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介绍一种用公共电话线网络进行远程通信的集散式工控机系统,阐述了该系统的硬件配置及远程通信软件编程,讨论了集散式系统的一般工业网络及调制解调器的工作原理等问题。
This paper introduces a distributed industrial control computer system that uses the PSTN network to communicate remotely. It also describes the hardware configuration of the system and the programming of the telecommunication software. It also discusses the general industrial network of the distributed system and the working principle of the modem.