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老大很悲傷
冰凍三尺非一日之寒
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樓主  發(fā)表于: 2017-11-13 16:05
三菱PLC 的通信，485通信   用指令RS.與EXTR指令，這些指令只能跟三菱的變頻器通信嗎，還是只要能485通信的都可以，只要把它們的通信格式字寫(xiě)入M8120。這些指令都可以用。用模擬量控制變頻器好還是通信控制好。小弟初學(xué)，求解答。
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1樓  發(fā)表于: 2017-11-13 16:11
只要485的,RS可以通用，EXTR三菱變頻器專(zhuān)用的吧
模擬量控制好些，主要看周邊環(huán)境
    
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