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kakacaca
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樓主  發(fā)表于: 2007-06-15 23:57
PLC如何驅動(dòng)七段數碼顯示，最好有電氣原理圖
simpson
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1樓  發(fā)表于: 2007-06-16 11:40
數碼管要用7.5V的直流電驅動(dòng),不要用24V哦,會(huì )燒壞數碼碼的,用一個(gè)輸出點(diǎn)來(lái)控制一段,也就是說(shuō),每一位數字要至少占用PLC的7個(gè)輸出點(diǎn).
     

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