本文闡述了利用PLC 和組態王6. 52 來實現一個分布式的長隧道監控系統。詳細闡
述了系統的結構, 硬件設計及通訊方式的構成, 其中使用了CAN 通信技術來實現多個PLC
之間的分布式通信，實現PLC 與上位機用以太網方式通信，軟件控制的部分采用了組件開發技術，將開發的組件運用到組態軟件中來縮短開發的時間。該系統已經在武漢市閱馬場隧道工程中投入運行，應用效果良好。
關鍵詞: PLC; 組態軟件; 分布式通信; 組件開發
Abstract：In this paper, it set forth how to design a long distributed tunnel stakeout and
controlling system by taking use of PLC and Configuration software 6.52.In detail set forth the
structure of system, designing of hardware and model of communication, use CAN
communication technique to carry out some PLC distributed communication between them,
implement communication between PLC and Host Computer in Enternet, the part of software
controlling adopts Component development technique，use these Components in Configuration software for shorten the time of development. This system has run for several months in Wuhan Yuemachang tunnel project, the running status is good.
Keywords: PLC; Configuration software; distributed communication; Component develop