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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(chǎn)過程控制系統(tǒng)。隨著計算機和網(wǎng)絡技術的飛速發(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、技術成熟，在現(xiàn)有的技術條件和市場條件下，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，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)結構見圖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。Siemens 3VL9300-3MN00
2330 ASAHI KEIKI INDICATOR AM-213-13-1116136 APPLIED MATERIALS ASSY A.L.L.MTR LEFT VEXTA 0010-76430
4941 BALZERS PKR 251 COMPACT FULL RANGE GAUGE, FL-9496 BALZERS BGG26000
9034 SHINKO DIRECTLY TEMPERATURE CONTROLLER JCL-33A-R/M
3034 VEXTA AC SERVO DRIVER B1836-07150AIP
572 ION SYSTEMS NILSTAT CONTROLLER 5024(E)
439 NEMIC-LAMBDA SWITCHING POWER SUPPLY JWS100-24
21225 DELTA TAU PMAC VME BD,602199-104,602705-107,602200-103 (REFURB) 602199-504
142 HIRATA LINEAR ACTUATOR SLIDE 1001262908/10/7/Z
11150 GRANVILLE-PHILLIPS UHV-Y STABIL-ION ION GAUGE 360121
21712 MITSUBISHI AC SERVO MOTOR HF-KP13L
21840 PANASONIC AC SERVO MOTOR MSMA012C1B
21767 PANASONIC AC SERVO MOTOR MQMA012A5F
21768 PANASONIC AC SERVO MOTOR MQMA012A4F
11752 FUJIKIN DIAPHRAGM VALVE, TYPE N.O, 936585 23729
20950 APPLIED MATERIALS CABLE ASSY 0150-46753
20800 SEMPREX CORPORATION PCB, JUNCTION BOARD 103354
7538 BROOKS AUTOMATION LH VCE6 ARM ASSY LAM PN:799-900842-001 001-9060-16
654 SWAGELOK STAINLESS 3 WAY BALL VALVE SS-44XF4-1466
6087 STEC LFC LF-310A LIQUID MASS FLOW METER LF-310A-EVD
4087 IDEC POWER SUPPLY PS3L-C24AF
6415 BRONKHORST MFC HIGH TECH EL-FLOW METER CONTROLLER F-201C-GAC-88-V
842 KOKUSAI ELECTRIC ALPHA 4-WAVE ULTRASONIC GENERATOR U0600FXI
7573 APPLIED MATERIALS COVER MECHANISM GUARD ASSY 0010-70017
20337 COHERENT PCB, DSP-00B.PCB BOARD 0214-648-00
20267 APPLIED MATERIALS PIN,LIFT (QUARTZ), MOD II 0200-35486
20276 APPLIED MATERIALS HARNESS ASSY PVD SHUTTER SENSORS 0140-20694
20604 APPLIED MATERIALS PLATE,LOWER MOTOR,ROBOT EXTENSION 0020-18462
5609 APPLIED MATERIALS REGULATOR FLOW 1.0LPM W/PRESS GAUGE NH3 DETECT 3800-01117
7347 SVG THERMCO SYSTEMS PCB WTU MOTION CONTROL I/F 606180-01
6017 AERA MFC FC-780CHT
23282 BALLUFF MAGNETIC FIELD SENSOR, BMF00AR, P/N: 211816 BMF 235K-PS-C-2A-PU-02
20243 APPLIED MATERIALS WELDMENT DUAL HE MANF SACVD 0050-10076
3694 DIGITAL DYNAMICS SIOC POWER SUPPLY 27-053660-00
820 PARKER FLUID CONNECTORS CPI 8F-Q8CY-SSP
7355 BEI TECHNOLOGIES LOAD ROBOT ENCODER PN:9 E25BB-4R-SB-CCW-8CC-7406R-LED-ED25
1804 UNICORN REGULATED DC POWER SUPPLY 30V 20A UP-3020
3753 DIGI 32-PORT TERMINAL SERVER ETHERLITE 32
5064 KOLLMORGEN POWERMAX II 1.8 DEGREE STEP MOTOR M21NSXC-LSS-SS-02
2058 NIKON WAFER LOADER WL-2
9611 HP PCB AGILENT PIN BOARD (A-3821) E3120-66561
4955 APPLIED MATERIALS FORELINE THRU THE FLOOR WELDMENT 0050-60044
14780 APPLIED MATERIALS BLOCK,MIXING,CHAMBER LID,GIGA-FILL SACV 0040-36223
10440 EUTECH INSTRUMENTS PH/MV/CONDUCTIVITY/C/F METER PC 2700
