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集散控制系統(Distributed Control System-DCS)集計算機技術、控制技術、通信技術、CRT技術于一體,廣泛應用于生產過程控制系統。隨著計算機和網絡技術的飛速發展,產生了一種新型的控制系統———現場總線控制系統(Fieldbus Control System-FCS)。但國內生產企業的情況是:大多數企業還處于模擬儀表和人工控制的階段,采用DCS控制系統的企業仍是少數。由于DCS應用廣泛、技術成熟,在現有的技術條件和市場條件下,FCS還不能完全取代DCS,而且目前現場總線設備和系統還十分昂貴。因此,除了新建企業外,國內企業在較長時間不可能全面采用現場總線技術,而必須走逐步發展、過渡的道路。 ??我們在上海石化股份公司環保部水質凈化廠監控系統的改造項目中,對3個生產單元已有的DCS和PLC進行改造,增加通信功能,實現總調度室對各生產裝置的集中監控。 2?系統改造方案?? 根據水質凈化廠各生產單元的功能和建設階段,分為廠外調節池、污水一段、氧化溝、四期污水處理、污泥脫水、污泥干化6個生產單元。另外,在廠部設有總調度室,但是總調度室的監控水平較為落后,改造之前基本上不能對各個生產單元進行監控。為了適應生產需要,提高生產效率,改善操作條件,加強監控手段,確保各生產裝置的正常運行,急需對各生產單元和總調度室進行技術和設備的更新改造,從而能在總調度室對各裝置進行監視管理,及時了解各裝置的運行情況,達到指揮及時和調度準確的目的。 2.1?現場監控系統的改造 ??現場監控系統的改造要充分利用原有儀表和設備,主要考慮可靠性和實時性。首先對自控程度較高的3個單元進行改造(系統結構見圖2—1): ??四期污水處理生產單元控制設備配置了兩套ALLEN-BRADELY公司PLC設備。25塊開關量輸入信號卡,可采集384點信號;7塊開關量輸出信號卡,可輸出112點信號;3塊模擬量輸入信號卡,可采集24點信號。兩套AB—PLC通過DH+(數據高速通道)實現數據共享。在原有的現場控制計算機上分別增加以太網卡,通過以太網將實時數據送到總調度室處理。??輸出192點信號;1塊模擬量輸入信號卡,可采集8點信號。系統運行采用遙控開關操作與全模擬流程盤顯示。在原有的Siemens S5-115UPLC上增加RS-232通訊模塊(CP524)和1臺現場操作站,用點對點方法連接,使PLC的數據通過現場操作站送到以太網上,與總調度室監控計算機通信。但RS-232傳輸速率只有9600bps,操作站僅對現場起到監視作用。
ALLEN BRADLEY 1326AB-B430E-21 SER. C NSMPALLEN BRADLEY 1326AB-B520E-M2L SER. B REMAN
ALLEN BRADLEY 1326AB-B520E-S2L SER. B NSFS
ALLEN BRADLEY 1326AB-C2E-11-C5-X069 SERVO MOTOR 5.2 KW 3000 RPM
ALLEN BRADLEY 1336-B003-EAD-FA2-S1 SER.A REMAN
ALLEN BRADLEY 1336-B007-EAD-S1 SER. A AC DRIVE
ALLEN BRADLEY 1336-B010S-ECD-L3-RP3 SER.A NSMP
ALLEN BRADLEY 1336-BDB-SP20D SER. C
ALLEN BRADLEY 1336F-B020-AA-EN-HAS2-LA1-L6 SER. A NSNP
ALLEN BRADLEY 1336F-B020-AA-EN-HAS2-LA2-LA3-L4 SER.A DRIVE
ALLEN BRADLEY 1336F-BRF200-AN-EN SER. A NSMP
ALLEN BRADLEY 1336S-B010-AA-EN-HA2-L6 SER. D REMAN
ALLEN BRADLEY 1336S-B020-AN-EN3-HA1-L6 SER. D * REMANUFACTURED *
ALLEN BRADLEY 1336S-B020-AN-EN4-HAP-L5 SER. D
ALLEN BRADLEY 1336S-B020-AN-EV4-GM1-HA2-L6D SER. D
ALLEN BRADLEY 1336VT-B010-EAN-FA2-L1-S1 SER. A UNMP
ALLEN BRADLEY 1391BAA45 RE10220056 SER. D REMAN
ALLEN BRADLEY 1391B-AA45 SER. D * REMANUFACTURED *
