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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。
6024 AERA MFC FC-786 MASS FLOW CONTROLLER TC FC-7861834 DENSEI-LAMBDA PROGRAMMABLE POWER SUPPLY GEN50-25
6351 AERA MFC FC-PA786C FC-PA786CT-BF
20770 HAYDON SWITCH & INSTRUMENT PCB STEPPER MTR CHOPPER DRIVE 75-305 40105-002
21462 KMS BEARINGS PLASTIC MOUNTED BLOCKS FPL205-AIB-3/4-6
1325 MITSUBISHI AC SERVO DRIVE MODULE MR-J2S-10B
9816 NOVELLUS HEATER PEDESTAL 02-033134-00F
9685 ESC PCB MON (96-2300-27003B) RELAY (96-2300-27002) I0188B
20587 OEM PCB ASSY VTR-P3AP3E
6362 AERA MFC FM-D880 FM-D880
6595 UNIT MFC 3000, N2, 50SLM, 500 PSI MAX UFC-3161
12750 NOVELLUS HAMILTON SYRINGE GASTIGHT 1725, 250UL 20-160221-00
6044 HORIBA-STEC MFC SEC-F730 SEC-F730MCA1-UC
21428 ALLEN-BRADLEY ULTRA3000I SERVO DRIVE 2098-DSD-005X-NV1
8127 TOKYO ELECTRON PCB U/C I/F BOARD (1808-022018-11) 1881-022018
8128 TOKYO ELECTRON PCB GAS I/F BOARD (808-521470-1) 881-521470-1
8688 TOKYO ELECTRON LOW PLATE 300MM 3M10-101634-11
20289 APPLIED MATERIALS HARNESS ASSY, MOTOR POWER 300MM CHAMBER, 2M 0140-11488
9425 APPLIED MATERIALS CLAMP ADPTR ISO 63 TO NW40 QDP80 DRY PUMP 0690-01647
T94 BROOKS BARATRON, PRESSURE TRANSDUCER, CMC SERIES,10 TORR CMCAT1122AR
7826 TOKYO ELECTRON ELECTROSTATIC CHUCK 3Z002AA-90013
5115 EBARA VACUUM PUMP INTERFACE BOX VIF70AME4
22288 NOVELLUS ASSY, CASS DOOR SENS HRNS 03-00074-00
12198 FUJIKIN DIAPHRAGM VALVE, TYPE N.C., O.P. 0.39~0.59 MPA 23727
4997 APPLIED MATERIALS BRKT GASLINE CLAMP PLATE PROD SE MKII 0021-26241
9378 REXROTH ECO DRIVE DKCXX.3-040-7
9683 LUDL MAC22 19" ENCLOSURE INTERFACE MODULE 73002005
1161 SIMCO H 166B POWER UNIT 120VAC 50/60HZ 0.25VA 4001277
8462 CELLNERGY HEATER CONTROLLER BOX TCN4S
14776 APPLIED MATERIALS BLOCKER PLATE, HE, GIGA-FILL SACVD 0021-01570
15531 APPLIED MATERIALS COVER,PEDESTAL, 150MM, CERAMIC 0200-09734
16105 APPLIED MATERIALS SHIM, CLAMPING, GAMMA CU, TITANIUM 0021-21443
17793 ADVANCED ENERGY PCB, RFDS 1500 CONTROL V2 2305174-A
18327 ADVANCED ENERGY PCB RFG 3K INTERCONNECT CE 2305211-B
18796 ADVANCED ENERGY PCB, RFG 3K INTERCONNECT CE 2305703-A
18793 ADVANCED ENERGY PCB, RFG 3K INTERCONNECT CE 2305211-B
13491 APPLIED MATERIALS PRESS. TRANSD. HRN 1-6 0140-09996
13353 VARIAN PCB, DIGITAL I/O BOARD, E15002453 E15002451
7073 ALPHA PLANETARY GEAR HEAD, 20:1 RATIO, 10MM SHAFT, INPUT 6MM ALPHIRA 040-2
22057 AUTOMATION CONTROLS MOTOR, AC-34656 676-099633-004
15272 KEYENCE DIGITAL CMOS LASER SENSOR GV-H45
8914 IWAKI PNEUMATIC DRIVE BELLOWS PUMP FF-10BT2
14995 TOKYO ELECTRON PCB, T-BAWL CONTROL UNIT, MDIF-01A, 118100054012 MDIF-01A-1
8739 CTI-CRYOGENICS ON-BOARD POWER CABLE 12FT (04D01-1084) 8112463G150
19185 APPLIED MATERIALS PIN400+M2 ASSY 0090-B4582
4078 PARALLEL AUTO SWITCH TP-401
8373 OMRON POWER SUPPLY, 24VDC 2.5AMPS S82W-103
20505 UNIPHASE HELIUM-NEON LASER HEADS W/O CABLE ADAPTER 1135P-2478
49 KLA-TENCOR PCB HEURIKON HK68/V2FA MICROCOM B-SIZE 712-450673-00
15614 APPLIED MATERIALS THREADED NOZZLE ALL CERAMIC 2.55L 110% 0200-03018
10996 APPLIED MATERIALS DOOR LP SLIT VLV WAFFLE-LESS 200MM 0021-15694
