品牌:施耐德 | 規格:140CPU67160 | 材質:140CPU67160 |
產地:法國 |
140CPU67160
140CPU67160
140CPU67160
世紀60年代,計算機技術已開始應用於工業控制了。但由於計算機技術本身的復雜
性,編程難度高、難以適應惡劣的工業環境以及價格昂貴等原因,未能在工業控制中廣泛應用。當時的工業控制,主要還是以繼電—接觸器組成控制係統。
1968年,美國大的汽車制造商——通用汽車制造公司(GM),為適應汽車型號的不斷翻新,試圖尋找一種新型的工業控制器,以盡可能減少重新設計和更換繼電器控制係統的硬件及接線、減少時間,降低成本。因而設想把計算機的完備功能、靈活及通用等優點和繼電器控制係統的簡單易懂、操作方便、價格便宜等優點結合起來,制成一種適合於工業環境的通用控制裝置,並把計算機的編程方法和程序輸入方式加以簡化,用 “面向控制過程,面向對象”的“自然語言”進行編程,使不熟悉計算機的人也能方便地使用。即:
硬件: 減少
軟件: 靈活 簡單
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