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15250554801
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樓主  發(fā)表于: 2022-03-21 17:19
1200PLC與700觸摸屏以太網(wǎng)通訊
先在觸摸屏上設置一個(gè)數據，plc寄存器里斷點(diǎn)保持，通訊正常
斷電上電后觸摸屏上該值變?yōu)?   而PLC寄存器內數值還是設置的數據
切換觸摸屏畫(huà)面后再切回，設置數據又正常了
有沒(méi)有大佬告訴一下這是什么問(wèn)題。多謝了
精彩有我
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1樓  發(fā)表于: 2022-03-27 23:03
你看一下這個(gè)I/O框的屬性是選擇的“”輸入”/“輸出和輸出”/“輸出”，如果選擇的是“輸入”，數值只有切換畫(huà)面時(shí)才會(huì )更新，建議選擇“輸入和輸出”，WINCC也是一樣的原理。

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