ALLEN BRADLEY 1394C-SJT05-A SER. C F/W V6.01 UNMP
ALLEN BRADLEY 1394-SJT10-A SER. A F/W V5.01 UNMP
ALLEN BRADLEY 1394-SJT10-A SER. A F/W V6.01 UNMP
ALLEN BRADLEY 1394-SJT10-C-RL SER. B DIGITAL SERVO CONTROLLER 308/460V
ALLEN BRADLEY 1394-SJT10-C-RL SER. B F/W V3.6 UNMP
ALLEN BRADLEY 1398-DDM-019 NSNP
ALLEN BRADLEY 1398-DDM-150 F/W D UNMP
ALLEN BRADLEY 1400ELKC6 SER. E PANELVIEW REV. E (REMANUFACTURED)
ALLEN BRADLEY 1400ELKC6 SER. G F/W 5.16 NSNP
ALLEN BRADLEY 1400-ELTC6 SER. G REV. D FRN 5.16 PANELVIEW
ALLEN BRADLEY 150-A97NBD SER. B NSNP
ALLEN BRADLEY 150-B135NBD SER. A NSNP
ALLEN BRADLEY 150-B97NBD SER. A (BR/WH) NSMP
ALLEN BRADLEY 1745-LP156 SERIES C
ALLEN BRADLEY 1747-L543 PROCESSOR UNIT SER. C F/W 8 NSNP
ALLEN BRADLEY 1747-L543 SER. B F/W 11 (NO KEY) NSMP
ALLEN BRADLEY 1747-L543 SER. C F/W 3 NSMP
ALLEN BRADLEY 1747-L551 SER. C (NO KEY) REMAN
ALLEN BRADLEY 1747-L551 SER. C F/W 10 NSMP
ALLEN BRADLEY 1747-L551 SER. C F/W 11 (NO KEY) NSMP
ALLEN BRADLEY 1747-L551 SER. D F/W 13 (NO KEY) NSMP
ALLEN BRADLEY 1747-L551 SER. D F/W 13 NSMP
ALLEN BRADLEY 1756-L61S SER. B F/W 1.10 NSMP
ALLEN BRADLEY 1756L63 SER.A F/W 1.4 DATE: 2006
ALLEN BRADLEY 1756-L71 SER. B F/W 1.010 DATE: 2017
ALLEN BRADLEY 1756-L71 SER. B F/W 1.010 DATE: 2017 NSFS
ALLEN BRADLEY 1771-HS1
ALLEN BRADLEY 1771-HS1 SER. A F/W 03.01 NSMP
ALLEN BRADLEY 1771-IR SER. A F/W L INPUT MODULE (REMANUFACTURED)
ALLEN BRADLEY 1771-IR SER. D F/W 8 DATE: 2015 NSFS
ALLEN BRADLEY 1775-A1 PLC-3 PROGRAMMABLE CHASSIS
ALLEN BRADLEY 1785-ENET SER. A F/W C INTERFACE DATE: 1998 *FACTORY SEALED*
ALLEN BRADLEY 1785-ENET SER. B F/W D DATE: 2003 NSFS
ALLEN BRADLEY 1785-L20E SER.E F/W B.2 PROCESSOR (NO KEY)
ALLEN BRADLEY 1785-L30B SER. A F/W P.1 REMAN
ALLEN BRADLEY 1785-L30B SER. E F/W D PROCESSOR DATE: 1999
ALLEN BRADLEY 1785-L40B SER. C F/W E
ALLEN BRADLEY 2094-BC04-M03-S SER. A F/W 1.98 NSMP
ALLEN BRADLEY 2094-BC04-M03-S SER. B F/W 1.122 NSMP
ALLEN BRADLEY 2094-BC07-M05-S SER. C F/W 1.127 NSMP
