IC660BBR100

項目概述：

本網(wǎng)絡(luò)方案是株洲電廠二期技改工程2×300MW機組采用的輔控“水”網(wǎng)網(wǎng)絡(luò)控制系統(tǒng)。輔控“水”網(wǎng)包含對以下輔助控制系統(tǒng)的監(jiān)視和控制：化學(xué)補給水控制系統(tǒng)、凝結(jié)水精處理控制系統(tǒng)、汽水取樣及化學(xué)加藥控制系統(tǒng)、化學(xué)廢水處理控制系統(tǒng)1、凈水站控制系統(tǒng)、制氫站控制系統(tǒng)。

輔控“水”網(wǎng)向SIS系統(tǒng)提供過程數(shù)據(jù)和計算、分析結(jié)果以滿足電廠總值長對全廠生產(chǎn)過程的管理要求，確保機組安全、運行。

二，網(wǎng)絡(luò)拓?fù)洌?/p>

本方案設(shè)計的輔控網(wǎng)絡(luò)采用雙星型網(wǎng)絡(luò)結(jié)構(gòu)。赫思曼的MACH3002核心交換機作為整個網(wǎng)絡(luò)的中心，百兆冗余連接到服務(wù)器（實時數(shù)據(jù)庫），百兆連接到各終端PLC。

輔控“水”網(wǎng)采用上位機、可編程控制器（PLC）相結(jié)合的控制方式, 輔控“水”網(wǎng)覆蓋化學(xué)補給水系統(tǒng)、凝結(jié)水精處理系統(tǒng)、化學(xué)取樣及化學(xué)加藥系統(tǒng)、化學(xué)廢水處理系統(tǒng)、凈水站系統(tǒng)、制氫站系統(tǒng)，負(fù)責(zé)以上各個車間系統(tǒng)的監(jiān)視、運行操作，上位機主要完成系統(tǒng)所覆蓋各車間的設(shè)備的操作，各車間系統(tǒng)運行參數(shù)的顯示、計算、報警、打印以及PLC參數(shù)設(shè)置、控制邏輯的修改，系統(tǒng)的調(diào)試；PLC接收上位機的操作指令完成對被控設(shè)備的控制、被控對象的聯(lián)鎖保護(hù)，同時將采集到的信號經(jīng)過處理后通過光纖交換機提供給網(wǎng)絡(luò)數(shù)據(jù)庫服務(wù)器和上位機。臺灣的雪山隧道全長總計12.9km，是第五長的隧道，也是亞洲第二長的公路隧道。雪山隧道是一座由多組隧道構(gòu)成的隧道群。除了東行線、西行線的兩座主隧道，尚包括中間的導(dǎo)坑；兩座主隧道中間，有28座橫向的人行聯(lián)絡(luò)隧道、8座車行聯(lián)絡(luò)道，加上抽排風(fēng)系統(tǒng)所挖掘的豎井、三處通風(fēng)站、三座通風(fēng)中繼站合計112處橫向通風(fēng)隧道、六座通風(fēng)豎井及一號豎井頂部排風(fēng)用橫向排氣隧道等等，大大小小長長短短共58組隧道，是全規(guī)模大雙孔公路隧道群。

在這種長度的隧道內(nèi)發(fā)生緊急情況是非常危險的，尤其是火災(zāi)等。為了減少事故對旅客的傷害，在隧道的兩個入口和兩個出口處，均安裝了道路流量控制系統(tǒng)，這樣可以根據(jù)緊急事件提供快速響應(yīng)，控制流量、疏導(dǎo)交通，避免其他駕駛員進(jìn)入危險區(qū)域。

系統(tǒng)需求

工業(yè)級設(shè)計，可使用隧道內(nèi)惡劣的現(xiàn)場環(huán)境

可將串口PLC接入以太網(wǎng)絡(luò)

冗余網(wǎng)絡(luò)，確保系統(tǒng)不間斷運行

Moxa解決方案

雪山隧道采用了歐姆龍的PLC，可自動響應(yīng)信號控制系統(tǒng)，或可進(jìn)行手動操作。因PLC還帶有串口，因此采用了Moxa的NPort 5230串口設(shè)備聯(lián)網(wǎng)服務(wù)器，將PLC接入以太網(wǎng)絡(luò)。當(dāng)緊急事故發(fā)生時，PLC可通過NPort 5230從網(wǎng)絡(luò)直接獲取指令，迅速降低通道流量。

對不同出入口的控制系統(tǒng)而言，數(shù)據(jù)傳輸也是十分重要的。系統(tǒng)集成商采用了Moxa EDS-508-SS-SC工業(yè)交換機，使用單模光纖組建了一個可靠的工業(yè)環(huán)網(wǎng)，確保網(wǎng)絡(luò)的不間斷運行。單模光纖環(huán)網(wǎng)還通過光纖向上接入本地控制室。基于這樣一個可靠的架構(gòu)，雪山隧道運營方可及時根據(jù)不同情況來調(diào)整車流量，從而確保駕駛員和車輛的安全。

