Nuclear power plant DCS controller state access system and method

Abstract

The invention discloses a nuclear power plant DCS controller state access system and method, and relates to the field of verification and debugging of a nuclear power plant system. An instruction sending module of the system is used for sending instruction information which includes a storing operation state instruction and a restoring operation state instruction. A clock synchronization determining module determines whether an instruction timestamp is valid. If the instruction timestamp is valid, the instruction is valid, and the instruction information is sent to an instruction executing module. If the instruction timestamp is invalid, the instruction is invalid, and a result is returned to an instruction feedback module. The instruction executing module is used to receive the instruction information to judge whether the type of the instruction information is the storing operation state instruction or the restoring operation state instruction, execute the corresponding operation according to the instruction information type, and return the result to the instruction feedback module. The instruction feedback module maintains an operation state file list according to the feedback result of the instruction execution. According to the invention, debugging resumption caused by interruption can be avoided; the debugging cost can be reduced; and the debugging period is shortened.

Description

technical field [0001] The invention relates to the field of verification and debugging of nuclear power plant systems, in particular to a system and method for state access of a DCS controller of a nuclear power plant. Background technique [0002] The controller is an important part of the nuclear power DCS (Distributed Control System, Distributed Control System) system. The DCS controller is used to collect field device data and execute logic configuration engineering. The logic configuration engineering includes control logic and control algorithm. The configuration engineer configures, compiles, and downloads it to the controller for execution. In the controller operating system, the execution engine of the configuration project runs in the form of a task, which is used to load and execute the control configuration project. [0003] The nuclear power DCS system needs to carry out logic verification and debugging of the sub-system and the whole system of the configurati...

AI Technical Summary

Problems solved by technology

In the logic debugging process of the whole system, multiple controllers are required to continue uninterruptedly from the preset working conditions. data will be lost

At this time, it is necessary to set the test conditions again from the preset working conditions. This process is complex and time-consuming. Repeatedly, it will increase the workload and psychological pressure of the staff, prolong the commissioning cycle, and then affect the factory schedule and project cost of nuclear power DCS.

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