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gangliz
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樓主  發(fā)表于: 2017-01-02 19:56
請問(wèn)大家一個(gè)問(wèn)題:
      在用FX3G-485-BD與三菱E-500變頻器做通信時(shí),FX3G-485-BD模塊自帶有電阻轉換開(kāi)關(guān)(110歐姆,撥動(dòng)開(kāi)關(guān),330歐姆),我只連接一臺變頻器,請問(wèn),需要啟用連接電阻嗎?如果需要是撥到110還是330上?變頻器這一側也需要另外連接對應的電阻嗎?
      謝謝!


ab369827
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1樓  發(fā)表于: 2017-01-03 08:37
20m以?xún)炔恍枰秒娮璋?超過(guò)20m 485一般用110歐
wtianh
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2樓  發(fā)表于: 2017-01-03 10:42
110歐

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