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泡桐樹(shù)
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樓主  發(fā)表于: 2014-10-31 19:25
​小弟在做一個(gè)設備使用的是三菱Q系列PLC,需要三菱RS485模塊通過(guò)串口轉換器轉成以太網(wǎng),然后與PC之間傳送數據,請問(wèn)三菱RS485與串口轉換器之間如何通訊,還有如何選擇串口轉換器?跪求,十分感謝。
john42tw
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1樓  發(fā)表于: 2014-11-03 08:21
引用
引用樓主泡桐樹(shù)于2014-10-31 19:25發(fā)表的 三菱RS485模塊轉以太網(wǎng),如何選擇串口轉換器? :
​小弟在做一個(gè)設備使用的是三菱Q系列PLC,需要三菱RS485模塊通過(guò)串口轉換器轉成以太網(wǎng),然后與PC之間傳送數據,請問(wèn)三菱RS485與串口轉換器之間如何通訊,還有如何選擇串口轉換器?跪求,十分感謝。

RS485 非MODBUS協(xié)議 ---->QJ71C24N
RS485     MODBUS協(xié)議 --->QJ71MB91
以太網(wǎng) --------------------------->QJ71E71-100

儀表(或其他設備) ----> RS485 ---> PLC CPU ---> 以太網(wǎng) ---> PC

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