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wuyonggang
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樓主  發(fā)表于: 2011-02-14 12:56
謝謝！能不能在具體點(diǎn)呢？

ATV 12變頻器是用MODBUS協(xié)議，是CRC校驗碼？能講一下MODBUS的協(xié)議格式嗎？

還要三菱變頻器用的是總和校驗屬于那種協(xié)議格式呢？能其他品牌的PLC通訊嗎？

謝謝！
meiyouleya
天黑路滑，社會(huì )復雜�。�！
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1樓  發(fā)表于: 2011-02-15 08:18
本論壇已經(jīng)多次公布過(guò)modbus通訊格式，以及其CRC效驗的原理和方法，自己找找吧！

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