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曹石松
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樓主  發(fā)表于: 2015-08-14 09:20
二線(xiàn)制接近開(kāi)關(guān)，plc拉電流和灌電流分別怎么接，信號又是怎么控制
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lqm003
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1樓  發(fā)表于: 2015-08-25 12:54
二線(xiàn)式接近開(kāi)關(guān)使用最方便，和普通開(kāi)關(guān)方法一樣。需注意一點(diǎn)，電壓必須與PLC一直。
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