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PCA-6120P18-REV A2

PCA-6120P18-REV A2

PCA-6120P18-REV A2

PLC的發(fā)展歷程 

在工業(yè)生產(chǎn)過程中，大量的開關(guān)量順序控制，它按照邏輯條件進(jìn)行順序動作，并按照邏輯關(guān)系進(jìn)行連鎖保護(hù)動作的控制，及大量離散量的數(shù)據(jù)采集。傳統(tǒng)上，這些功能是通過氣動或電氣控制系統(tǒng)來實(shí)現(xiàn)的。1968年美國GM（通用汽車）公司提出取代繼電氣控制裝置的要求，第二年，美國數(shù)字公司研制出了基于集成電路和電子技術(shù)的控制裝置，首次采用程序化的手段應(yīng)用于電氣控制，這就是第一代可編程序控制器，稱Programmable Controller（PC）。 

福州卓凱電子科技有限公司聯(lián)系人：林工
24小時咨詢熱線：17705012279

TEL：0591-22989937
QQ：879520885

傳真：0591-22989937
公司地址：福州市閩侯西江濱大道77號正榮潤園一號樓1205室
產(chǎn)品價格以電話或者QQ詢價為準(zhǔn)，發(fā)布價格及圖片不做參考

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