ALLEN BRADLEY 2094-BC07-M05-SB1122 SER. B F/W 1.122 NSNP
ALLEN BRADLEY 2098-DSD-HV220-SE SER. B F/W V1.52 NSMP
ALLEN BRADLEY 20BC085A0ANNANC0 SER. A F/W 3.003 UNMP
ALLEN BRADLEY 20BC085A0ANNANC0 SER. B F/W 4.001 (AS PICTURED) UNMP
ALLEN BRADLEY 20BC085A0ANNANC0 SER. B F/W 4.001 UNMP
ALLEN BRADLEY 20BC085A0ANNANC0 SER. B F/W 9.001 UNMP
ALLEN BRADLEY 20BD022A0AYYANN0 SER. A AC DRIVE
ALLEN BRADLEY 20BD022A3AYNAND0 SER B F/W 10.001 AC DRIVE
ALLEN BRADLEY 20BD027A0AYNAND1 SER. A F/W 3.003 NSMP
ALLEN BRADLEY 20BD027A3AYYANA0 SER. A F/W 3.002 REMAN
ALLEN BRADLEY 20BD040A3AYNADA0 SER. A F/W 3.002 (AS PICTURED) NSNP
ALLEN BRADLEY 20DD5P0A3EYYANCBL SER. A F/W 4.002 UNMP
ALLEN BRADLEY 20DD5P0A3EYYANCBL SER. A F/W 5.002 UNMP
ALLEN BRADLEY 2107MS-GXCB509/1 SER. Q
ALLEN BRADLEY 2711-KC1 SER. C F/W 5.02.01 NSNP
ALLEN BRADLEY 2711-KC1X SER. C REV I FRN 5.02.00 (w/ KEY)
ALLEN BRADLEY 2711P-B15C15D2 SER. A UNMP
ALLEN BRADLEY 2711P-K12C4D1 SER.G PANEL VIEW PLUS MODULE
ALLEN BRADLEY 2711P-T10C6A6 SER. A (BR/WH) NSMP
ALLEN BRADLEY 2711P-T12C4D8 SER. A NSMP
ALLEN BRADLEY 2711P-T15C4B2 SER. A PANELVIEW (REMANUFACTURED)
ALLEN BRADLEY 2711-T10G20 SER. C REV. C FRN 4.43
ALLEN BRADLEY 2711-T10G8X SER. E F/W 4.48 (REMANUFACTURED)
ALLEN BRADLEY 2711-TC1X SERIES C OPERATOR INTERFACE
ALLEN BRADLEY 2711-TC4 SER.F INTERFACE (NO KEY) (REMANUFACTURED)
ALLEN BRADLEY 2711-TC4X SER.F W/ KEY INTERFACE (REMANUFACTURED)
ALLEN BRADLEY 2750-AHPR1 INTELLIGENT ANTENNA (AS PICTURED)
ALLEN BRADLEY 500FL-FOB92 SER. L 480V (BR/WH) NSMP
ALLEN BRADLEY 509-FOS SER. L NSNP
ALLEN BRADLEY 520F-EOA SER. B STARTER
ALLEN BRADLEY 6180CS-NV2 SER. B NSNP
ALLEN BRADLEY 6180P-15KPXPX SER. E UNMP
ALLEN BRADLEY 801-FSC14 SER. A (BR/WH) NSMP
ALLEN BRADLEY 8520-S5 RA08020097 SER. C REMAN
ALLEN BRADLEY 8520-SER10-2Q-4Q SER. A REMAN
ALLEN BRADLEY 8520-SER5-2Q-4Q SER. A REMAN
ALLEN BRADLEY DRIVE 20DD3P4A3EYNANCNL SER. A
ALLEN BRADLEY F-4050-Q-H00AA SER. A NSNP
ALLEN BRADLEY MPL-B330P-MJ24AA SER. A SERVO MOTOR 5000RPM
