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hwl666
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樓主  發(fā)表于: 2010-12-15 08:36
學(xué)了一段時(shí)間PLC，遇到了下面的問(wèn)題，突然疑惑了，感覺(jué)什么都不懂了，糾結�。�
如下圖接線(xiàn)，程序里X1的常閉觸點(diǎn)
能夠使用嗎？
taozhou85
級別: 探索解密
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1樓  發(fā)表于: 2010-12-15 16:23
這個(gè)，我也遇到過(guò)，有條件的話(huà)拿臺機器試試就明白了

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