DCS基本分級環(huán)節(jié)
● 現(xiàn)場控制單元:
指遠離控制中心而在現(xiàn)場附近使用的控制系統(tǒng),可根據(jù)DCS本身機構實現(xiàn)對現(xiàn)場的監(jiān)控和控制,F(xiàn)場控制單元的使用需要準備不同的設備,如配置插件,即根據(jù)系統(tǒng)的要求配置相應的中央處理器插件、電源插件和通信插件等,為后期的分級控制奠定基礎;
冗余配置是分級控制系統(tǒng)中重要的環(huán)節(jié)之一,在配置的過程中要對主機插件、電源插件和通信插件等實現(xiàn)冗余配置;實現(xiàn)隨現(xiàn)場的分級控制和監(jiān)測需要對不同的硬件添加DCS,確保分級控制的可靠性。
● 操作站:
操作站中記錄并顯示控制系統(tǒng)中的不同數(shù)據(jù),是展示人機交互的場所,常用的操作站中包括系主機控制、顯示設備和鍵盤輸入設備等,是主要使用人工操作記錄和反饋的場所,主要實現(xiàn)顯示不同數(shù)據(jù)、報警和操作等多種重要功能。
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