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m046
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樓主  發(fā)表于: 2019-04-29 16:26
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準備用松下的FP-X C30PLC通過(guò)MODBUS RTU通訊方式控制三臺蠕動(dòng)泵定量停機，蠕動(dòng)泵的通訊協(xié)議有，由于水平有限，沒(méi)弄過(guò)不知道怎么入手，懇請師傅們有空幫忙編個(gè)例程，感激不盡！
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    • 學(xué)專(zhuān)業(yè)技能，交痛快朋友。喜歡我們的工控人家園。
    892777011
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    1樓  發(fā)表于: 2019-05-02 12:58
    先找個(gè)串口調試助手，再找下ASCII碼表，按照第一張圖里的幀格式在串口調試助手里面發(fā)送數據，直到能通訊上，通訊上后把PLC鏈接到串口調試助手上，用PLC發(fā)送數據，直到能發(fā)送正確的通訊幀，31H 33H 34H CRC校驗字符，這個(gè)格式自己對照幀格式看

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