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cstw18
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樓主  發(fā)表于: 44天前
PLC和觸摸屏通訊故障，修的人檢測后說(shuō)，PLC壞了。
然而PLC程序可以正常的讀和寫(xiě)。
編程電纜用的PLC接口，和與觸摸屏的通訊接口，是同一個(gè)接口。
PLC壞的理由是什么？
總覺(jué)得被忽悠了。
tangjiezyc
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1樓  發(fā)表于: 44天前
1樓說(shuō)的有道理，以前我還和客戶(hù)說(shuō)過(guò)PLC電池沒(méi)電了...后來(lái)經(jīng)歷多了，再也不說(shuō)電池沒(méi)電了，除非客戶(hù)看的出來(lái)....
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