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likuoqian
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樓主  發(fā)表于: 2009-02-14 11:46

           我的組態(tài)王軟件的溫度數據間歇性的跳變,隔一分鐘左右吧就跳一次,上下十來(lái)度的波動(dòng)。而且電源沒(méi)問(wèn)題,傳感器也沒(méi)有問(wèn)題。PLC的A/D模塊只要錯誤一閃他就跳。換了好的A/D模塊也不行。哪位大哥給指點(diǎn)下哈。謝謝哈。!
sjm213
有小知識,無(wú)大學(xué)問(wèn)。
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1樓  發(fā)表于: 2009-02-14 11:59
這是模擬量的輸入問(wèn)題了,最好搜索下模擬量接線(xiàn)的重點(diǎn)注意事項,接線(xiàn)正確接地正常屏蔽規范后再看數據是否仍有跳動(dòng)。
likuoqian
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2樓  發(fā)表于: 2009-02-16 11:35
謝謝了。

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