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wsgily
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樓主  發(fā)表于: 2012-02-15 16:46
三菱1N PLC modbus通訊怎么做？需要加模塊嗎？具體的指令有哪些？有實(shí)例給參考一下最好。
xcgksp
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1樓  發(fā)表于: 2012-02-15 16:55
1. 可以使用FX0N-485BD模塊或FX-485ADP模塊,
2. 具體指令為PLC的常用通訊指令
3. 需注意modbus的通訊協(xié)議格式，CRC校驗也不要搞錯
guanyumou
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2樓  發(fā)表于: 2012-02-17 16:33
用RS指令根據MODBUS RTU協(xié)議的格式進(jìn)行寫(xiě) QQ149034219
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