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7551412
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樓主  發(fā)表于: 2014-02-15 10:48
CP1E使用自作的串口線(xiàn)和電腦通訊。  
定義  
2-2
3-3
5-9
   4-5

使用超級終端發(fā)送數據1或者0給PLC，發(fā)現收不到數據。。不知道是不是程序寫(xiě)的有問(wèn)題。。

請大俠幫忙分析下

幫忙提供一個(gè)測試程序。。

萬(wàn)分感謝  
這家伙很懶
269560955
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1樓  發(fā)表于: 2014-02-15 14:34
通訊線(xiàn)電腦端4-6短接7-8短接  你少短接了這兩個(gè)角吧

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