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fredfly
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樓主  發(fā)表于: 2018-04-07 17:59
圖片：
想設計一個(gè)讓Q0.0能夠2秒接通1秒斷開(kāi)的程序。結果Q0.0會(huì )一直接通，T37定時(shí)器在0-20之間反復循環(huán)，T37常閉觸點(diǎn)沒(méi)斷開(kāi)。哪位大俠指導一下？ 
電氣加油
做個(gè)鐵頭娃
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1樓  發(fā)表于: 2018-04-07 18:58
我也是新手，我給你解釋下吧。
你這個(gè)T37不是沒(méi)一直在0-20直接，是斷開(kāi)了，只是一瞬間你看不到，用個(gè)上升沿檢測一下就能發(fā)現。T37達到2s常閉點(diǎn)為0，T37無(wú)使能T37置位，重新2s計時(shí)。只是一瞬間。

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