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wuxi41
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樓主  發(fā)表于: 2019-08-22 12:03
昨天維修遇到一臺三菱fx3g的plc，422口，usb口都連接不上，run燈也不亮，x輸入也沒(méi)反應！拆機看到里面有三塊板，一塊板上有422接口(一大塊)，中間一塊上是繼電器，底下是電源板！求教cpu在那塊板上，程序存儲器又在那塊板上！
honggun
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1樓  發(fā)表于: 2019-08-22 18:30
引用
引用第3樓wuxi41于2019-08-22 12:58發(fā)表的  :
噢，謝謝，拿外面有人把程序搞出來(lái)了，我是讀不出來(lái)，不知道怎么弄的！外加通訊口不知道有沒(méi)有用

也許有用，也許不行。要看壞的地方和壞的程度

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