IC693ALG220
IC693ALG220
IC693ALG220
1、本次DCS控制系統(tǒng)升級(jí)改造后保留原有DCS系統(tǒng)各站的所有功能(包括組態(tài)的控制策略、操作、顯示、報(bào)警、趨勢(shì)顯示、歷史趨勢(shì)和歷史數(shù)據(jù)顯示和查詢以及與其他控制系統(tǒng)的通訊、顯示等)。
2、升級(jí)改造后,保留原有I/O點(diǎn)數(shù),CP負(fù)荷不高于50%,采用Mesh網(wǎng)絡(luò)結(jié)構(gòu),通訊速率不低于100Mb/s,通訊負(fù)荷不高于50%。
3、保證DCS控制系統(tǒng)升級(jí)改造后整個(gè)系統(tǒng)的完整性、可靠性、安全性,系統(tǒng)可用性應(yīng)大于99.99%。
4、原系統(tǒng)電源采用1:1冗余配置,對(duì)升級(jí)所涉及的機(jī)柜電源進(jìn)行評(píng)估,并保證升級(jí)后仍為1:1配置,而且有足夠余量,即使只有一路電源供電系統(tǒng)仍可正常工作
5、因原系統(tǒng)AW/WP工作站51F目前已經(jīng)停產(chǎn),且故障率高,需要升級(jí)到最新主流型號(hào)的工作站,其中6臺(tái)操作站為雙屏配置。升級(jí)后的工作站的硬件和軟件應(yīng)具有高可靠性和容錯(cuò)性,軟件應(yīng)有從錯(cuò)誤中迅速恢復(fù)的功能。
6、13對(duì)控制器(型號(hào)為CP60)需要升級(jí)至最新的控制器(型號(hào)為FCP270或以上),容錯(cuò)(冗余)配置。
7、控制系統(tǒng)的網(wǎng)絡(luò)結(jié)構(gòu)需要升級(jí)至新的MESH網(wǎng)絡(luò)結(jié)構(gòu),控制局域網(wǎng)和現(xiàn)場總線設(shè)備容錯(cuò)(或冗余)配置,通信網(wǎng)絡(luò)應(yīng)有病毒防護(hù)設(shè)施。
8、升級(jí)后系統(tǒng)接地原則上采用原DCS系統(tǒng)的接地系統(tǒng)。
9、DCS系統(tǒng)升級(jí)后,不得改變?cè)到y(tǒng)I/O卡件及通道的編號(hào),方便升級(jí)改造后的維護(hù)。
四、升級(jí)改造技術(shù)方案
根據(jù)本廠的現(xiàn)狀和需求,結(jié)合I/A Series的產(chǎn)品生命周期特征,制定如下升級(jí)方案:
現(xiàn)場DCS系統(tǒng)控制著3臺(tái)垃圾焚燒爐2臺(tái)汽機(jī)和一套公用系統(tǒng),為了保證現(xiàn)場生產(chǎn)安全,計(jì)劃在升級(jí)時(shí)進(jìn)行短時(shí)間的停機(jī),在停機(jī)期間先對(duì)公用系統(tǒng)、1#爐以及1#機(jī)進(jìn)行升級(jí)。公用系統(tǒng)、1#爐以及1#機(jī)升級(jí)后即可開爐運(yùn)行,以緩解垃圾堆放場的壓力。待1#爐、公用系統(tǒng)以及1#機(jī)升級(jí)完畢后進(jìn)行2#爐,3#爐以及2#機(jī)的升級(jí),在剩下系統(tǒng)升級(jí)過程中,可根據(jù)現(xiàn)場實(shí)際情況確定開爐時(shí)間。
具體方案如下:
1、停機(jī)期間,首先搭建整個(gè)系統(tǒng)的網(wǎng)絡(luò)平臺(tái),對(duì)現(xiàn)有主機(jī)柜進(jìn)行改裝,新增一對(duì)24口光纖交換機(jī)及其配套電源,并重新設(shè)置系統(tǒng)commit安裝盤,定義整個(gè)網(wǎng)絡(luò)結(jié)構(gòu)。升級(jí)后的網(wǎng)絡(luò)結(jié)構(gòu)將非常簡單并且穩(wěn)定。13對(duì)控制器及8臺(tái)工作站(操作員站6臺(tái),工程師站和歷史站各1臺(tái))均通過冗余光纖直接接到交換機(jī),形成冗余的Mesh網(wǎng)絡(luò)結(jié)構(gòu)。由現(xiàn)有#1機(jī)/爐控制器(型號(hào)為CP60)升級(jí)成新的控制器(型號(hào)為FCP270),升級(jí)后的控制器隨卡件柜布置;
2、將公用系統(tǒng)和1#爐的控制器(型號(hào)為CP60)升級(jí)為新控制器(型號(hào)為FCP270),控制器不再集中布置,升級(jí)后的控制器隨卡件柜布置。
3、對(duì)現(xiàn)有公用系統(tǒng)和#1爐及1#機(jī)卡件柜利舊改造,卡件底板更換為最新的FBM底板,原有卡件保留。
4、將工作站全部升級(jí)為最新的工作站(型號(hào)為H92),操作員站和工程師站性能將大大提升。
5、公用系統(tǒng)和1#爐及1#機(jī)升級(jí)完畢后,可根據(jù)要求啟動(dòng)公用系統(tǒng)和1#爐及1#機(jī),進(jìn)行正常生產(chǎn)運(yùn)行,同時(shí)對(duì)2#爐、3#爐和2#機(jī)進(jìn)行升級(jí)改造,這兩個(gè)爐在升級(jí)后逐一接入新的Mesh網(wǎng)絡(luò)系統(tǒng),既保證生產(chǎn)安全,又使得現(xiàn)場停機(jī)時(shí)間不會(huì)太長,保證生產(chǎn)連續(xù)。
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