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zhaoliguo
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樓主  發(fā)表于: 2019-10-20 20:54
求助:最近遇到個(gè)問(wèn)題,三菱Q系列PLC  QJ71C24N串行通信模塊與宇電溫控表通訊一直讀取不到PV值的數據，哪位大俠有這樣的通訊程序參考一下。
請大家幫忙解決一下,謝謝!
zhaoliguo
級別: 論壇先鋒
精華主題: 0
發(fā)帖數量: 121 個(gè)
工控威望: 1139 點(diǎn)
下載積分: 1218 分
在線(xiàn)時(shí)間: 170(小時(shí))
注冊時(shí)間: 2015-01-14
最后登錄: 2025-06-06
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1樓  發(fā)表于: 2019-10-22 18:33
引用
引用第1樓plc開(kāi)發(fā)張于2019-10-20 22:55發(fā)表的  :
宇電的儀表有自家協(xié)議 也有 非標modbus協(xié)議，注意看看說(shuō)明書(shū)吧。

宇電的通訊協(xié)議我看了，就是通訊不上，與FX3U的能通訊，做Q系列的就通訊不上，可否給指點(diǎn)一下，非常感謝！

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