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wangfuwang
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樓主  發(fā)表于: 2013-06-07 17:50
用觸模屏按鍵來(lái)代替啟動(dòng)與停止開(kāi)關(guān)，PLC輸入點(diǎn)是不是可以不用，或PLC沒(méi)那么多輸入點(diǎn)，可以PLC內部中間繼電器（M）來(lái)實(shí)現，如可以，選輸入點(diǎn)少的PLC，這樣是不是可省成本。
zx1234
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1樓  發(fā)表于: 2013-06-07 18:45
可以啊
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2樓  發(fā)表于: 2013-06-07 18:45
是的 如果你只是單獨為了節省PLC的觸點(diǎn)的話(huà)買(mǎi)觸摸屏就不劃算了
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