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長(cháng)白山上的雪
級別: 探索解密
精華主題: 0
發(fā)帖數量: 57 個(gè)
工控威望: 122 點(diǎn)
下載積分: 474 分
在線(xiàn)時(shí)間: 81(小時(shí))
注冊時(shí)間: 2019-07-23
最后登錄: 2025-06-05
查看長(cháng)白山上的雪的 主題 / 回貼
樓主  發(fā)表于: 2021-05-27 16:47
遇到一個(gè)傳感器，需要讀取數據，通過(guò)485無(wú)協(xié)議方式通訊。具體數值為02 43 B0 01 03 F2 共6個(gè)字節
通訊波特率啥的都弄好了，求教怎么發(fā)送，具體格式該怎么寫(xiě)啊，求教！
長(cháng)白山上的雪
級別: 探索解密
精華主題: 0
發(fā)帖數量: 57 個(gè)
工控威望: 122 點(diǎn)
下載積分: 474 分
在線(xiàn)時(shí)間: 81(小時(shí))
注冊時(shí)間: 2019-07-23
最后登錄: 2025-06-05
查看長(cháng)白山上的雪的 主題 / 回貼
1樓  發(fā)表于: 2021-05-28 15:28
謝謝，我一開(kāi)始也是這樣寫(xiě)的，但是發(fā)現錯了，一共是6個(gè)字節 后來(lái)改成RS D100 K3 D200 K1 格式還是有問(wèn)題，用串口接受發(fā)現格式是這樣的 02 02 43 03 01 b0 01 03,
頭部多了一個(gè)02  尾部多了一個(gè)03 怎么弄都去不掉 ，一開(kāi)始懷疑是報頭報尾 但是參數設置里面并沒(méi)有勾選幀頭幀尾

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