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hbzw198
非標自動(dòng)化控制
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樓主  發(fā)表于: 2012-09-17 12:59
兩線(xiàn)磁性開(kāi)關(guān)，PLC輸入共陽(yáng)極，磁性開(kāi)關(guān)，進(jìn)線(xiàn)端+除繼電器，串電阻的方式外，還有什么方式轉換高低電平呀！那位大俠指點(diǎn)一下，Thanks!
vitality8
沒(méi)有最好，只有更好！因為專(zhuān)業(yè)，所以更好！
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1樓  發(fā)表于: 2012-09-18 19:06
光耦
藍景自動(dòng)化

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