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liuri1992
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樓主  發(fā)表于: 2017-02-17 13:14
接近開(kāi)關(guān)接在PLC上。如果接近開(kāi)關(guān)兩個(gè)電源線(xiàn)異常斷開(kāi)，PLC就報接近開(kāi)關(guān)異常，程序該怎樣編寫(xiě)（要不要加其他硬件？？）。


]用的是三菱Q系列plc。（大神賜教）[s:39
zhengf1989
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1樓  發(fā)表于: 2017-02-21 20:51
用常閉的接近開(kāi)關(guān)就好了，一般限位和急停按鈕用的都是常閉的，常閉不通時(shí)報警停機總比電機旋轉超限位，出現事故好。

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