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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(fā)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(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)控系統的改造 現場監(jiān)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(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。Siemens 3VL9300-3MN00
Applied Materials AMAT Transducer Meter, 1040-01218
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AMA11732 APPLIED MATERIALS CABLE ASSY, SECOND SERIPLEX TO PLC 0150-04470
19932 ASML PCB PHILIPS WAFER-CTRL 5322 694 15491 4022.332.86322 4022 332 86322
19936 ASML PCB PHILIPS STEP MOT CTRL 5322 694 15195 4022 332 85332
11560 ALLEN-BRADLEY 16PT CONTROLLOGIX ANALOG I/P MODULE,96240874 A01 1756-IF16/A
13456 OLYMPUS AC SERVO DRIVER, DV363100-01 OTS10B
15838 DIANIPPON SCREEN DNS CERAMIC VACUUMLESS ARM 3-39-64025
9683 LUDL MAC22 19" ENCLOSURE INTERFACE MODULE 73002005
15722 NEC PCB, STRATUS MOTHERBOARD W/PC-E71400-00 PC-E70000-03
16699 APPLIED MATERIALS CABLE ASSY DNET DROP 5M RSC-RKC 0620-02788
16377 CTI CRYOLINE PRESSURIZED STAINLESS STEEL HOSE, 350PSIG, 2FT 8043436G030
13298 PORTWELL PCB, 19-SLOT (4XPCI) PICMG BACKPLANE PBP-19P4 400
16750 APPLIED MATERIALS CABLE ASSY, 50FT WTR LEAK DETECT MNFRM I 0150-21933
16307 APPLIED MATERIALS DUAL FILAMENT HOT ION GAUGE W/ SENSOR HDP100 0190-48891
17771 LAM RESEARCH CABLE ASSY, CAMERA ANALOG/COMPOSITE EXT., 7.5M 740-734526-000
19761 APPLIED MATERIALS WLDMENT, LIQ. FINAL VALVE, 6LV-BNBW4-C 0050-10584
19849 OEM HARDWARE ASSY FOR G11-00197-01 G11-00197-01
21330 APPLIED MATERIALS PNEUMATIC BLOCK 0051-03297
21325 LAM RESEARCH GASLINE 839-076829-711
21369 LAM RESEARCH GASLINE 255-06801-000
2391 OMRON TEMPERATURE CONTROLLER E5CW-QP
7540 KOMATSU MW200N SILICON WAFER STORAGE W/ 4 SILICON MW200.N.C
17707 APPLIED MATERIALS BRG 4PT CONT 8.625OD X 8ID 0190-00958
14182 LAM RESEARCH HOLDING BRAKE WARNER ELECTRIC, ERS-42 853-011141-003
16332 APPLIED MATERIALS INFICON HTR INLINE VLV VIP040-Z 0190-33740
B13 PRO-FACE GRAPHIC PANEL GP370-LG11-24V
771 FURON PNEUMATIC VALVE, NOVELLUS P/N: 34-053380-00 NV2-144NC-HP
4905 VAT GATE COMPL. 83530-R1
4101 ENDRESS+HAUSER LIQUISYS-P CPM220-21AA02
10212 APPLIED MATERIALS SEPC, LIGHT CURTAIN SENSORS, 5.X FI 0190-24830
13456 OLYMPUS AC SERVO DRIVER, DV363100-01 OTS10B
15838 DIANIPPON SCREEN DNS CERAMIC VACUUMLESS ARM 3-39-64025
16915 APPLIED MATERIALS REFLECTOR LH 0020-35683
10391 APPLIED MATERIALS FLANGE, EDWARDS PUMP, CVD EXH SW 0040-21826
3882 TDK CORPORATION POWER SUPPLY FAK05-5RO
9936 ROFIN HALTER; SHG; 5X5X18; OWC;O. JUSTIEREINHEIT 101110075
1800 STI MCF4200E DIN 081608 2X 2R CABLE WITH NICKEL PLATED 82322-0010
13722 CARL ZEISS CONTROLLER 741128
7552 SMC DUAL ROD PNEUMATIC CYLINDER CX2N15-50
21061 VAT SERIES 08.1 INSERTABLE VACUUM GATE VLV DN80 08138-FA24-0001
