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有充足的理由说：PLC在中国已成为工业控制的一种适用技术。因此，PLC、软PLC以及IEC 61131-3的发展，无可争辩地成了十分令人关注的事情。
IEC 61131国际标准在中国
1992年以后，可编程序控制器国际标准IEC 61131的各个部分陆续公布施行。中国的工业过程测量和控制标准化**按与IEC国际标准等效的原则，组织翻译出版工作。于1995年12月29日以GB/T 15969.1,15969.2,15969.3,15969.4颁布了PLC的国家标准。该标准只涉及IEC 61131的、第二、*三和*四部分，没有纳入1995年以后出版的*五部分通信、*七部分模糊控制编程软件工具、*八部分IEC 61131-3语言的实现导则。
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