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felix779
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樓主  發(fā)表于: 2011-09-21 21:18
求教有關(guān)s7-200與三墾變頻器VM05通信的實(shí)例和程序，我們用的變頻器都是三墾的，不知道如何通過(guò)RS485進(jìn)行通信。
xcaq123
工業(yè)自動(dòng)化
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1樓  發(fā)表于: 2011-11-08 13:36
專(zhuān)業(yè)編寫(xiě)S7200 與變頻器485通訊程序
550557091
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2樓  發(fā)表于: 2011-11-08 17:29
1樓，編寫(xiě)程序   多少金/段落？

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