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ziji2009
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樓主  發(fā)表于: 2010-03-11 16:09
我的三菱PLC和電腦連不起來(lái)了。怎么辦，老是提示指定了不能使用的COM口，怎么該端口？
nbwrk
樹(shù)不要皮必死無(wú)疑！人不要臉天下無(wú)敵！
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1樓  發(fā)表于: 2010-03-12 11:06
應該是端口沒(méi)設對  有時(shí)候端口會(huì )無(wú)緣無(wú)故的被占用的  我這電腦上的COM3就是不能用的  不知道被什么程序一直占著(zhù)  

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