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5921338
好好學(xué)習，天天向上
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樓主  發(fā)表于: 2018-06-11 12:23
今天一臺設備因為動(dòng)作流程更改所以重新編寫(xiě)了程序，在寫(xiě)入時(shí)提示COM不能用，我用的是USB連接。關(guān)掉軟件重新打開(kāi)讀取plc成功，在線(xiàn)修改清除存儲器都可以，就是不能寫(xiě)入新程序。最后換SC09線(xiàn)寫(xiě)入的。是我哪里沒(méi)有設置對嗎，之前試的時(shí)候USB都可以寫(xiě)入的。
自學(xué)
工控菜鳥(niǎo)
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1樓  發(fā)表于: 2018-06-15 11:04
碰到一樣的問(wèn)題，之前的USB還好好地，驅動(dòng)也正常，就是寫(xiě)不進(jìn)去，清除內存也不行，最后也是用422連接的，少了個(gè)USB調試好不方便

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