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6GF8007-1AC02現(xiàn)貨 in stock! 歡迎來電咨詢~??！

軌道交通低壓開關(guān)柜、環(huán)控電控柜系統(tǒng), 由環(huán)控電控室及中間風井配電房內(nèi)的400V環(huán)控Ⅰ、 Ⅱ級負荷進線雙電源切換柜及饋出柜、Ⅲ級負荷單電源進線柜及饋出柜、軟起動柜、繼電器柜(J屏)等組成.施耐德電氣自動化iMCC解決方案在上海地鐵M7環(huán)控電控 iMCC和上海地鐵 M10 環(huán)控電控iMCC中成功應用,本文主要將施耐德電氣自動化iMCC解決方案在上海地鐵的應用作一總結(jié)。
　　網(wǎng)絡(luò)結(jié)構(gòu)
　　綜合單元任務是將環(huán)控室內(nèi)職能裝置通過現(xiàn)場總線或工業(yè)以太網(wǎng)連接在一起。綜合單元將相關(guān)的信號上傳至上一級系統(tǒng)(EMCS),并將上一級系統(tǒng)(EMCS)的控制命令轉(zhuǎn)發(fā)給環(huán)控室內(nèi)的智能裝置，以完成整個環(huán)控室的控制和集成，它主要的硬件設(shè)備平臺-環(huán)控柜綜合管理系統(tǒng)監(jiān)控主機(PLC-B)和軟件應用平臺組成。
　　監(jiān)控主機是各職能設(shè)備與車站綜合監(jiān)控(EMCS)之間的通訊樞紐，是實現(xiàn)綜合自動化必不可少的設(shè)備，它具有多串口，支持多網(wǎng)絡(luò)、多規(guī)約的要求，具有很好的可擴充性和可維護性。與各個串口上所連接的智能設(shè)備及各開關(guān)量進行通訊，同時與上一級綜合監(jiān)控系統(tǒng)進行數(shù)據(jù)交換，實現(xiàn)遙測、遙信和遙控功能。
　　繼電器(J)屏風門、風閥類設(shè)備控制中使用可編程控制器模塊PLC-A, 主要負責對事故風機組合風閥等集中控制，提供柜與綜合監(jiān)控等系統(tǒng)接口端子。PLC-A作為PLC-B同系列的遠程IO模塊，通過冗余的雙總線方式與PLC-B連接。即采用遠程I/O通訊方式，現(xiàn)場執(zhí)行機構(gòu)、儀器儀表、配電系統(tǒng)等，通過遠程I/ O模塊，實現(xiàn)遠程控制。
　監(jiān)控主機(PLC-B)
　　綜合管理系統(tǒng)單元采用冗余配置,雙機熱備系統(tǒng)與Unity Pro 軟件相兼容，并通過Quantum CPU提供關(guān)鍵過程應用所需要的高度可用性。
　　冗余CPU采用 140CPU67160，它采用Pentium II型芯片，主頻266MHz。 Modbus、Modbus Plus、TCP/IP、USB等多種通訊端口和內(nèi)存卡插槽，內(nèi)存卡最多可擴展至16M。集成液晶顯示屏幕，用于顯示系統(tǒng)的運行、故障、通訊等狀態(tài)信息。支持鑰匙開關(guān)和多種口令保護，保證系統(tǒng)可靠、穩(wěn)定運行;
　　監(jiān)控主機選用了雙機熱備系統(tǒng),即兩個CPU位于兩個機架上, 實現(xiàn)CPU、電源、通訊模塊、擴展電纜全部冗余，它們共享一套I/O?；?100 Mbps 高速光纖鏈路，用光纖連接兩個熱備控制器工作時一臺CPU為主機，另一臺為熱備機，主備CPU直接通過光纖連接,如主機發(fā)生故障或自檢失敗時可和熱備機進行無擾切。該切換為硬件切換，非軟件切換，不需編寫額外的切換用戶程序。
　　系統(tǒng)結(jié)構(gòu)的中心部分是兩個Quantum PLC 機架，即通常意義下的“主機” 和“備機”。它們的硬件配置相同( 每個本地機架上安裝的模塊必須一致)。每個機架配置的核心部件是140 CPU 67160 處理器，專門設(shè)計用于Unity Pro 軟件下的雙機熱備架構(gòu)。該處理器是一個雙槽模塊，同時包含中央處理單元和一個冗余協(xié)處理器。
　　“主” PLC 執(zhí)行應用程序并且控制輸入輸出(I/O)?！皞洹?PLC駐留在后臺，必要的時候取代“主”PLC。“備機”和“主機”之間通過一個集成在 CPU 當中的高速光纖鏈路(100Mbps)相連接,以確保主備CPU之間數(shù)據(jù)備份的實時性。
　　此光纖鏈路(62.5/125 多模光纖) 可以擴展2公里遠，中間無需任何附件設(shè)備。“備用” PLC 當中的用戶應用程序數(shù)據(jù)正是通過此光纖鏈路被周期性地更新。
　　在“主” PLC 意外發(fā)生故障時，備用系統(tǒng)自動切換，由“備用” PLC使用最新的數(shù)據(jù)內(nèi)容執(zhí)行應用程序并更新I/O。一旦系統(tǒng)發(fā)生切換，“備用”PLC 就將變?yōu)?“主” PLC。在發(fā)生故障的PLC 修復并重新連接到系統(tǒng)當中時，它將承擔“備用” PLC 的角色。
　　使用Unity Pro軟件的雙機熱備系統(tǒng)能夠?qū)崿F(xiàn)主備機之間平穩(wěn)、無縫的切換。切換對于過程而言是透明的，系統(tǒng)對過程的監(jiān)控不會中斷，并且不會因為發(fā)生硬件故障而受到不利影響。使用Unity Pro 的雙機熱備系統(tǒng)因此能夠減少停機時間，從而提高生產(chǎn)效率。
　　自動化數(shù)據(jù)從運行 CPU 轉(zhuǎn)送到熱備CPU每次掃描周期的開始進行數(shù)據(jù)交換。強迫置位數(shù)據(jù)傳送和 CPU 的邏輯執(zhí)行同步。傳送的時間大大減少 (協(xié)處理器到 協(xié)處理器)，無需任何特殊配置。一個掃描周期能夠完成所有數(shù)據(jù)全部交換，無需用戶配置?？刂葡到y(tǒng)采用雙機熱備系統(tǒng)，熱備套件固化熱備切換程序，實現(xiàn)無擾切換。用戶無需編寫切換程序，熱備系統(tǒng)為硬件切換型。同時通過監(jiān)控軟件和PLC系統(tǒng)的硬件按鈕進行手動切換。不管何種方式都能保證系統(tǒng)的無擾動切換。在冗余主備CPU不會因為一般故障發(fā)生切換，在條件下主備CPU會發(fā)生切換：主CPU故障、主CPU電源故障或關(guān)斷、主CPU背板故障、RIO遠程通訊模塊出現(xiàn)故障。在其它單點故障(如主CPU測以太網(wǎng)模塊有故障)主備機不會切換，同時不會影響冗余PLC實現(xiàn)上一級系統(tǒng)EMCS的全部功能。

