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hnwqf
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樓主  發(fā)表于: 2010-09-26 13:48
如何用PLC計算流量計的數據，然后達到一定流量后控制電磁閥工作。是用流量計的4--20mA輸出好呀，還是用脈沖輸出好？
liuliangdt
liuliangdt
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1樓  發(fā)表于: 2010-09-27 11:50
根據系統的工作要求選擇模擬或者脈沖。

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