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andytang2046
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樓主  發(fā)表于: 2008-07-24 20:28
  小弟是個(gè) S7的新手 ,感覺(jué) 不能完全理解 脈沖上升沿指令 ,感覺(jué)這個(gè)指令沒(méi)什么用 ,比如,指令前面只要接通,都是出來(lái)1,都可以 使后面的線(xiàn)圈接通,何必要這個(gè)脈沖上升沿指令呢
gezhicheng
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1樓  發(fā)表于: 2008-08-13 18:13
那它是不是跟互鎖一個(gè)意思?

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