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集散控制系統(tǒng)(Distributed Control System-DCS)集計算機技術(shù)、控制技術(shù)、通信技術(shù)、CRT技術(shù)于一體,廣泛應用于生產(chǎn)過程控制系統(tǒng)。隨著計算機和網(wǎng)絡技術(shù)的飛速發(fā)展,產(chǎn)生了一種新型的控制系統(tǒng)———現(xiàn)場總線控制系統(tǒng)(Fieldbus Control System-FCS)。但國內(nèi)生產(chǎn)企業(yè)的情況是:大多數(shù)企業(yè)還處于模擬儀表和人工控制的階段,采用DCS控制系統(tǒng)的企業(yè)仍是少數(shù)。由于DCS應用廣泛、技術(shù)成熟,在現(xiàn)有的技術(shù)條件和市場條件下,F(xiàn)CS還不能完全取代DCS,而且目前現(xiàn)場總線設備和系統(tǒng)還十分昂貴。因此,除了新建企業(yè)外,國內(nèi)企業(yè)在較長時間不可能全面采用現(xiàn)場總線技術(shù),而必須走逐步發(fā)展、過渡的道路。 ??我們在上海石化股份公司環(huán)保部水質(zhì)凈化廠監(jiān)控系統(tǒng)的改造項目中,對3個生產(chǎn)單元已有的DCS和PLC進行改造,增加通信功能,實現(xiàn)總調(diào)度室對各生產(chǎn)裝置的集中監(jiān)控。 2?系統(tǒng)改造方案?? 根據(jù)水質(zhì)凈化廠各生產(chǎn)單元的功能和建設階段,分為廠外調(diào)節(jié)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(chǎn)單元。另外,在廠部設有總調(diào)度室,但是總調(diào)度室的監(jiān)控水平較為落后,改造之前基本上不能對各個生產(chǎn)單元進行監(jiān)控。為了適應生產(chǎn)需要,提高生產(chǎn)效率,改善操作條件,加強監(jiān)控手段,確保各生產(chǎn)裝置的正常運行,急需對各生產(chǎn)單元和總調(diào)度室進行技術(shù)和設備的更新改造,從而能在總調(diào)度室對各裝置進行監(jiān)視管理,及時了解各裝置的運行情況,達到指揮及時和調(diào)度準確的目的。 2.1?現(xiàn)場監(jiān)控系統(tǒng)的改造 ??現(xiàn)場監(jiān)控系統(tǒng)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(tǒng)結(jié)構(gòu)見圖2—1): ??四期污水處理生產(chǎn)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(shù)據(jù)高速通道)實現(xiàn)數(shù)據(jù)共享。在原有的現(xiàn)場控制計算機上分別增加以太網(wǎng)卡,通過以太網(wǎng)將實時數(shù)據(jù)送到總調(diào)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(tǒng)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(xiàn)場操作站,用點對點方法連接,使PLC的數(shù)據(jù)通過現(xiàn)場操作站送到以太網(wǎng)上,與總調(diào)度室監(jiān)控計算機通信。但RS-232傳輸速率只有9600bps,操作站僅對現(xiàn)場起到監(jiān)視作用。
ABB 57770163 * NEW IN BOXABB 6018BZ10200C MEMORY EXPANSION BOARD
ABB A4058T NSNP
ABB ACN6340120500000000902 INVERTER
ABB ACN6340140500000300902 INVERTER
ABB ACS550-U1-059A-4 NSMP
ABB API ELMO 3 HAC 2206 SERVO MOTOR PS 90/6-90-P-LSS-4609
ABB DSBC172 57310001-KD/3
ABB DSQC346U NSMP
ABB FS450R12KE3/AGDR-81C 3AUA0000109332 SPARE PART KIT
ABB IMASI23 NSNP
ABB INNIS21
ABB INSEM01 UNMP
ABB Q3HAC17333-1 NSMP
ABB RDCU-02C 64607901 DRIVE CONTROL UNIT
ABB S5H400CW BKR S5H 400A 3P LSI
ABB VD86-SCAN VIDEO CONTROL BOARD
AC TECH M15400B NSNP
ACCURAY 061552-001 MICROPROCESSOR BOARD 3-061551-001
ACCU-SORT LASER BARCODE AXIOM-X
ADVANCED ENERGY 3154013-010E PLASMA PROCESS CONTROLLER
ALLEN BRADLEY 100-B600ND3 SER. B CONTACTOR 110/120V
ALLEN BRADLEY 1326AB-B430E-21 SER. C NSMP
ALLEN 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
注:聯(lián)系我時,請說是在“傲立機床網(wǎng)”上看到的,謝謝!