基于互联网尚奇网络的设计

Abstract--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.
Keywords: M&C Network Node, Internet, LonWorks, heterogeneous PLC, serial adapter, Ethernet adapter