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樓主  發(fā)表于: 2010-10-09 16:23
問(wèn)一個(gè)很菜的問(wèn)題。。。我用PLC300采集多個(gè)傳感器信號，傳感器配變送器，之后信號進(jìn)PLC還要進(jìn)行其他的信號調理嗎，比如濾波等等。。。期待大蝦的回答，謝謝。。。
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1樓  發(fā)表于: 2010-10-12 15:28
具體問(wèn)題具體對待。要知道信號并不存在標準的電壓/電流等級。如0-5V的實(shí)際值可能是0.5-4.9V。這時(shí)你剛好需要使用下限值，則需要在程序上進(jìn)行適當的“調理”，才能達到要求。

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