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集散控制系统（Distributed Control System－DCS）集计算机技术、控制技术、通信技术、CRT技术于一体，广泛应用于生产过程控制系统。随着计算机和网络技术的飞速发展，产生了一种新型的控制系统———现场总线控制系统（Fieldbus Control System－FCS）。但国内生产企业的情况是：大多数企业还处于模拟仪表和人工控制的阶段，采用DCS控制系统的企业仍是少数。由于DCS应用广泛、技术成熟，在现有的技术条件和市场条件下，FCS还不能完全取代DCS，而且目前现场总线设备和系统还十分昂贵。因此，除了新建企业外，国内企业在较长时间不可能全面采用现场总线技术，而必须走逐步发展、过渡的道路。 ??我们在上海石化股份公司环保部水质净化厂监控系统的改造项目中，对3个生产单元已有的DCS和PLC进行改造，增加通信功能，实现总调度室对各生产装置的集中监控。 2?系统改造方案?? 根据水质净化厂各生产单元的功能和建设阶段，分为厂外调节池、污水一段、氧化沟、四期污水处理、污泥脱水、污泥干化6个生产单元。另外，在厂部设有总调度室，但是总调度室的监控水平较为落后，改造之前基本上不能对各个生产单元进行监控。为了适应生产需要，提高生产效率，改善操作条件，加强监控手段，确保各生产装置的正常运行，急需对各生产单元和总调度室进行技术和设备的更新改造，从而能在总调度室对各装置进行监视管理，及时了解各装置的运行情况，达到指挥及时和调度准确的目的。 2．1?现场监控系统的改造 ??现场监控系统的改造要充分利用原有仪表和设备，主要考虑可靠性和实时性。首先对自控程度较高的3个单元进行改造（系统结构见图2—1）： ??四期污水处理生产单元控制设备配置了两套ALLEN－BRADELY公司PLC设备。25块开关量输入信号卡，可采集384点信号；7块开关量输出信号卡，可输出112点信号；3块模拟量输入信号卡，可采集24点信号。两套AB—PLC通过DH＋（数据高速通道）实现数据共享。在原有的现场控制计算机上分别增加以太网卡，通过以太网将实时数据送到总调度室处理。??输出192点信号；1块模拟量输入信号卡，可采集8点信号。系统运行采用遥控开关操作与全模拟流程盘显示。在原有的Siemens S5－115UPLC上增加RS－232通讯模块（CP524）和1台现场操作站，用点对点方法连接，使PLC的数据通过现场操作站送到以太网上，与总调度室监控计算机通信。但RS－232传输速率只有9600bps，操作站仅对现场起到监视作用
14842 APPLIED MATERIALS HOSE ASSY TFE/SST-BRAID 5/16IDX9.25L S 3400-0000214841 APPLIED MATERIALS HOSE ASSY TFE/SST-BRAID 5/16IDX12"L SEA 3400-00003
16506 SMC 2 SLOTS PNEU MANF W SOLENOID VLV 02-147128-00 17-146883-00 US8187-4
19287 DAIFUKU RM/TFE/CONV.MAINTENANCE UNIT CONTROLLER, 7A00981HA2 AGH8AA11
19755 APPLIED MATERIALS SCR PN HD 6-32 X.44 HAST 0020-30895
14450 APPLIED MATERIALS HOSE ASSY FLEX BRAID 1/4IDX23.5L 1/4VC, 2FT 3400-01134
14906 WASCO VACUUM SWITCH, 30"HG, 1A, 115 VAC SV129-31S3C/7774
15266 ORIENTAL MOTOR PCB, 5-PHASE DRIVER, EB2276-4G, EB2277-4G A4509-048
16599 PISCO 10 SLOT VACUUM GEN ASSY W/FVUS011-NA VKMH05W-S5/3253/8S2G-B10-NA-VBS
17514 SMC 8 SLOTS VLV MANF + VLVS W/ VACUUM SWITCH ZSE3-0X-21 VJ324M & VJ314
7330 IFM SMARTLINK DP PROFIBUS AC1375
157 ASML PCB POWER SUPPLY INTERFACE 4022.436.1609
21750 ORIENTAL MOTOR VEXTA 2-PHASE STEPPING MOTOR W/ BALL SCREW C9337-9212KM
6138 CELERITY MFC IN3XP MASSS FLOW CONTROLLER BBYLUA002
6570 BROOKS MASS FLOW CONTROLLER, GAS: AR, 300 SCCM GF120CXXO
10943 APPLIED MATERIALS ASSY, SLIT VALVE, METAL ETCH, VITON 0010-70615
5453 ECI TECHNOLOGY PSD/3 SYRINGE PUMP, VALVE LU0970
20580 EMI PCB ASSY, SUNG WEI 11620-01P-707(E1) 098-11620-00
20961 OMRON PCB, TEMPERATURE CONTROLLER, 3385804-8C E5ZT-N08TC01
20913 APPLIED MATERIALS HARNESS ASSY, DR 11-12-13-14 MTR ENC 0140-70601
20910 APPLIED MATERIALS HARNESS ASSY LL MOTION SV I/O PRODR XP 0140-62711
14130 MDC SYNCHRONOUS STEPPING MOTOR, 670000 BRM-133
18685 APPLIED MATERIALS HEATER JACKET SLEEVE 1410-02438
18684 APPLIED MATERIALS HEATER JACKET SLEEVE 1410-02437
