Method for realizing data association and communication among programmable logic controllers (PLC) of different types

A type of data interconnection and type technology, applied in the field of data communication, can solve the problems of difficulty in obtaining database information, increasing costs, and difficulty in obtaining basic layer automation information in the database, achieving the effects of transparency and sharing, improving efficiency and reducing costs
CN102497360AInactive Publication Date: 2012-06-13SHANDONG IRON & STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG IRON & STEEL CO LTD
Publication Date
2012-06-13
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a method for realizing data association and communication among programmable logic controllers (PLC) of different types. The method comprises the following steps of: 1) acquiring communication message formats of the PLCs; 2) resolving an input side PLC data packet; 3) transcoding the resolved data of the PLC data packet; and 4) packaging and writing the data. By the method, a data association and communication function is realized among various PLCs, various databases and various systems, so that the aim of data sharing is fulfilled, and the transparency and sharing of the data are realized. Simultaneously, problems about the data association and communication among different PLC systems in industrial automatic control are solved, and a powerful data support is provided for the promotion of quick development of automation and network technologies, the cost reduction and efficiency improvement of enterprises and the realization of enterprise globalization and system benefit maximization. By the method, not only the data association and communication among the PLCs of the different types is realized, but also cost is reduced.
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Description

technical field

[0001] The invention relates to a data communication technology, in particular to a method for realizing interconnection and intercommunication of different types of PLC data. Background technique

[0002] Today, with the vigorous development of industrial automation control, production line management, and enterprise management informatization, there are various types of detection, control, and communication equipment, and the communication protocols in the system are also different, especially PLC, which is widely used in industry. Various brands of PLC system manufacturers keep their communication protocols secret for various purposes, which directly makes it difficult for the management database to obtain basic layer automation information, and it is more difficult to obtain cross-system database information, which not only hinders automation and The rapid development of network technology has increased costs. Contents of the invention

[0003] In view...

Claims

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