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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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    1樓  發(fā)表于: 2020-06-24 18:25
    謝謝樓主分享，辛苦啦

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