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mr.sugar
級別: 正式會(huì )員
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樓主  發(fā)表于: 2018-01-21 10:10
本人小菜鳥(niǎo)，以step7為例，modbus與s7300plc通訊（沒(méi)有通信模塊），modbus的數據是如何存到plc中的，是自建一個(gè)DB塊還是別的什么方式，以及plc中的數據是如何傳到modbus中的，請各位大神告知，方便的話(huà)能不能介紹幾個(gè)關(guān)于較全面這方面的書(shū)籍或者資料，感謝!
qinzhuang
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1樓  發(fā)表于: 2018-01-21 10:20
沒(méi)有通訊模塊，怎么通訊。對方給你打電話(huà)，結果你沒(méi)有手機

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