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文章对西门子S7-200系列可编程序控制器多机系统的数据通信方式、通信程序结构等进行了讨论,并给出已调试通过的程序。
The paper discusses the data communication mode, communication program structure and so on of Siemens S7-200 series programmable logic controller multi-machine system, and gives the program which has been debugged.