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龍朝暉
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12樓  發(fā)表于: 2014-03-07 08:42
DC24V短路
xubaolin
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13樓  發(fā)表于: 2014-03-07 09:20
6樓的說(shuō)法是對的，PLC內部的開(kāi)關(guān)電源有接觸不良的現象。
xiexonghui
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14樓  發(fā)表于: 2014-03-15 11:36
1可能是plc電源問(wèn)題.2輸入的傳感器，光電開(kāi)關(guān)線(xiàn)有短路，接地現象
yangxiliang
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15樓  發(fā)表于: 2014-03-18 21:38
電源問(wèn)題，我碰到過(guò)，弄了好幾天
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