Research on Secure Data Transmission Technology for Communication Network Based on PLC
With the wide application of industrial control system,the communication network of Programmable Logic Controller(PLC)is facing the severe challenge of data transmission security.In order to ensure the confidentiality,integrity and availability of key data,this paper puts forward a technical scheme of secure data transmission in communication network based on PLC.The scheme comprehensively applies encryption technology,authentication and access control mechanism and anomaly detection technology to build a three-dimensional security protection system from three levels:data,communication and behavior.Through experimental analysis,the effectiveness of the proposed scheme is verified,which provides feasible technical route and practical guidance for the safety protection of industrial control system.
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