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身在自動化行業(yè)有多少人知道dcs系統(tǒng)中動態(tài)數(shù)據(jù)服務器的設置方法呢。本文針對其設置方法做一個詳細介紹，供大家參考。

dcs控制系統(tǒng)屬于基礎自動化，mis系統(tǒng)側(cè)重于辦公自動化。這兩者在反映速度上的區(qū)別很大，dcs是屬于秒級的，而mis是以小時或更長時間為單位的。所以這兩者之間必須要有隔離設備，這個隔離設備就是動態(tài)數(shù)據(jù)服務器。它的功能是生產(chǎn)過程監(jiān)控;歷史數(shù)據(jù)的存儲及管理;統(tǒng)計質(zhì)量控制;設備預防性維護;設備故障診斷;生產(chǎn)優(yōu)化等。

dcs采集現(xiàn)場的生產(chǎn)過程數(shù)據(jù)通過通訊網(wǎng)絡把數(shù)據(jù)傳給操作站和動態(tài)數(shù)據(jù)服務器。動態(tài)數(shù)據(jù)服務器是采集生產(chǎn)全過程的模擬信號或邏輯信號，所以它的采集速度是海量的。要經(jīng)過數(shù)據(jù)淘金，將信號送到生產(chǎn)管理部門。

通常情況下，一個企業(yè)往往有幾種不同牌號的dcs、plc，要把這幾種信號都集中到動態(tài)數(shù)據(jù)服務器中，最好要選擇一個通用顯示平臺。在這個平臺上來顯示不同型號的dcs、plc的信號。通用顯示平臺可采用fix、intouch、組態(tài)王、synall等軟件，開發(fā)各種dcs和plc的驅(qū)動軟件。

最近出廠的dcs采用通用操作站，它采用nt操作系統(tǒng)，監(jiān)控軟件就是fix、intouch.不同dcs型號采用不同的驅(qū)動軟件。各種dcs之間信號傳輸采用opc服務器聯(lián)接，也可以把少量的信號送到mis系統(tǒng)的服務器中。fix、intouch等軟件都能存儲歷史數(shù)據(jù)，幾十個信號可存儲280天之多。如要存儲更多的歷史數(shù)據(jù)，可以采用osi歷史數(shù)據(jù)庫，它可以存儲三年以上。這些通用監(jiān)控軟件都有osi的接口。

  老一代的dcs系統(tǒng)的操作站無論操作系統(tǒng)還是監(jiān)控軟件都是專用的，和其它系統(tǒng)通訊都非常困難。如要建立系統(tǒng)間的互聯(lián)，通過計算機接口單元建立動態(tài)數(shù)據(jù)服務器，監(jiān)控軟件仍然可以使用通用的，在nt平臺上運行，但它的數(shù)據(jù)只能上行，不能下行。在設計mis系統(tǒng)過程中，最好使用動態(tài)數(shù)據(jù)服務器，不要把dcs和plc數(shù)據(jù)直接送到web否則會影響到 dcs、plc的正常運行。至于究竟需要建立多少個動態(tài)數(shù)據(jù)服務器，由所需采集的數(shù)據(jù)量和數(shù)據(jù)安  全決定(一般情況下，可達10000點)。

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