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627549563
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樓主  發(fā)表于: 2012-12-30 00:14
PLC如何控制蜂鳴器聲音

要求有不同報警，聲音是不同的，請高手指教�。。。。。。�！
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記性不好了，怎么學(xué)嘛！
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1樓  發(fā)表于: 2012-12-30 16:11
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就是這個(gè)，你用D做T時(shí)間就行，，，，，，，，，，，
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好人！
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