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樓主  發(fā)表于: 2009-10-06 12:52

采用三菱PLC與OMRON E5 Z溫控器通訊，485通訊，只讀取溫控器的溫度值，使用RS指令，按照OMRON的通訊協(xié)議，通訊時(shí)有命令幀和響應幀，這兩個(gè)是什么意思？命令幀和響應幀都需要在PLC里編程嗎？我怎么提取發(fā)送過(guò)來(lái)的溫度值？？說(shuō)明書(shū)也看不太明白。。

各位大俠給個(gè)幫助提示吧，或者可以電話(huà)求教

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