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yaoyehao
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樓主  發(fā)表于: 2015-03-27 15:50
s7300PLC想要一個(gè)上升沿脈沖但（P）的效果與200系列的不同，（P）------（線(xiàn)圈），發(fā)現上升沿后這個(gè)線(xiàn)圈一直通著(zhù)，不是上升沿結束就斷
hejc888
默默的奮斗著(zhù)。。
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1樓  發(fā)表于: 2015-04-08 22:25
舉個(gè)例子   i0.0上升沿   I0.0-------P(M0.0)       這里P上面的線(xiàn)圈表示I0.0上一個(gè)周期的狀態(tài)，CPU經(jīng)過(guò)比較現在的狀態(tài)和之前的狀態(tài)才知道是不是上升沿。

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