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wuhuibao
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樓主  發(fā)表于: 2018-12-19 09:28
各位大神好！想請教個(gè)關(guān)于通訊的問(wèn)題，我現在想做個(gè)控制，用三菱FX3U的PLC掛485-BD模塊，與富士變頻器通訊，寫(xiě)入變頻器的運行頻率，其他無(wú)要求。三菱PLC跟三菱變頻器通過(guò)MODBUS協(xié)議，通訊簡(jiǎn)單；富士的同樣支持MODBUS協(xié)議，咋就通不上？我的理解，既然都支持MODBUS協(xié)議，那我就不用過(guò)多考慮變頻器品牌因素，只修改相應參數地址就好，不知我理解的有沒(méi)問(wèn)題，初次接觸通訊，望大神指點(diǎn)~謝謝！~
洱海雪
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1樓  發(fā)表于: 2018-12-19 13:51
用RS指令，看哈FX3通訊2016，3U有CRC指令還是好寫(xiě)的。
[ 此帖被洱海雪在2018-12-19 13:58重新編輯 ]

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