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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？
a403544779
真想把生活中的所有煩心事都寫(xiě)進(jìn)梯形圖，讓它們自動(dòng)完成。
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1樓  發(fā)表于: 2010-12-17 15:30
[img]http://www.28sp.com/news/UploadFile/200803/24/17277393.jpg[/img]

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