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hebust2005
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樓主  發(fā)表于: 2010-12-08 12:27
濃度檢測儀表（4線(xiàn)制4-20ma）和溫度變送器（2線(xiàn)制4-20ma）已進(jìn)入到PLC314顯示在MP277上�，F在用戶(hù)要求把這兩個(gè)信號顯示在一個(gè)儀表上并安裝到31個(gè)不同位置，需要31個(gè)顯示儀表，這樣怎樣實(shí)現？如果單靠變送器向外送接2次顯示表，損耗太大不太可能實(shí)現。通過(guò)PLC與2次表或者顯示屏通訊能否實(shí)現？  請指教  謝謝

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