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ly_16
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樓主  發(fā)表于: 2008-07-11 20:55
現場(chǎng)的溫度儀表的測量范圍是-40到120度，輸出對應4到20MA。
AB的模擬量板選擇是4到20MA，對應是0-4095
程序中計算式是（160＊N）/4095－40
通過(guò)計算式算出的值與現場(chǎng)的儀表相差6度左右
不知是什么原因？如何解決？？？
weilller
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1樓  發(fā)表于: 2008-07-15 16:43
對
上面說(shuō)的正確
zhgt
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2樓  發(fā)表于: 2008-07-15 22:17
樓上說(shuō)的有道理

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