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Advantech PCI-1610CU

Allen-Bradley 2711P-T12C4D1 PanelView Plus 1250 Touch/Enet/RS-232 64MB DC

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A575-030 GOULD DRIVES AS-IS

836800 WESTINGHOUSE CONTROLLERS REMANUFACTURED

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SKF 7018-ACD/P4ADGA NSFP 7018ACDP4ADGA

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pulls AP763A Hp StorageWorks MDS 600 Dual I/O Module Option Kit 498472-001

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V/R 847490-206 MECH DISP INTERFACE MODULE

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ALLEN-BRADLEY OUTPUT MODULE 1771-OA SERIES B

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HONEYWELL 80363969-150 NSFP 80363969150

WINDSOR MPMUW1 USPP MPMUW1

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Reliance Electric 45C961 Output Module XLNT

Texas Instruments 500-5019

Spirent Adtech AX/4000 Utopia Interface pn 400323

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Modicon AS-W617-012

Schneider Modicon AS-WBXT-201 BUS EXTENSION CABLE FS

Schneider Modicon AS-B827-032 24VDC INPUT MODULE

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Schneider Modicon TSX Compact DEP216/AS-BDEP-216

Schneider Modicon B805 AS-B805-016 INPUT MODULE 115 V AC

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RELEASE SuperMicro X9DR3-LN4F MB FULL MFR

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Scalable package: Ask about adding more SB168-ES units

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Schneider Modicon Primary & Secondary Rack Cables AS-WBXT-201 6873

Schneider Modicon AS-BBKF-201Compact Inter-S Mstr ASBBKF201

Schneider Modicon AS-B828-016 ASB828016 5VDC TTL Output

Schneider Modicon AS-B873-001 MODULE

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Schneider Modicon AS-D908-110 Distributed Control Processor UVG

Schneider PLC Output Module TSXDSY16R5

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AllenBradley2711-T6C20L1/BPanelView600Touch/Color/EtherNet/RS232-Print

Allen Bradley VersaView 1700P Interface Panel Catalog 6181P-17NPXPH

ABB EH800C-4 IN A 900 amp

ADVANCED ENERGY / 3150010-015

(J3) 1 ALLEN BRADLEY 1336-B010-EOD-L3 DRIVE (J3)

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Reliance 57C409

Schneider Modicon Gould ASBDEP218Module AS-BDEP-218 ASBDE

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Advantech PCL-745B RS-422/485 Card PCL-745B REV.B1

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