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海洋ace
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樓主  發(fā)表于: 2024-12-19 08:42
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我的觸摸屏和PLC是通過(guò)485連接的,還剩一路232的接口,想用這個(gè)與上位機通訊做工廠(chǎng)設備監控,有前輩做過(guò)這樣的方案嗎?求實(shí)例  
夢(mèng)雨天涯
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1樓  發(fā)表于: 2024-12-19 08:53
只剩下232的話(huà),你只能做modbus RTU從站了,PLC數據傳給觸摸屏,上位機通過(guò)232讀取觸摸屏的地址。以后還是買(mǎi)TK8072IP吧,有個(gè)網(wǎng)口的方便很多
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海洋ace
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2樓  發(fā)表于: 2024-12-19 09:39
可以加個(gè)232轉網(wǎng)關(guān),就是上位機怎么讀取觸摸屏的值呢?看了很多例子都是讀PLC的,讀PLC的我已經(jīng)實(shí)現了。就是想學(xué)習一下讀觸摸屏的,

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