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huguoqi
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樓主  發(fā)表于: 2008-08-29 10:33
圖片:
 今天看了我們老師傅的三菱PLC編程,發(fā)現他的輸出都是用M系列的,很少用Y作為輸出!
   所以我想用用各位:你們在編程過(guò)程那種用的多?
     附:圖片
ynppp
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1樓  發(fā)表于: 2008-09-02 20:41
上面這段程序中,我是這樣理解的。將輸入信號定義一個(gè)M點(diǎn),在編程時(shí)就重復用定義的M點(diǎn),如果當實(shí)際的被定義的X點(diǎn)損壞后,直接換個(gè)這一個(gè)輸入信號就行了,其程序中不用進(jìn)行大量更換。

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