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A new industry Internet system structure, “M&C Network Node” is presented and designed to construct an M&C network based on the Internet. The “M&C Network Node” has powerful communication and control abilities referring to the wide and complicate M&C network. By using the largely invisible and highly reliable field bus LonWorks, all the local M&C stations installed in the industrial field are integrated into one “M&C Network Node”. For connecting the heterogeneous PLC instruments to the LonWorks network a serial adapter (RS-232 standard) is designed. The adapter can be seen as the internal communication interface of the “M&C Network Node”. The Ethernet interface of the “M&C Network Node” is realized by an Ethernet adapter, which is also designed. The hardware components and the two kinds communication interfaces of this “M&C Network Node” are described in detail in this paper.
A new industry Internet system structure, “M & C Network Node ” is presented and designed to construct an M & C network based on the Internet. The “M & C Network Node ” has powerful communication and control abilities referring to the wide and complicate M & C network . By using the largely invisible and highly reliable field bus LonWorks, all the local M & C stations installed in the industrial field are integrated into one “M & C Network Node”. For connecting the heterogeneous PLC instruments to the LonWorks network a serial adapter (RS -232 standard) is designed. The adapter can be seen as the internal communication interface of the “M & C Network Node”. The Ethernet interface of the “M & C Network Node” is realized by an Ethernet adapter, which is also designed The hardware components and the two kinds of communication interfaces of this “M & C Network Node ” are described in detail in this paper.