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集散控制系統(tǒng)(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(tǒng)。隨著計算機和網絡技術的飛速發(fā)展,產生了一種新型的控制系統(tǒng)———現場總線控制系統(tǒng)(Fieldbus Control System-FCS)。但國內生產企業(yè)的情況是:大多數企業(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。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(tǒng)還十分昂貴。因此,除了新建企業(yè)外,國內企業(yè)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(fā)展、過渡的道路。 ??我們在上海石化股份公司環(huán)保部水質凈化廠監(jiān)控系統(tǒng)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(jiān)控。 2?系統(tǒng)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(jié)池、污水一段、氧化溝、四期污水處理、污泥脫水、污泥干化6個生產單元。另外,在廠部設有總調度室,但是總調度室的監(jiān)控水平較為落后,改造之前基本上不能對各個生產單元進行監(jiān)控。為了適應生產需要,提高生產效率,改善操作條件,加強監(jiān)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(jiān)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(jiān)控系統(tǒng)的改造 ??現場監(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(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(jiān)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(jiān)視作用。
ALLEN BRADLEY PANELVIEW 550 2711-K5A8 SER. H F/W 4.20 INTERFACEALLEN BRADLEY PANELVIEW PLUS 700 2711P-B7C4D1 SER. A INTERFACE * NEW NO BOX *
ALLEN BRADLEY Y-2012-H00AA SER. B UNMP
AMTRON CU412 NSNP
AMTRON PU405 UNMP
ARCOM 7041-64021-005-101 UNMP
ASCO NP8320A175E 125/DC NSMP
ASCO NPL8320A187E 125VDC 60PSI NSNP
AVTRON M737A-1D-240-BC PULSE GENERATOR *
BAILEY IMMFP02 INFI90 NSNP
BALDOR CSSWDM3615T NSNP
BALDOR PSM2A060-PR2 VECTOR DRIVE
BANNER ENGINEERING MGE3616A 27751 NSMP
BASLER ELECTRIC 90-37000-102 MODEL MVC-108 NSNP
BAUMER FLDK 110G1003/S14
BAUMULLER DSG71-M UNMP
BECKHOFF AM8042-0F11-0000 NSFS
BELL & GOSSETT 172764 NSMP
BELL & GOSSETT 2AB CIRCULATOR PUMP 1/6 HP 1725 RPM *
BENTLY NEVADA 135613 CASE EXPANSION TRANSDUCER
BENTLY NEVADA 3300/25-03-06-06-00-00-01-00 DUAL VECTOR MONITOR
BENTLY NEVADA 3300/50-02-01-00-00 NSNP
BENTLY NEVADA 3300/80-02-00-01-00 MONITOR
BENTLY NEVADA 3500/92-04-01-00 GATEWAY *
BETA LASERMIKE LD1075XY-S (AS PICTURED) UNMP
BETA LASERMIKE LD1075XY-S UNMP
BONITRON M3452-C600 K3,A BRAKING MODULE
BRANSON 930ABO POWER SUPPLY
CHERRY LK001-A UNMP
CHROMALOX TM-6125 (155-115848-002) (141CP)
CLECO 45RNAB-2T-4 NUTRUNNER
COGNEX ISM1110-01 828-0293-1R IN-SIGHT MICRO READER
CONTROL TECHNIQUES 861122-03 MOTOR
CONTROL TECHNIQUES MGM-316-CBNS-0000 NSMP
CONTROL TECHNIQUES SP2401 NSMP
COOPER 225MTB NSMP
COOPER FMVSY1000/TT76 LUMINAIRE MODEL M05 * NEW NO BOX *
CUTLER HAMMER 7585SK-10XE 92-02069-00
CUTLER HAMMER 91-01538-05 OPERATOR INTERFACE MONITOR
DANFOSS 131L0519 NSMP
DANFOSS VLT5022PT5C20STR0DLF00A31C0 UNMP
DATA POWER 15A0069P UNMP
DATALOGIC DS8100-4000 SH1937
DELTA GBL4-F3-802-BD UNMP
DELTRAN 320-27-010 UNMP
DIAGRAPH 5760012SDP NSMP
DINGS DYNAMICS 73038-54-U3X-H NSMP
DODGE 243501 PZ TORQUE-ARM SPEED REDUCER TXT315AT * NEW NO BOX *
EATON 15CLE3-175E NSNP
EATON 5AHLE-400E NSFS
EATON 5CLE-300E CURRENT LIMITING FUSE
EATON 91-01095-00 CRT MODULE
EATON SVX050A1-4A1N1 UNMP
