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徐工913
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樓主  發(fā)表于: 2015-11-17 11:29
請教附件中觸摸屏中的M152為什么可以直接驅動(dòng)PLC程序中的M152?
zhtokokk
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1樓  發(fā)表于: 2015-11-19 16:36
            你那只是位狀態(tài)指示燈,不能驅動(dòng)m152。

            屏幕上的位指示燈點(diǎn)亮與否,反映了PLC中的位M1521的狀態(tài)變化(0或1),也就是說(shuō),通過(guò)位指示燈的亮滅,間接獲得PLC中位元件M152的情況。
            在沒(méi)有屏的情況,可以通過(guò)把M152的狀態(tài)傳給Y輸出,通過(guò)輸出指示燈來(lái)獲得M152的狀況。
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