(1)現(xiàn)場控制單元的軟件系統(tǒng)
現(xiàn)場控制單元的軟件主要包括以實時數(shù)據(jù)庫為中心的數(shù)據(jù)巡檢、控制算法、控制輸出和網(wǎng)絡(luò)通信等軟件模塊組成。
實時數(shù)據(jù)庫起到了中心環(huán)節(jié)的作用，在這里進(jìn)行數(shù)據(jù)共享，各執(zhí)行代碼都與它交換數(shù)據(jù)，用來存儲現(xiàn)場采集的數(shù)據(jù)、控制輸出以及某些計算的中間結(jié)果和控制算法結(jié)構(gòu)等方面的信息。數(shù)據(jù)巡檢模塊用以實現(xiàn)現(xiàn)場數(shù)據(jù)、故障信號的采集，并實現(xiàn)必要的數(shù)字濾波、單位變換、補償運算等輔助功能。dcs的控制功能通過組態(tài)生成，不同的系統(tǒng)，需要的控制算法模塊各不相同，通常會涉及以下一些模塊：算術(shù)運算模塊、邏輯運算模塊、pid控制模塊、變型pid模塊、手自動切換模塊、非線性處理模塊、執(zhí)行器控制模塊等等?？刂戚敵瞿K主要實現(xiàn)控制信號以故障處理的輸出。
(2)操作站的軟件系統(tǒng)
dcs中的操作站用以完成系統(tǒng)的開發(fā)、生成、測試和運行等任務(wù)，這就需要相應(yīng)的系統(tǒng)軟件支持，這些軟件包括操作系統(tǒng)、編程語言及各種工具軟件等。一套完善的dcs，在操作站上運行的應(yīng)用軟件應(yīng)能實現(xiàn)如下功能：實時數(shù)據(jù)庫、網(wǎng)絡(luò)管理、歷史數(shù)據(jù)庫管理、圖形管理、歷史數(shù)據(jù)趨勢管理、數(shù)據(jù)庫詳細(xì)顯示與修改、記錄報表生成與打印、人機接口控制、控制回路調(diào)節(jié)、參數(shù)列表、串行通信和各種組態(tài)等。


聯(lián)系人：黃生(銷售工程師) 
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