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zhoufeihero
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樓主  發(fā)表于: 2016-04-15 12:22
為什么西門(mén)子S7-200 SMART 和東元變頻器做MODBUS通訊，在變頻器運轉的時(shí)候不能更改頻率，要變頻器停止才能更改？
刻骨銘心
若愛(ài)，請深?lèi)?ài)
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1樓  發(fā)表于: 2016-04-17 14:17
plc讀寫(xiě)輪詢(xún)看看，這樣循環(huán)讀寫(xiě)應該可以寫(xiě)入
曾少你的，你都已在別處得到。。。

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