EATON VICKERS PVQ13-A2R HYDRAULIC PUMP 02-341630
EATON XTAE185L22TD160 NSMP
ELEKTROR RD62/FU NSNP
ELMO 3HAC4790-1 NSNP
EMERSON AX-4000-00-00-00C
EMERSON DXE-490W UNMP
EMERSON DXM-6200 NSNP
EMERSON MODEL EN-208-05-000 (960501-05) SERVO DRIVE
ENDRESS+HAUSER 80A04-ASV WAAA1AFAA
ENDRESS+HAUSER PROMAG H 53H50-10F9/0 FLOW METER
ENDRESS+HAUSER PROMASS 83 83M40-ASAAAARCBBAW UNMP
EUROTHERM 590C/0700/A/1/0/0/0/00/000 (AS PICTURED) UNMP
EUROTHERM 955D8R62 DC DRIVE
EUROTHERM 955L8R62 DRV DC DRIVE
EUROTHERM DRIVES L5300 REV. 3.0 NSNP
EUROTHERM DRIVES L5300 REV. 4.1 NSNP
FANUC A02B-0166-C271#R LCD/MDI UNIT 7.2" *
FANUC A05B-2543-C204#EGN * NEW NO BOX *
FANUC A06B-0143-B076#0075 SERVO MOTOR
FANUC A06B-0162-B175#0006 NSMP
FANUC A06B-0205-B400#0100
FANUC A06B-0502-B004 AC SERVO MOTOR
FANUC A06B-0590-B205#7008 SERVO MOTOR
FANUC A06B-6066-H415#H500 AC SERVO SAMPLIFIER
FANUC A06B-6087-H115 POWER SUPPLY MODULE
FANUC A06B-6089-H101 SERVO AMPLIFIER UNIT
FANUC A06B-6089-H104 SERVO AMPLIFIER UNIT
FANUC A06B-6110-H006
FANUC A06B-6110-H011#N NSMP
FANUC A06B-6114-H209#N SERVO AMPLIFIER
FANUC A13B-0126-B002 UNMP
FANUC A16B-3200-0440/04C NSNP
FANUC A16B-3200-0780/03A NSNP
FANUC A97L-0118-0950 NSMP
FANUC A97L-0218-0885/33 NSFS
FANUC A97L-0218-0886/127 NSNP
FANUC A97L-0218-0887/150 NSNP
FANUC RV-250-129 REDUCER
FANUC SERVO AMPLIFIER UNIT A06B-6090-H223 *NEW*
FESTO DGP-40-150-PPV-A-B-GK-FK LINEAR CYLINDER (AS PICTURED) * NEW NO BOX *
FIREYE 25SU3-2100 FLAME AMPLIFIER 19"
FISHER CONTROLS 32-24588SVF/67CFR-362/DVC2000 NSNP
FISHER-ROSEMOUNT DPR960 492880301 SINGLE STATION MICROCONTROLLER
FLUID SENTRY PBS512M MONITORED VALVE 24VDC
FLUIDSENTRY HBV362M NSMP
FOXBORO 130MC-N4 0-100 3-15PSI NSNP
FOXBORO 43AP-FA420/PC-15 REMAN
FOXBORO 43AP-FA42NESQ18FN/725-P700X NSNP
FUJI BW630EAG NSMP
FUJI ELECTRIC AF-300G11 6KG1143020X1B1 AC DRIVE
GE FANUC A06B-0315-B001#7000 NSNP
GE FANUC A06B-0893-B390#3000 AC SPINDLE MOTOR
GE FANUC AC SPINDLE MOTOR A06B-0756-B200#3100
GE FANUC IC600CB536L NSMP
GE FANUC IC660BBD024X1 NSFS
GE FANUC IC693CPU351-KT NSMP
GEMCO 1989M16R12SEM PROGRAMMABLE LIMIT SWITCH
GENERAL ELECT 6KAF343030E$A1 DRIVE (AS PICTURED)
GENERAL ELECTRIC 193X529BBG01 NSNP
GENERAL ELECTRIC 209A1045-404-MF AK2A-25-1 600A 600V (AS PICTURED) REMAN
GENERAL ELECTRIC 765X021030 NSNP
GENERAL ELECTRIC CR305G0 NSNP
GENERAL ELECTRIC CR306G004 NSMP
GENERAL ELECTRIC CR309F000LAA * NEW NO BOX *
GENERAL ELECTRIC DS200LPPAG1AAA NSMP
GENERAL ELECTRIC DS3800HCMB1C1C W/ DS3800DCMB1D1B GENERATOR REGULATOR
GENERAL ELECTRIC DS3800HFXB1R1H EXPANDER MODULE
GENERAL ELECTRIC DS3800HPCA1F1E CIRCUIT BOARD
GENERAL ELECTRIC DS3800HRMD1C1B MICROPROCESSOR BOARD
GENERAL ELECTRIC DS3800HSHB1F1C PC CIRCUIT BOARD
GENERAL ELECTRIC DS3800HXRC1E1C w/DS3800DXRC1D1A PC BOARD RCVR.
GENERAL ELECTRIC DS3800HXRC1E1C w/DS3800DXRC1D1B PC BOARD
GENERAL ELECTRIC DS3800NCCB1H1F PC BOARD
GENERAL ELECTRIC DS3800NCID1B1A CURRENT ISOLATOR CARD
GENERAL ELECTRIC DS3800NDAC1E1F BOARD ANALOG OUTPUT
注:聯系我時,請說是在“傲立機床網”上看到的,謝謝!