SICK OPTIC ELECTRONIC 1010982 Through-Beam Photo, NPN, IR, 300 m range, heated l

SICK OPTIC ELECTRONIC 1010983 Through-Beam Photo, PNP, IR, 300 m range, heated l

SICK OPTIC ELECTRONIC 1010984 THROUGH-BEAM PHOTO, NPN, IR, 300 M RANGE, PG 13-5

SICK OPTIC ELECTRONIC 1010985 THROUGH-BEAM PHOTO, PNP, IR, 300 M RANGE, PG 13.5

SICK OPTIC ELECTRONIC 1010986 Through-Beam Photo, NPN, IR, 300 m range, heated l

SICK OPTIC ELECTRONIC 1010987 Through-Beam Photo, PNP, IR, 300 m range, heated l

SICK OPTIC ELECTRONIC 1010988 THROUGH-BEAM PHOTO, NPN, IR, 300 M RANGE, 7-PIN RO

SICK OPTIC ELECTRONIC 1010989 Through-Beam Photo, PNP, IR, 300 m range, 7-pin ro

SICK OPTIC ELECTRONIC 1010990 Through-Beam Photo, NPN, IR, 300 m range, heated l

SICK OPTIC ELECTRONIC 1010991 Through-Beam Photo, PNP, IR, 300 m range, heated l

SICK OPTIC ELECTRONIC 1010992 THROUGH-BEAM PHOTO, NPN, IR, 300 M RANGE, 1/2 INCH

SICK OPTIC ELECTRONIC 1010993 THROUGH-BEAM PHOTO, PNP, IR, 300 M RANGE, 1/2 INCH

SICK OPTIC ELECTRONIC 1010994 Through-Beam Photo, UC SPDT, IR, 300 m range, heat

SICK OPTIC ELECTRONIC 1010995 Through-Beam Photo, UC SPDT, IR, 300 m range, PG 1

SICK OPTIC ELECTRONIC 1010996 Through-Beam Photo, UC SPDT, IR, 300 m range, heat

SICK OPTIC ELECTRONIC 1010997 THROUGH-BEAM PHOTO, UC SPDT, IR, 300 M RANGE, 7-PI

SICK OPTIC ELECTRONIC 1010998 Through-Beam Photo, UC SPDT, IR, 300 m range, heat

SICK OPTIC ELECTRONIC 1010999 Through-Beam Photo, UC SPDT, IR, 300 m range, 1/2

SICK OPTIC ELECTRONIC 1011016 PROXIMITY PHOTOELECTRIC,

SICK OPTIC ELECTRONIC 1011017 PHOTOELECTRIC SWITCH PNP IR 20-250MM RNG 4PIN M12

SICK OPTIC ELECTRONIC 1011018 PROXIMITY PHOTOELECTRIC,

SICK OPTIC ELECTRONIC 1011019 PROXIMITY PHOTOELECTRIC,

SICK OPTIC ELECTRONIC 1011026 Through-Beam Photoelectric, Individual receiver, P

SICK OPTIC ELECTRONIC 1011028 THROUGH-BEAM PHOTOELECTRI

SICK OPTIC ELECTRONIC 1011036 WL12-P4371

SICK OPTIC ELECTRONIC 1011038 REFLEX PHOTOELECTRIC, POL

SICK OPTIC ELECTRONIC 1011039 REFLEX PHOTOELECTRIC, POL

SICK OPTIC ELECTRONIC 1011040 PHOTOELECTRIC RFLX PLRZD CLR MTRL RED PNP/NPN 0-4M

SICK OPTIC ELECTRONIC 1011056 PROXIMITY PHOTOELECTRIC,

SICK OPTIC ELECTRONIC 1011058 PROXIMITY PHOTOELECTRIC,

SICK OPTIC ELECTRONIC 1011060 PROXIMITY PHOTOELECTRIC,

SICK OPTIC ELECTRONIC 1011061 CONTRAST SENSOR BLUE/GREEN PNP/NPN 3.5MM 5P M12

SICK OPTIC ELECTRONIC 1011107 Through-Beam Photoelectric, PNP, IR, 50 m range,

SICK OPTIC ELECTRONIC 1011108 Proximity Photoelectric, PNP, IR, 200...800 mm ABS

SICK OPTIC ELECTRONIC 1011109 Proximity Photoelectric, NPN, IR, 200...800 mm ABS

SICK OPTIC ELECTRONIC 1011110 Proximity Photoelectric, PNP/NPN, IR, 100...2000 m

SICK OPTIC ELECTRONIC 1011112 CONTROL

SICK OPTIC ELECTRONIC 1011115 PROX SWITCH

SICK OPTIC ELECTRONIC 1011119 Proximity Photoelectric, PNP, Red, 50...150 mm ABS

SICK OPTIC ELECTRONIC 1011120 Proximity Photoelectric, NPN, Red, 50...150 mm ABS

SICK OPTIC ELECTRONIC 1011121 PROXIMITY SWITCH 50-150MM RANGE RED M12 4PIN

SICK OPTIC ELECTRONIC 1011122 Proximity Photoelectric, NPN, Red, 50...150 mm ABS

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SICK OPTIC ELECTRONIC 1011371 PROXIMITY PHOTOELECTRIC,

SICK OPTIC ELECTRONIC 1011372 THROUGH-BEAM PHOTOELECTRI

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SICK OPTIC ELECTRONIC 1011417 REFLEX PHOTO, POLARIZED,

SICK OPTIC ELECTRONIC 1011418 PHOTOELECTRIC SWITCH 2500MM RANGE IR SPDT

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