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chenpingyg
機械是柱石,電氣是靈魂.
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樓主  發(fā)表于: 2010-07-18 13:27
圖片：
設備是這樣的，皮帶A和皮帶B兩條皮帶，皮帶A是電子皮帶秤，皮帶B是加料皮帶，流程就是物料經(jīng)過(guò)皮帶秤A，再到皮帶B，皮帶A根據檢測到的實(shí)時(shí)重量輸出4-20MA的模擬信號，皮帶B根據皮帶A的信號控制加料閥的大小，皮帶A到皮帶B需要3分種。
怎樣做這種延時(shí)？
也就是說(shuō)采集到的信號3分鐘以后再使用。
[ 此帖被chenpingyg在2010-07-18 13:48重新編輯 ]
自己的事情自己做.
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1樓  發(fā)表于: 2010-07-18 18:16
把采集來(lái)的模擬信號先經(jīng)過(guò)轉換能數字信號.后存入寄存器..等三分鐘后讀取...讀取完了后復位寄存器不就可以了

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