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redrock99
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樓主  發(fā)表于: 2012-05-28 20:38
如何用PLC的開(kāi)關(guān)量輸出來(lái)表示時(shí)間或是計數的數字？
用DO點(diǎn)來(lái)驅動(dòng)數碼管的話(huà)，兩位數就需要16位DO，有點(diǎn)奢侈，有沒(méi)有其他的方法？通過(guò)硬件間接顯示也行。
大家有什么好的方法嗎？
西門(mén)子深入淺出300的案例說(shuō)用1個(gè)DO來(lái)輸出BCD碼，但是這要通過(guò)什么硬件實(shí)現？
chenpingyg
機械是柱石,電氣是靈魂.
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1樓  發(fā)表于: 2012-05-28 21:24
你知道單片機是怎么驅動(dòng)七段碼現實(shí)的久好了。
自己的事情自己做.

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