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lingjiayi
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樓主  發(fā)表于: 2014-05-06 13:58
原設備上有個(gè)差分信號的編碼器，我是否可以直接從他A+，A-，B+，B-上并出4根線(xiàn)接到我的PLC上讀取脈沖數？
waxapludnt
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1樓  發(fā)表于: 2014-05-06 14:46
如果電壓沒(méi)有衰減是問(wèn)題的，最好用光電耦合分離吧
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