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王京king
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樓主  發(fā)表于: 2014-07-08 20:57
我使用工控機和FX3UPLC通訊，計算機使用串口按照1次/1s的頻率給PLC發(fā)送一串（24個(gè)字節）數據，PLC根據收到的數據進(jìn)行相應的操作和動(dòng)作，調試過(guò)程中發(fā)現的問(wèn)題為：計算機只可以對PLC進(jìn)行一次操作，繼續操作時(shí)PLC就不再有動(dòng)作，必須將PLC  stop再run后，計算機才可對PLC進(jìn)行另外一次操作，如此反復。。。不知道是哪里出了問(wèn)題，求指點(diǎn)
taiwan_kkk
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1樓  發(fā)表于: 2014-07-20 20:48
請問(wèn)板大

你用無(wú)線(xiàn)通訊時(shí)連接PC

那麻PLC裡面還需要寫(xiě)程式碼跟PC通訊?

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