19922 FUJIKOKI PRESSURE SWITCH VDP 20TF
18683 APPLIED MATERIALS HEATER JACKET SLEEVE 1410-02418
19147 ADVANCED DELIVERY & CHEMICAL SYSTEM PCB ASSY 969
8230 DAINIPPON SCREEN FILTER BOX ASSY 2VC48054
7961 INTEGRATED DYNAMICS ENGINEERING PREAMP FOR MAXCON 1000 871006-03
2696 TDK CORPORATION POWER SUPPLY, 100-240V 0.8-0.4A 50-60HZ RKW05-10RC
9244 BIMBA ROTARY CYLINDER PT-074180
12019 KOGANEI ELEAVE ELECTRIC HAND W/ EWHC-NH NHB5749 & ACCS. EWHA12A-C-5L
13233 TEXAS INSTRUMENTS PCB, READER SYS CTRL MOD W/RI-STU-MB6A-03 RI-CTL-MB6A-03
44 TOKYO ELECTRON PCB, TTLA08-13 F-MFC_AI_4, 3880-200122-11 3895-120917-11
6039 HORIBA-STEC MFC Z500 SEC-Z522KX
4987 APPLIED MATERIALS HINGE, GENERATOR RACK, PRODUCER SE 0015-01466
661 CONTROLAIR INC I/P TRANSDUCER ELECTROPNEUMATIC TYPE 500X 500-AH
12077 ELMOTEC CONTROLLER LVMS 4800R2
14888 APPLIED MATERIALS I/O BLOCK, 300MM MAINFRAME DEVICE NET, DIP294 0190-13220
16900 APPLIED MATERIALS MOD PWR DRIVER CONTROL MA-CH 0150-08273
14084 TOKYO ELECTRON PCB, TOUCH SENSOR II, 1208-001167-11 1281-001167-1
19516 DIGITAL DYNAMICS PCB ASSY, SIO/SSIOC I/O VER2 005943-B
10534 SMC SI UNIT 16-PORT PNEUMATIC MANIFOLD (IN50310) IN503-09
2716 DIGITAL POWER CORP POWER SUPPLY US250-124
16706 APPLIED MATERIALS HARN ASSY, ENCODERANDHOME SENSOR DRIVER, D 0140-76929
15220 LAM RESEARCH WELDMENT DUAL GAS INJECT 2300 839-016784-002
4173 SIEGER ELECTROCHEMICAL TRANSMITTER SERIES 2000 02000-A-2134
10503 COGNEX IS5413-00 SMART CAMERA W/ PENTAX LENS 800-5830-4R A
973 SWAGELOK FLEXIBLE METAL HOSE SS-FM8RM8RF8-48
9721 SEW EURODRIVE BRAKING RESISTOR (826 269 1) (BW 100-005) 802 272 0
9112 LAM RESEARCH KLA-TENCOR VIDEO FRONT END 2 ES20XP 740-613212-000
11273 IWAKI METERING PUMP EH-E56VC-20EPE5
17550 BANNER WORLD-BEAM MINIATURE SELF-CONTAINED SNSR Q12AB6FF30
22056 AMETEK STEPPER LINEAR ACTUATOR E35H4J-2.33-A04
9030 VARIAN JUNCTION BOX CHT-100 FY102-10100B
268 LAM RESEARCH PCB, EDGE DETECTOR BREAKOUT BOARD 810-17071-001
19562 LAM RESEARCH BAFFLE PLATE 8'' 715-011913-083-H-1011232-AUK-15-132-0835
21766 NIDEC SERVO STEPPER MOTOR W/ ENCODER RENCO-R35I KH56KM2B082
21811 YASKAWA ELECTRIC AC SERVO MOTOR W/O ENCODER COVER SGM-01U3B4L
21804 FAULHABER DC SERVO MOTOR W/ MINIMOTOR 23/1 66:1, P/N: 942193 2842S012C
12810 CTI CRYOLINE PRESSURIZED STAINLESS STEEL HOSE,10FT LONG 8043074
8646 OMRON PANEL METER K3NX-VD1A-T1
7528 TOKYO ELECTRON ELECTRODE BOTTOM, P/C (85P-ESC-NW2-UP) ES1885-023137-17
12091 MITSUBISHI 3 PHASE AC SERVO MOTOR, 106V, 100W, 3000R/MIN HF-KP13
19384 VIPA DIGITAL INPUT MOUDLE, DI 16XDC24V VIPA 221-1BH10
9666 CTI CRYO-FLEX HELIUM LINE/HOST, 14' 3/4" 8043086G168
10322 RKC REX-C100 TEMPERATURE CONTROLLER C100FK02-V*GN
