3A99859G03西屋優(yōu)勢
3A99859G03西屋優(yōu)勢
zui近出廠的DCS采用通用操作站，它采用NT操作系統(tǒng)控制工程網(wǎng)版權(quán)所有，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(wù)器聯(lián)接，也可以把少量的信號送到MIS系統(tǒng)的服務(wù)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)控軟件都是的，和其它系統(tǒng)通訊都非常困難。
硬件故障改如何檢查？
硬件故障常常表現(xiàn)為以下幾方面
！ 模塊的插件板與總線底板插接不嚴(yán)密；
！ 撥碼開關(guān)錯誤；通訊線接線方向錯誤；
！ 終端匹配器未接；
！ 硬件跳線與實際信號要求的類型不*；
！ 機(jī)柜內(nèi)系統(tǒng)電源、現(xiàn)場電源輸出有誤；
！ 硬件本身壞。
以上幾方面問題的結(jié)果表現(xiàn)為：
！ 加電后硬件板極故障（指示燈顯示狀態(tài)不對）；
！ 設(shè)備不工作；
！ 系統(tǒng)工作但顯示的對應(yīng)測點值不正確、系統(tǒng)的輸出不能驅(qū)動現(xiàn)場設(shè)備等等。
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