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叫我點(diǎn)哥
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樓主  發(fā)表于: 2019-06-19 20:23
以前聽(tīng)過(guò)DP,從來(lái)沒(méi)用過(guò),西門(mén)子PLC也沒(méi)用過(guò),現在有個(gè)稱(chēng)重模塊只有個(gè)DP口,想通過(guò)DP口讀取模塊里的數據(數據采集設備不是PLC,沒(méi)有DP協(xié)議),網(wǎng)上查找了一些關(guān)于DP的,沒(méi)看懂,哪位大神能簡(jiǎn)單通俗的解釋一下,可以不像Modbus協(xié)議那樣用串口發(fā)送一串數據,來(lái)讀?
模塊廠(chǎng)家打熱線(xiàn)問(wèn)過(guò),提供不了技術(shù)支持
qinchenglim
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1樓  發(fā)表于: 2019-06-21 14:21
DP的協(xié)議好像還沒(méi)有對外開(kāi)放,要不然那么多做觸摸屏的都沒(méi)辦法支持DP協(xié)議,只有西門(mén)子自家的屏才支持DP協(xié)議;
解決問(wèn)題的最簡(jiǎn)單方法就是加一塊DP轉modbus rtu模塊
樓主留言:
就是不知道能不能像Modbus那樣,通過(guò)發(fā)報文來(lái)讀咯,加模塊客戶(hù)肯定是不愿意了

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