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樓主  發(fā)表于: 2011-05-15 22:30
請教各位高手:

    假如我機器在執行自動(dòng)運行程序過(guò)程中,突然其中某一個(gè)輸入信號沒(méi)有了,這時(shí)要讓機器自動(dòng)停機。請問(wèn)這程序怎樣寫(xiě)呢?謝謝了!
    比如整個(gè)循環(huán)中用了X1、X2、X3、X4等輸入點(diǎn),突然其中X3信號點(diǎn)失效了,要求機器立即自動(dòng)停止運行。我用的是三菱FX1S系列PLC。
    請高手指點(diǎn)一二,謝謝!
lu831226
代理施耐德西門(mén)子等品牌的元件!
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1樓  發(fā)表于: 2011-05-17 08:25
引用
引用第8樓天龍機械于2011-05-16 13:15發(fā)表的  :
謝謝各位了!可是我這些開(kāi)關(guān)不是按鈕開(kāi)關(guān),用的都是光電或接近開(kāi)關(guān),沒(méi)有常開(kāi)和常閉的。
而且我只懂一點(diǎn)點(diǎn)電路、PLC的梯形圖也只懂點(diǎn)點(diǎn),能用梯形圖的方式給出這節程序怎樣寫(xiě),用啥指令?真的太謝謝了!

你在梯形圖中把這幾個(gè)點(diǎn)串起來(lái),輸出一個(gè)點(diǎn),保證運行,如果丟失一個(gè)點(diǎn),那么機器就停止
QQ32135553

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