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sunnyraccoon
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樓主  發(fā)表于: 2015-10-21 14:43
各位高手，小弟用S7-200做一個(gè)系統，其中模擬量輸入用EM235模塊。其中的一路溫度信號頻繁歸零，比如原來(lái)是75 突然降到0后又突然恢復到75，這樣很頻繁的動(dòng)作，但溫度表仍然顯示為75度，HMI上也顯示75度，從電腦上看才能看出來(lái)歸零。.
請問(wèn)這是什么問(wèn)題。
卡門(mén)漩渦
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注冊時(shí)間: 2012-10-13
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1樓  發(fā)表于: 2015-10-21 16:10
換個(gè)通道試試，看是不是硬件或者接線(xiàn)的問(wèn)題

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