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l1998
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樓主  發(fā)表于: 2008-07-07 16:37
我有條RS422的三菱數據線(xiàn)，電腦也已裝驅動(dòng)。但始終總與PLC連接不上。如何？知道的朋友能否說(shuō)說(shuō)。
raul123
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1樓  發(fā)表于: 2008-08-31 07:14
我也想知道,422與電腦232咋連接,即接線(xiàn)圖

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