1430 PULNIX COMPACT MONOCHROME CAMERA TM-7CN
18419 LOVE CONTROLS CORP SELF TUNE PLUS TEMPERATURE CONTROLLER 16111
1236 JVC 1/2 DIGITAL CCD CAMERA TK-C1381EG
10534 SMC SI UNIT 16-PORT PNEUMATIC MANIFOLD (IN50310) IN503-09
9001 EBARA ROUGH PUMP CABLE 140INCHES (9A82) A10S
15243 ROSS ENGINEERING DIGITAL VOLTMETER/AMPLIFIER VMD2A
10044 TELI CCD COLOR CAMERA W/ TAMRON LENS 1:1.6 (TK4498A5 01) CS5260DP
10254 ALLEN-BRADLEY FLEX I/O OUTPUT MODULE 4PNT ANALOG 12BIT(1794-ADN) 1794-OF41
12832 CTI-CRYOGENICS ON-BOARD WATERPUMP 8116340G001
12106 FESTO GUIDE UNIT FOR ISO CYLINDER, P/N: 33481 FEN-12/16-125-KF
12702 HP PCB, JET DIRECT PRINT/ETHERNET CARD 10BASE-T 5182-4752
5647 NIKON MICROSCOPE OBJECTIVE LENS BD PLAN 60/0.80 210/0
3518 DIAVAC LIMITED CCG & 2CH PIRANI GAUGE CONTROLLER PC-3DA
2162 LAMY NOSE LAMINATOR 220V 50/60HZ 240W I-LAMI-100
12962 ADIXEN ALCATEL SINGLE-CHANNEL GAUGE CONTROLLER, P/N: 112711 ACS2000
11478 BIRD LINE SECTION, RADIO 8890-050
5290 VERIFLO HIGH PURITY MANIFOLD VALVE P/N: 54012096 930Y2NC/NCSLSO7148
4721 YASKAWA AC SERVO MOTOR, 200V 750W 5.4A SGMAS-08ACA21
19161 THK LINEAR ACTUATOR KR26
21886 XYCARB CERAMICS 200MM, RNG, HTEDG, AMT, AFTMKT, QTZ 10682005
6026 AERA MFC FC-D985C MASS FLOW CONTROLLER TC FC-D985CY-BF
4020 LAM RESEARCH LOWER MATCHBOX CTLR (DC) 810-034802-001 853-480133-001-3999
10710 VERIFLO HIGH PURITY VALVE DIAPHRAGM, SPRING 45700041
11045 YASKAWA AC SERVO MOTOR, 3000RPM SGMAS-C2AGA-SU12
12921 TELEDYNE ISCO X-Y FRACTION COLLECTOR FOXY 200
11888 KOLLMORGEN DIGITAL SERVO AMPLIFIER, S3030 1-NA-SB
B187 MEGAWAVE ULTRASONIC GENERATOR ME-994P601CA21
7208 LEUZE LUMIFLEX COMPACT LIGHT CURTAIN RECEIVER CR30-750
7970 KEYENCE SAFETY LIGHT CURTAIN RECEIVER PJ-V20R
2097 ASML POWER SUPPLY SVG 4022.472.8841
21950 TESCOM PRESSURE REGULATOR, MAX 0.20 MPA/30 PSIG 12-1A11AADM6DM6Z
2809 COSEL POWER SUPPLY, AC100-240V 50-60HZ P15E-24
1911 MITSUBISHI MELSERVO AC SERVO MR-H20A
14115 TOKYO ELECTRON PCB ASSY, TAB218-1/ BTM2-LF 2L81-050040-11
21755 ORIENTAL MOTOR STEPPING MOTOR, 0.25DEG/STEP, DC 1.5A PKP223D15A-SG7.2
4083 NAGANO KEIKI SEKAKUSHO ELECTRONIC PRESSURE SWITCH (PRESSURE RANGE 0-3) CE10
15243 ROSS ENGINEERING DIGITAL VOLTMETER/AMPLIFIER VMD2A
8643 APPLIED MATERIALS 5000 CLEANROOM SLIT VALVE ''S'' 513 CHEMRAZ 0240-76507
6316 AERA MFC FC-PA785 MFC FC-PA785Y-BF
7798 LAM RESEARCH LONWORKS, VALVE CONTROL NODE 710-002895-001 810-002895-002
10480 EUTECH INSTRUMENTS WATERPROOF PORTABLE METER COND610
7848 DAINIPPON SCREEN ON/OFF MOTOR CONTROL BOX HEMK-001
5276 PACIFIC SCIENTIFIC POWERMAX II 1.8 DEGREE STEP MOTOR P21NSXC-LDN-M1-02
19161 THK LINEAR ACTUATOR KR26
21886 XYCARB CERAMICS 200MM, RNG, HTEDG, AMT, AFTMKT, QTZ 10682005
注：联系我时，请说是在“傲立机床网”上看到的，谢谢！