5823 LAM RESEARCH ELCTD,HP SILICON,8",SM HOLE 839-443215-401
14856 APPLIED MATERIALS CYL AIR 1 1/8BOREZ1-1/4 STRK 3020-01093
13102 PALL ULTRAMET-L4000 FILTER ASSY, 3000 PSIG, ?" GASKET SEAL GLFF4000VM4
18814 NOVELLUS CABLE ASSY, MFC N J8, MFC N, 1.5M 03-427261-22
22136 SHINA MICROSTEP DRIVER S202
7766 VERTEQ MATCHING TRANSFORMER 1069347.3
17784 HASTINGS INSTRUMENTS DUAL SENSOR VACUUM GAUGE 2002
17778 APPLIED MATERIALS CABLE ASSY 0620-02245
13209 KEYENCE SAFTEY LIGHT CURTAIN TRANSMITTER & RECEIVER GL-S16FH-R GL-S16FH-T
10297 BROOKS ROBOT CONTROLLER + EMERGENCY STOP TT1ENR2-1-TVS-BROOKS8
6098 UNIT MFC 8560 SERIES UFC-8565
5914 LAM RESEARCH PCB HOIST CONTROLLER BOARD ASSY 810-802205-005
17764 APPLIED MATERIALS HARNESS, TURBO CNTRL BULKHEAD W/SMOKE 0140-36403
20992 APPLIED MATERIALS CABLE ASSY FX ROBOT MTR POWER INTERCO 0150-15825
14008 APPLIED MATERIALS JIG 6 PVD LIFT TO ROBOT CAL PLATE 0270-20061
19160 LASER DRIVE LASER HEAD POWER SUPPLY 111-2390-6.5-TTL-BRH-2
9890 SORTIMAT VIBRATION REGULATOR SMS 101A
6419 AERA MFC, PRESSURE INSENSITIVE FCPIR981C4VX9THA
5800 OMRON POWER SUPPLY DC24V1.1A S82J-6224
1496 APPLIED MATERIALS THROTTLE VALVE DELT W/ 5-PHASE STEPPING MOTOR 0010-76175W
13128 STAUBLI ROBOT CONTROL TEACH PENDANT SP1 D21142102
16308 GRANVILLE-PHILLIPS 352 GAUGE CONTROLLER 352001
79 EATON PCB CASSETTE STEPPER CONTROLLER, D-1404080 D-1504080
12417 ADVANCED ENERGY APEX 1513 RF GEN,1500W,13.56MHZ,0190-19022-001 3156110-005
22577 DELTA TAU UMAC AC POWER SUPPLY, 603269-106, LFVLT130-4102 ACC-E1
10442 OAKTON WATERPROOF METER W/ PROBE CON 150
665 OERLIKON LEYBOLD PENNINGVAC TRANSMITTER, P/N: 15734 PTR225
20849 KLA-TENCOR PCB, PHX E84 CONTROLLER W/ PCB 196918A-02 0116358-001
14111 TEL PCB BIN IF BD 208-600708-1 W/ 4X 280-000500-1 281-600708-1
14089 ASYST PCB, POWER DISTRIBUTION 3200-1061-01
12998 MILLIPORE IN-LINE GAS FILTER, MAX 600 PSI WGGB06WS1
21006 APPLIED MATERIALS CABLE ASSY PLATEN 4 MTR PWR REFLEXIO 0150-42155
21930 FEI ENHANCED ETCH GAS INJECTION PROBE, 18098 20093-A
20748 JASCO PCB, POWER CONT, P/N: 6586-A510A 6586-60EIA
7958 ASML LASER LAMP ASSEMBLY 4022.639.92101
20608 ESCAP DC SERVO MOTOR, HN.08.01 P310.170.50
20762 OPTIMISED CONTROL PCB ASSY, D576 KCL2871
6056 SAM MFC SFC-480 MASS FLOW CONTROLLER SFC480MC-4VQ
7738 TELEBYTE FOUR CHANNEL FIBER OPTIC MULTIPLEXER 273
18934 LAM RESEARCH CABLE ASSY, 49P-X2 AC POWER, 1M 853-802770-002
19676 APPLIED MATERIALS HOSE, ASSY, CNDCTV, 3/8TFE/TBG,72LG, 1.8M 0010-37171
9817 APPLIED MATERIALS HEATER 0040-36180 REV P8
12760 THERMO SCIENTIFIC FH100M PERISTALTIC TUBING PUMP SYS, 2-200RPM 72-320-048
15027 PANALYTICAL XRD GLASS TUBE X-RAY,FINE FOCUS MO,2000W PW2215/20
11673 APPLIED MATERIALS CFA BULGIN PSU OUTPUT, CABLE, 0240-97051 0150-95168
12891 OEM GATE PLATE W/ BALL GUIDANCE, 19.5" x 15" 83469-R1
6581 HORIBASTEC CRITERION MFC, GAS: N2, 200SCCM, AMAT 0190-47277 D514MG
9271 KYOWA OPTICAL FLUORESCENT RING ILLUMINATOR FL-10RB
22067 YASKAWA ELE AC SERVO MTR W/ REDUCER CP-14C-10-J602A-SP SGMAH-A3BAAJ361
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