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zeng0jian7
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樓主  發(fā)表于: 2018-06-08 10:31
新手剛接觸通信，想做plc和一個(gè)支持modbus rtu的稱(chēng)重采集卡的通信，下了rs 485手冊全英文看不懂，請問(wèn)485bd和485adp mb，除了傳輸距離不一樣外，還有什么具體的不同？聽(tīng)說(shuō)用485adp后使程序都會(huì )變簡(jiǎn)單，為什么會(huì )這樣，程序不都一樣嗎？難道用adp后支持更多指令？希望有師傅能回答下，謝謝

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