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曹石松
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樓主  發(fā)表于: 2016-03-30 12:55
我需要模擬蠻量輸入，我打算用plc加上模擬量輸入模塊經(jīng)行轉換�？墒锹�(tīng)人說(shuō)模擬量傳輸容易干擾，說(shuō)用232通訊。我是有兩個(gè)問(wèn)題：1、我的方案可以嗎，我要求精度蠻高的。2、通訊是怎么用，通訊如何實(shí)現，和模擬量輸入有什么關(guān)系，通訊是外部的模擬數據可以直接被讀取嗎？還是外部設備和模擬量模塊通訊再轉換最后給plc。
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