440R-M23084/B
440R-M23084/B
440R-M23084/B
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系統(tǒng)硬件布置如下：前置機(jī)1使用FGD-DCS系統(tǒng)操作員站；后置機(jī)使用環(huán)保局?jǐn)?shù)據(jù)采集工控機(jī)，安裝在脫硫除塵控制室。網(wǎng)閘設(shè)備使用1套獨(dú)立的單向物理隔離網(wǎng)閘（需要由電力部、部安全認(rèn)證的產(chǎn)品）；
三紫金橋數(shù)據(jù)平臺介紹
紫金橋軟件針對新華DCS UDP方式單獨(dú)開發(fā)了接收數(shù)據(jù)的程序，采用被動監(jiān)聽端口和接受數(shù)據(jù)的方式采集數(shù)據(jù)，這樣不用在新華DCS系統(tǒng)上安裝任何軟件，確保DCS的安全，同時由于網(wǎng)閘的隔離作用，紫金橋軟件是不會向DCS系統(tǒng)內(nèi)發(fā)送任何數(shù)據(jù)，從而避免人為因素或計算機(jī)病毒對新華DCS系統(tǒng)的影響。
首先在新華DCS一側(cè)信息網(wǎng)MMI站和后置計算機(jī)（環(huán)保局工控機(jī)）之間加上網(wǎng)閘，只允許新華DCS數(shù)據(jù)單向傳輸給后置計算機(jī)；然后在MMI站上配置Asdpu.exe程序，使其以UDP方式周期向MIS網(wǎng)廣播所需的數(shù)據(jù)報文。在后置計算機(jī)上安裝紫金橋UDP數(shù)據(jù)接收程序來被動接收新華DCS實(shí)時數(shù)據(jù)，同時啟動本地后置機(jī)上的紫金橋?qū)崟r數(shù)據(jù)庫；紫金橋?qū)崟r數(shù)據(jù)庫OPCServer即可對環(huán)保局提供新華DCS實(shí)時數(shù)據(jù)。如圖2所示
圖2 紫金橋軟件平臺
四項(xiàng)目實(shí)施后的效果
從DCS側(cè)信息數(shù)據(jù)包可以通過網(wǎng)閘傳輸?shù)焦芾砭W(wǎng)側(cè)。從管理網(wǎng)側(cè)到DCS側(cè)不能通過任何數(shù)據(jù)包；數(shù)據(jù)吞吐量大于每分鐘1萬點(diǎn)信息數(shù)據(jù)包。在后置機(jī)上提供工業(yè)標(biāo)準(zhǔn)通訊接口OPC Server，與環(huán)保數(shù)據(jù)采集通訊成功，將環(huán)保部門所需數(shù)據(jù)按其要求進(jìn)行傳送、交換。
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福建光沃自動化設(shè)備有限公司
聯(lián)系人 ：歐工（銷售經(jīng)理）
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