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            1791-16AC
            發布者:工控備件  發布時間:2019-08-14 14:15:23  訪問次數:219

            1791-16AC現貨 in stock! 歡迎來電咨詢~!!

            1791-16AC


            DCS系統故障診斷步驟
              DCS系統一旦出現故障,正確分析和診斷故障發生的部位是當務之急。故障的診斷就是根據經驗,參照發生故障的環境和現象,來確定故障的部位和原因。這種診斷方法因DCS系統產品不同而有一定差別。
              1)是否為使用不當引起的故障。這類故障常見的有供電電源錯誤、端子接線錯誤、模板安裝錯誤、現場操作錯誤等。
              2)是否為DCS系統操作錯誤引起的故障。這類故障常見的有某整定參數整定錯誤、某設定狀態錯誤造成的。
              3)確認是現場儀表設備故障還是DCS系統故障。若是現場一次儀表故障,修復相應現場儀表。
              4)若是DCS系統本身的故障,應確認是硬件毛病或是軟件故障。
              5)若是硬件故障,找出相應的硬件部位,更換模板。 6)若是軟件故障,還應確認是系統軟件或是應用軟件故障。
              7)若是系統軟件有故障,可重新啟動看能否恢復,或重新裝載系統軟件重新啟動。
              8)若是應用軟件故障,可檢查用戶編寫的程序和組態的所有數據,找出故障原因。
              9)利用DCS系統的自診斷測試功能,DCS系統的各部分都設計有相應的自診斷功能,在系統發生故障時一定要充分利用這一功能,來分析和判斷故障的部位和原因。

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