The Logic Function Verification Method of the I&C Equipment in Nuclear Power Plant Based on VBA and LABVIEW
In the testing of I&C equipment in nuclear power plants,verifying the conformity of its logical functions with design requirements is crucial.However,the current verification process relies heavily on manual operations,including the writing of test scripts,simulation of logical functions,and data recording,which leads to insufficient automation and low testing efficiency.To address this problem,this study combines the testing technology with the virtual instrumentation technology based on the EXCEL-VBA and LABVIEW software development platforms.A logic testing system has been designed and developed.This system possesses various functions,including random generation of test scripts,automatic configuration of signal addresses,realization of TCP/IP and MODBUS communication,execution of tests,generation of data reports,and judgment of test results.This article comprehensively elaborates on the construction and implementation of the logic testing system from three dimensions:overall system design,hardware system design,and software system design.Compared with traditional testing methods,this study shows that the newly developed logic testing system can significantly improve the testing efficiency and accuracy of verifying the logical functions of the I&C equipment of nuclear power plants,while reducing testing resource inputs and human errors.It brings new solutions and ideas to the field of I&C equipment testing for nuclear power plants.
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