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wsgily
壓力與動(dòng)力俱存
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樓主  發(fā)表于: 2011-04-29 18:37
小弟現在遇到一個(gè)問(wèn)題就是用三菱PLC控制松下伺服控制拉薄膜,在薄膜上每隔一段距離(大概20CM)就有一個(gè)黑塊,通過(guò)一個(gè)光電傳感器來(lái)檢測此小黑塊從PLC的X1輸入,要求將兩個(gè)小黑塊之間的薄膜切下來(lái),輸出用Y0,現在如何寫(xiě)PLC的指令啊,最頭疼的是這個(gè)薄膜經(jīng)常換,小黑塊之間的距離會(huì )變,之前我都用PLSR這個(gè)指令用發(fā)脈沖的方法,該怎么寫(xiě)程序啊,
木獬
花看堪折直須折,莫待無(wú)花空折枝。
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1樓  發(fā)表于: 2011-04-30 11:52
那你就用速度模式控制啊,色標光電感應到就一停一切。

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