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aniu274000
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樓主  發(fā)表于: 2022-09-05 08:40
各路大神：能否提供一個(gè)三菱plc模擬量70多輸入輸出通道，選型結果？？
zhangqi_1234
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1樓  發(fā)表于: 2022-09-05 11:51
采用MODBUS總線(xiàn)。主站選擇FX5U，從站選支持MODBUS-RTU或MODBUS-TCP的多通道模擬量輸入模塊。網(wǎng)上有大量出售8、16、24通道模擬量輸入輸出的MODBUS從站工業(yè)級模塊，售價(jià)通常不超過(guò)800元。選16通道輸入輸出的只需要5個(gè)模塊即可。選擇MODBUS-RTU，硬件成本低，FX5U編程簡(jiǎn)單，但多從站的輪詢(xún)速度慢。選擇MODBUS-TCP，硬件成本高，FX5U編程復雜，多從站的輪詢(xún)速度快。
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