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pangolin
級別: 探索解密
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發(fā)帖數量: 7 個(gè)
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在線(xiàn)時(shí)間: 12(小時(shí))
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最后登錄: 2025-05-29
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樓主  發(fā)表于: 2017-11-01 12:00
今天遇到個(gè)問(wèn)題擴展模塊的24v線(xiàn)沒(méi)接但是把主模塊的COM端和擴展的輸入端短接會(huì )有輸入，但是正常用起來(lái)會(huì )干擾外部設備輸出的光耦，后來(lái)把擴展模塊的24V和開(kāi)關(guān)電源（）接一起就好了不會(huì )有干擾。外部輸入設備光耦是外部開(kāi)關(guān)電源供電
goldage
級別: 工控俠客
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發(fā)帖數量: 1960 個(gè)
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注冊時(shí)間: 2016-06-19
最后登錄: 2025-06-08
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1樓  發(fā)表于: 2017-11-01 21:49
模塊沒(méi)電源也會(huì )有反應，沒(méi)看錯吧

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