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姚明江
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樓主  發(fā)表于: 2017-12-13 20:34
圖片：
模塊數據見(jiàn)附件，如何通過(guò)RS485讀取寫(xiě)入
zhangqi_1234
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1樓  發(fā)表于: 2017-12-13 21:03
MODBUS-RTU通信協(xié)議，2種方案：一種是安裝FX3U-485BD板，與MODBUS模塊連接，編程使用RS指令、CRC計算指令讀寫(xiě)數據。另一種是安裝FX3U-485ADP-MB，與與MODBUS模塊連接，編程使用ADPRW指令讀寫(xiě)數據。

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