DCS控制系統(tǒng)是現(xiàn)在很流行的一種可編程控制器，RAC2.2-200-380-A0S-W1應用的范圍也是非常廣泛的，現(xiàn)在很多的操作員都可以熟練的運用這種系統(tǒng)了。DCS控制系統(tǒng)技術也在不斷的提高當中，但是在技術提高的過程當中還是存在一定的問題的，今天小編就來為大家具體介紹一下DCS控制系統(tǒng)存在的問題吧。
DCS系統(tǒng)是繼PLC之外的一大自動化控制系統(tǒng)，RAC2.2-200-380-A0S-W1它在化工、火電等領域的應用極為廣泛，但是生產(chǎn)方面的自動化技術需求進一步提高，傳統(tǒng)的DCS系統(tǒng)已不能滿足需要，需要進行技術升級。
DCS系統(tǒng)由多臺計算機分別控制生產(chǎn)過程中多個控制回路，同時又可集中獲取數(shù)據(jù)、集中管理和集中控制的自動控制系統(tǒng)。分布式控制系統(tǒng)采用微處理機分別控制各個回路，而用中小型工業(yè)控制計算機或高性能的微處理機實施上一級的控制。
RAC2.2-200-380-A0S-W1經(jīng)過這些年來的不斷應用，DCS系統(tǒng)在行業(yè)發(fā)展的一些局限性逐步體現(xiàn)出來。
DCS存在的問題：
?、?對1結構。1臺儀表，1對傳輸線，單向傳輸1個信號。這種結構造成接線龐雜、工程周期長、安裝費用高、維護困難。
?、诳煽啃圆睢ＤM信號傳輸不僅精確度低，且易受干擾。為此采用各種措施提高抗干擾性和傳輸精確度，其結果是增加了成本。
?、凼Э貭顟B(tài)。操作員在控制室既不了解現(xiàn)場模擬儀表的工作狀況，也不能對其進行參數(shù)調整，更不能預測事故，導致操作員對其處于失控狀態(tài)。因操作員不能及時發(fā)現(xiàn)現(xiàn)場儀表故障，而發(fā)生事故已屢見不鮮。
④互操作性差。盡管模擬儀表已統(tǒng)一4～20mA信號標準，RAC2.2-200-380-A0S-W1可大部分技術參數(shù)仍由制造商自定，致使不同品牌儀表無法互換。因此導致用戶依賴制造廠，無法使用性能價格比最優(yōu)的配套儀表，甚至出現(xiàn)個別制造商壟斷市場的局面。
DCS控制系統(tǒng)存在的問題已經(jīng)介紹完了，現(xiàn)在大家對于DCS存在的問題已經(jīng)了解了，雖然DCS控制系統(tǒng)技術存在著一定的問題，但是相信隨著技術的不斷提高，這些問題都會一一突破的。
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