ALLEN BRADLEY MPL-B580F-MJ72AA SER. A NSMP
ALLEN BRADLEY PANELVIEW 1200 2711-TC4 SER F FRN 5.10.00 INTERFACE
ALLEN BRADLEY PANELVIEW 1400 2711-T14C8X SER. A F/W 4.20 (REMAN)
ALLEN BRADLEY PANELVIEW 900 2711-T9C1 SER. C F/W 4.00 (REPAIRED)
ALLEN BRADLEY POWERFLEX 70 20AE052A0AYNANC0 SER. A F/W 4.001 AC DRIVE
ALLEN BRADLEY POWERFLEX 700 20BD040A3AYNAND0 SER. B AC DRIVE
ALLEN BRADLEY R2711B6C2L1/C PANEL VIEW
ALLEN BRADLEY RP-144447 KIT
ALLEN BRADLEY SLC 500 1747-L543 SER. B F/W 9 PROCESSOR UNIT
ALLEN BRADLEY SLC 500 1747-L543 SER.B PROCESSOR (NO KEY) REMAN
ALLEN BRADLEY ULTRA 1398-DDM-019X-DN SER. A SERVO DRIVE
ALLEN BRADLEY ULTRA 1398-DDM-020X SERVO DRIVE
ALLEN BRADLEY VERSAVEIW 6182H-15TEH4D SER A OPERATOR INTERFACE
AMADA PDT-R3B-10
ANTON PAAR DPRN4122 349581 FLOW DENSITY TRANSDUCER
APANTEC 10047-001 UNMP
APANTEC RAM606 NSNP
APANTEC SDA3E NSNP
ARISTA BOXPC-304K COMPUTER + MONITOR
ASCO 2063816RF 125VDC NSMP
ASCO 833-354201003694 UNMP
ASCO X2063816RF12013 3/8" 125VDC NSMP
ASCO X2063816RF12013 3/8" 125VDC NSNP
ATLAS COPCO ETDSL21-04-I06-PS UNMP
ATLAS COPCO PF3007-G-DN-HW (NO KEY) NSMP
AVTRON AV685N1E8Y8YP000 INCREMENTAL ENCODER
B&R AUTOMATION 5PC810.SX02-00 5P81:JONRED-08 NSNP
BAILEY 547121FAAZ2 NSNP
BAILEY SEQUENCE MODULE INSEM01
BAILY AND PORTER 50SM13A1BXD10ACEC2101 SIGNAL CONVERTER
BALDOR BL0052A03 AC SERVO DRIVE
BALDOR SD26BA05-PO AC SERVO DRIVE
BALDOR ZD18H407-E
BANNER ENGINEERING MGR7216A 32300 NSMP
BAUMULLER BFK 12/30/400-2002
BAYSIDE RA115-030-LB NSNP
BECK 11-208-111548-03-01 NSMP
BECK 20-2701-20
BERGER LAHR WDP5-118.05100 DRIVE
BIHL WIEDEMANN BWU2227 NSNP
BONFIGLIOLI ACU401-19A NSMP
BOSCH 0811404623 NSNP
BOSCH 1070071221-102 SERVO CONTROLLER
BOSCH 1070071221-102 SERVO CONTROLLER
BOSCH SM5/10-TA SERVO MOTOR
BOSTON GEAR VOR13BBLP24 NSNP
Brand New
BRANSON 947MA CONTROL UNIT
BROWNING 7MVC110S NSMP
BRUENINGHAUS HYDROMATIK LA10VO100FE1/31R-PSC12K07-SO203 00987077 NSNP
CANBERRA DSA-1000 UNMP
CARL REHFUSS SM031HU-IEC63C NSNP
CARLYLE 06DM3136CC3650 NSNP
注:聯系我時,請說是在“傲立機床網”上看到的,謝謝!