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xuweid123
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樓主  發(fā)表于: 2018-01-29 21:19

如題,公司的程序很大,見(jiàn)圖,左側有很多塊程序,這樣的程序如何掃描,是上面的程序掃描完再往下掃描下面的,一排一排的,
還是所有程序一起從頭往下掃描?掃描速度應該是很快的吧??

另外就是一個(gè)變址Z的問(wèn)題,我知道配合軟元件的使用方法,但就是給Z賦值指令問(wèn)題,一段程序中就可能數次賦值,而且是
SM400常通的繼電器后面直接輸出為inc z0,然后下面過(guò)很多排還有SM400做輸入,直接輸出rst z0,z0很是搞不懂,而且像圖上
別的塊的程序中也分別給z0賦值,也有好幾處指令賦值和復位。這樣很多地方都給Z0賦值,到底哪一個(gè)有效呢??還是每一塊的只在
那一塊程序中起作用,按我的理解應該也不是,因為M、x、y等指令所有塊的程序中都會(huì )自己變化,但沒(méi)有這樣的賦值及復位條件,
實(shí)在想不通這個(gè)變址賦值問(wèn)題?
zmrs163
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1樓  發(fā)表于: 2018-01-30 16:41
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