a solution to replace the traditional I&C system with DCS (or digitization technology) from the aspects of function optimization, power supply design, I/O channels design, HMI, cabinet layout, etc. The modified I&C system retains all the functions of the original system, and greatly improves the reliability, interactivity, scalability and convenience in maintenance of the system.

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