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hb07303
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樓主  發(fā)表于: 2015-09-05 22:01
公司有德國的纏繞膜機，最近上傳了里面的程序，發(fā)現子程序中用了sm0.0的常閉觸點(diǎn)控制v81.2到v81.5的線(xiàn)圈。平時(shí)使用s7-200時(shí)都是使用的sm0.0常開(kāi)，這里用了sm0.0常閉有什么特殊作用嗎？求教
堅持不放棄 成功就會(huì )近一點(diǎn)
unorder
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1樓  發(fā)表于: 2015-09-14 11:42
見(jiàn)識多多。

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