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kaichunhe209
知識積累勤奮+合理方法
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樓主  發(fā)表于: 2020-06-23 09:14
最近做了個(gè)項目,需要用CP1H與西門(mén)子V20變頻用485,MODBUS RTU通訊,最坑人的是,這款PLC 沒(méi)有相關(guān)通訊指令,更沒(méi)有CRC校驗計算,只能通過(guò)無(wú)協(xié)議通訊,CRC自己計算校驗碼,通過(guò)網(wǎng)上資料,查的校驗碼計算方法,然通過(guò)程序,不錯,運行OK,需要的可以回復;自己覺(jué)得不錯;
[ 此帖被kaichunhe209在2020-06-23 09:29重新編輯 ]
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    wxahe818
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    1樓  發(fā)表于: 2020-10-25 00:23
    引用
    引用第5樓17625413579于2020-06-24 18:24發(fā)表的  :
    不麻煩,有研究過(guò)通訊10臺變頻器順序啟動(dòng)嗎



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