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方奇10010
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樓主  發(fā)表于: 2023-11-17 09:51
請問(wèn)工控老玩家們一般什么情況下使用子程序?
個(gè)人理解是做一些運算用,不做輸出點(diǎn)位控制時(shí)使用,因為Call指令條件斷開(kāi)時(shí),子程序中的軟元件會(huì )保持斷開(kāi)前的狀態(tài),像一些突發(fā)情況,例如急停時(shí),如果不在子程序外寫(xiě)額外的程序復位軟元件,那么設備應該是停不下來(lái)的.
但是如果只是做運算用的話(huà),又比不上內嵌ST方便.
所以想問(wèn)一下大佬們對子程序的看法.
方奇10010
級別: 略有小成
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發(fā)帖數量: 98 個(gè)
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1樓  發(fā)表于: 2023-11-17 11:05
想到子程序通常做一些重復性的工作,像運算,然后想到如果加上變址就可以做氣缸的控制程序了,只可惜標簽不支持變址,這樣只能在子程序里使用軟元件加變址的形式了,再加上全局的分配軟元件的結構體數組,就可以方便觸摸屏操作了.

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