Security operation and maintenance instruction blocking device and method based on industrial control system
An industrial control system and instruction technology, applied in general control systems, control/adjustment systems, test/monitoring control systems, etc., can solve problems such as equipment failures, network security accidents, losses, etc., to strengthen control and improve safety management Performance, the effect of good scalability
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[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0034] Please refer to figure 1 with figure 2 , the present invention provides a safety operation and maintenance instruction blocking device based on an industrial control system, which can operate and maintain one or more industrial control equipment. Information such as specific protocols, ports, and affiliated stations can be maintained in the database of the industrial control equipment memory in advance.
[0035] The safety operation and maintenance instruction blocking device of the present invention includes: an operation and maintenance terminal and a portable operation and maintenance gateway, the operation and maintenance terminal is connected with the portable operation and maintenance gateway through TCP / IP protocol communic...
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