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china_1ysz
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樓主  發(fā)表于: 2008-12-02 20:51
請問(wèn)各位，在現在的工業(yè)控制中，有哪些比較常用的數據通訊協(xié)議？
guo163
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1樓  發(fā)表于: 2009-02-18 09:54
232 485 最常見(jiàn)。。。。。這不是協(xié)議

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