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wanghao
不積跬步,無(wú)以至千里
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樓主  發(fā)表于: 2012-02-16 23:01
各位工控好友:
              你們好,昨天我廠(chǎng)一臺結晶機由于外部一傳感器短路造成一Fx2n-80mrPLC電源模塊冒煙燒壞。我隨及找到一塊與之匹配的電源塊,更換后通電,PROG-E燈在閃爍,我清除了內存后,重新下載了新程序,PLC還是經(jīng)常出現PROG-E燈閃爍的現象,請問(wèn)各位大俠,這到底是哪里的問(wèn)題?PLC硬件會(huì )不會(huì )有問(wèn)題?謝謝!
my0871
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1樓  發(fā)表于: 2012-02-18 15:05
PROG-E燈閃爍障,應該先利用GX軟件里PLC診斷功能,看是否能發(fā)現是何處程序出錯以及出錯代碼,然后查找PLC手冊,找出對應原因。根據你說(shuō)的情況,若程序沒(méi)有什么錯誤,預測可能的原因之一是PLC的程序存儲器出現了問(wèn)題,應該更換。
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2樓  發(fā)表于: 2012-02-18 15:07
在診斷時(shí),應先把PLC的輸入COM和輸出的所有COM1~COM5斷開(kāi),防止其他故障混合。

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