Management system for a control system, gateway device, server device, management method, gateway method, and management process execution method

摘要

A gateway transmits a communication switch request to a communication control unit by HTTP communication. The communication switch request serves to switch connection with a data center from HTTP communication to WebSocket communication. The communication control unit, when the communication switch request is received from the gateway, switches communication with the gateway device to WebSocket communication. A mobile terminal transmits a management execution request requesting execution of a management process of a PLC, to the data center. The communication control unit transmits a session establishing request requesting establishment of a session with the PLC, to the gateway by WebSocket communication based on the received management execution request.