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不要再說(shuō)心痛
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樓主  發(fā)表于: 2016-12-19 02:34
圖片：
[attachment=161158]
從狀態(tài)S27循環(huán)轉移回到S0，定時(shí)器T6不是已經(jīng)復位了嗎，為什么還能做為轉移條件呢？
[ 此帖被不要再說(shuō)心痛在2016-12-19 17:53重新編輯 ]
中文zhw
軟件工程師
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1樓  發(fā)表于: 2016-12-19 07:14
PLC從上到下，從左到右掃描。你的思路停留在中繼電路控制模式，沒(méi)有了解PLC工作原理。
樓主留言：
圖中有兩個(gè)T6，我覺(jué)得第二次循環(huán)是不能實(shí)現的呀

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