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qinchenglim
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樓主  發(fā)表于: 2009-07-19 20:38
現在正在改造設備,老板要求機器有記憶,判斷功能.用的是三菱FX2N的PLC. 具體要求是:有十個(gè)做貨位置,每個(gè)位置做貨完成系統都要記住這個(gè)狀態(tài),而且要求程序具有判斷功能,在同一個(gè)工作循環(huán)內同一個(gè)位置不能重復做兩次.我用D0存儲做貨位置,用m1-m10來(lái)寄存每個(gè)位置的狀態(tài),想讓m1-m10隨D0的變化而變化.比如當D0=3時(shí),表示第三個(gè)位置在做貨,當這個(gè)位置完成時(shí),m3由OFF變ON,同理當D0=4時(shí),做貨完成m4由OFF變ON,編程時(shí)發(fā)現FX2 N的CPU 里面 m類(lèi)的繼電器不支持與變址寄存器V結合用的功能,比如set[m1v0]這樣的表達不能使用,現在一時(shí)想不出好的方法設計程序,請三菱高手幫幫忙,給我提供個(gè)思路,謝謝了

            做貨完成
D0=1                                      m1   ON
D0=2                                      m2   ON
D0=3                                      m3   ON
                    .
                    .
                    .
                    .
D0=10                                   m10   ON
haozijun
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1樓  發(fā)表于: 2009-07-22 11:56
樓主,變址也可以,你不用m標記是否有貨,你用d來(lái)標記就可以解決了, 嘗試用循環(huán)指令很有意思的

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