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huchaohui
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樓主  發(fā)表于: 2009-07-24 22:33
剛學(xué)PLC在此請教各位師付,手頭上有一個(gè)歐姆龍CPM1A的PLC,沒(méi)接輸出輸入點(diǎn)時(shí)接通電源,RUN燈亮,用導線(xiàn)連接各輸入點(diǎn)正常,但與電腦通知訊不上,在此請問(wèn)各位此PLC是正常的嗎?
guochunyi
直讀解西門(mén)屏HMI口令 。。。
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1樓  發(fā)表于: 2009-07-25 08:31
根據你提供的條件,判斷PLC正常與否,為時(shí)過(guò)早,不能喝電腦通訊,原因有很多,既有可能是PLC通訊口有問(wèn)題,還可能是編程線(xiàn)有問(wèn)題,還有可能是軟件和通訊參數設置原因。

PLC輸入燈亮,但并不能保證輸出點(diǎn)就正常。

最好是聯(lián)機后,下載程序,直接驗證PLC運行的穩定性。
可直讀解西門(mén)屏HMI各級帳戶(hù)口令,帳戶(hù)登錄權限提升,鎖定帳戶(hù)激活。。。

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