6408 AERA MFC FC-PA785C FC-PA785CT-BW
14438 APPLIED MATERIALS COLD HEAD CABLE 0620-01092
6590 HORIBASTEC SERIES Z700 MFC GAS: H2 1000SCCM AMAT 0190-41105 SEC-Z714AGX
949 GRANVILLE-PHILLIPS 307 VACUUM GAUGE CONTROLLER 307
21749 ORIENTAL MOTOR VEXTA 2-PHASE STEPPING MOTOR PH266-01GK
21337 APPLIED MATERIALS BRACKET ASSY, 23CM X 2.7CM 0040-38960
18784 APPLIED MATERIALS FTG TBG ADPTR 3/4-16 SAE X 9/16-18 37DEG 3300-04346
16834 PHOENIX CONTACT SENSOR/ACTUATOR BOX, P/N: 1516056 SACB-8/3-L-5,0PUR-M8
11283 APPLIED MATERIALS SHOWER HEAD, PERF PLATE TXZ 200MM 0021-35869
1243 TOKYO ELECTRONIC INDUSTRY CCD COLOR CAMERA CSU9001 CS9301
3153 APPLIED MATERIALS COVER FLOOR FRONT SECTION RIGHT OUTSIDE 0021-04776
20209 APPLIED MATERIALS ENCLOSURE, SHUTTER, 0020-28293 0020-22879
5930 KAIJO CORPORATION 5341I CLIMPULSE ULTRASONIC GENERATOR 400-28F
15510 APPLIED MATERIALS RING, PEDESTAL, ESC, 150MM, 1FL, WEB 0200-09830
16231 APPLIED MATERIALS SW VACUUM 75 TORR VCR-4 CLOSE DECREASING 0090-36126
T149 LAM RESEARCH BARATRON TRANSD 0-10 TORR TYLAN GENERAL 853-017643-001
15379 APPLIED MATERIALS PIN WAFER LIFT 200MM THIN WALL SILICO 0200-36642
17211 APPLIED MATERIALS CLAMP 8" BUFFER FROG LEG 0020-21105
1440 APPLIED MATERIALS 150MM MOLDED PEDESTAL RING ASSY 0010-00716
10210 APPLIED MATERIALS COVER INSULATOR TIN 8'' 0020-23286
17133 BECKMAN BENCHTOP PH METER, CAT NO: 143804 PHI 310
13178 ORIENTAL MOTOR BRUSHLESS DC MOTOR DRIVER BMUD30-C
17511 ALPHA MOISTURE SYSTEMS DEWPOINT METER DS1000
15675 APPLIED MATERIALS O RING,14.764 ID X .275 VITON 75 DURO 0020-35712
14118 RAMIX PCB EXPANSION MOD PMC237 W/SNP-PMC-DIG16 700422
14999 TOKYO ELECTRON PCB ASSY, ALPHA 8S BOARD, 118100053715 MC-31106A
T221 APPLIED MATERIALS HONEYWELL PR TRANSD SST H2O 0190-09287
14607 APPLIED MATERIALS PCB ASSEMBLY,CHAMBER TRAY ULTIMA POS B/D 0100-18065
T Applied Materials 0090-09145
Applied Materials ASSY 0100-14015, SCH 0130-14015
APPLIED MATERIALS AMAT 0010-00201elay, 0680-01738
APPLIED MATERIALS 0021-52192
0225-95381
Applied Materials 0100-76128
322-0103// AMAT APPLIED 0090-70003
116-0303// AMAT APPLIED 0200-09996
341-0203// AMAT APPLIED 0040-03641
AMAT Applied Materials 0041-35519
0100-00304, Applied Materials
AMAT 1350-00250
Applied Materials AMAT 0020-01416
Applied Materials Assy #0100-1401
Applied Materials AMAT 0020-10117
Applied Materials AMAT 0040-36180 KPTXZ-36180
Applied Materials AMAT 3870-01574, Nupro 6LV-D1V333P-AB
323-0302// AMAT APPLIED 0010-30230
323-0302// AMAT APPLIED 0010-30065
Applied materials 0090-05098 / 0190-27910
AMAT 0200-01155
APPLIED MATERIALS 3011-01302
AMAT Applied Materials , 0100-40013
316-0402// AMAT APPLIED 0020-35032
Applied Materials A1412168
AMAT Applied Materials 0200-36544
AMAT Applied-Materials 0100-40031
Applied Materials AMAT 5160-48437-E SE-063106
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