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zhoufeihero
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樓主  發(fā)表于: 2016-04-15 12:26
為什么西門(mén)子S7-200 SMART 和東元變頻器做MODBUS通訊時(shí)，變頻器的頻率只能在變頻器停止的時(shí)候更改，在變頻器運轉的時(shí)候不能更改？
是我程序有問(wèn)題嗎
wisexdh
承接電氣自動(dòng)化設計、調試
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1樓  發(fā)表于: 2016-04-15 22:15
變頻器應該有參數讀寫(xiě)權限，比如運行中寫(xiě)入。
承接電氣自動(dòng)化設計、調試
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hanqin
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2樓  發(fā)表于: 2016-04-16 08:57
問(wèn)東元售后

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