Research on T2 test strategy for nuclear safety-class digital instrument and control system

This paper studies Tricon-based RPS T2 test strategy and the effects of 'Point to Point' self-diagnostic capacity for Tricon platform on T2 test strategy are analyzed. And then, the third-party simulation platform based on VBA is established to verify the test strategy. Through comparing the test strategy with that based on other platform, the paper summarizes the T2 test strategy's advantages and disadvantages and proposes the related improvement measures. The design concepts in this kind of test strategy are also suitable for RPS T2 test which is based on other DCS or FPGA platforms. (authors)