20605 NOVELLUS PCB MOD CONT DC/VC CONVERTER 27-053425-00 03-053424-00
21338 LAM RESEARCH FAN MOUNTING BRACKET 714-087266-001
10076 NOVELLUS CABLE ASSEMBLY, 102347 0912 03-409637-00
12239 VERIFLO UHP DIAPHRAGM VALVE HIGH FLOW MANF, P/N: 45300401 955Y3NC/NCFSFFFB
3537 ALLEN-BRADLEY DC OUTPUT MODULE 10-60 VDC 1771-OBD C 1771-0BDC
13235 RECIF PCB, PCB0371B STDBH0371A
13445 LAM RESEARCH DISK CALIBRATION 8" 715-042856-004
14108 APPLIED MATERIALS ASSY THERMAL ELEC DRIVER 0090-09061
14218 EBARA TECHNOLOGI MOUNT BRACKET C-3106-231-0001
4583 APPLIED MATERIALS CABLE ASSY, EMO REMOTES, 0150-15262
14335 APPLIED MATERIALS OUTER SHIELD,TXZ 200MM 0021-03980
14858 APPLIED MATERIALS BLOCK ROTATION LOCK INDEXER 0020-36378
15329 LAM RESEARCH PCB, AUTOETCH 490 LRC 2896A
15338 LAM RESEARCH BELL JAR INSULATOR CAP 716-021720-001
15308 APPLIED MATERIALS LIFT PIN CONDUCTIVE, LONG 0020-32164
15348 APPLIED MATERIALS ROTATION LOCK, MANUAL INDEXER 0020-40923
15350 APPLIED MATERIALS SUPPORT ACTUATOR SHUTTER LINKAGE 0020-24781
15484 APPLIED MATERIALS CENTURA SCREEN BAFFLE ASSY CORROSION 0010-76932
7611 ESCAP DC SERVO MOTOR NFOA01A40520
15884 APPLIED MATERIALS SHAFT WING, FROG LEG 0020-20399
15894 APPLIED MATERIALS HOLDOWN RING,VIEWPORT 0030-70084
16714 APPLIED MATERIALS HARNESS ASSY, TC INTERFACE 0150-20197
16144 APPLIED MATERIALS COVER, TC AMP,DXZ 0021-09948
16145 APPLIED MATERIALS HOUSING MAGNETICALLY COUPLED ROTATION 0020-36031
16157 APPLIED MATERIALS ALIGNMENT TOOL FROG LEG ROBOT 0040-20095
16695 APPLIED MATERIALS HARNESS ASSY, TURBO INTERCONNECT, SEIKO- 0140-04033
16187 LAM RESEARCH BELLOWS, INNER GATE 839-012255-001
16721 APPLIED MATERIALS HARNESS ASSY, VME-EP, HD 0140-09506
907 APPLIED MATERIALS WELDMENT, PROCESS GAS, SIDE, DPS 0050-31429
2492 APPLIED MATERIALS SHIELD 8" PCII @C & D 0020-26588
17758 NOVELLUS CABLE ASSY, 6.5M 03-279891-00
17516 SPECTRA-PHYSICS PCB, ARM BREAK RELEASE LZT-9019
17933 PALL FILTER ASSY, GASKET SEAL GLFF4581VMM4
7661 APPLIED MATERIALS VLV CHECK RETURN ADAPTER HE 3870-03651
13249 APPLIED MATERIALS INSULATORS, LAMP CAVITY, RIGHT 0200-20162
13234 RECIF PCB, PCB0372B STDBH0372A
14136 CONDOR DC POWER SUPPLY, PCB 02-91113-0001
14295 APPLIED MATERIALS SCG100 GAUGE, 10 TORR 0190-48920
14860 APPLIED MATERIALS BRACKET, HINGE, UPPER SHROUD 0020-35789
15084 APPLIED MATERIALS CATHODE POSI DECODER 0010-00151 0100-00041
15085 APPLIED MATERIALS CABLE ASSY,INTERLOCK JUMPER 0150-35796
15349 APPLIED MATERIALS STOP ACTUATOR SHUTTER LINKAGE 0020-24782
15357 APPLIED MATERIALS SPACER LOWER GUARD BTM SHIELD 0020-02922
15513 LAM RESEARCH PLATE,LOWER BAFFLE,6" 715-028627-002
2466 PROLOG PCB, UNIVERSAL I/O CARD PWB 110494-001
55 PL PCB ASSY Z80 PROCESSOR, 108810 108811
16036 APPLIED MATERIALS FLANGE ELBOW WELDMENT, BARATRON 0050-35182
15905 VAT KIT BELLOWS FEEDTHROUGH, 790-088439-002 431380
16700 APPLIED MATERIALS PRESS. TRANS. HRN 11-13 0140-10034
16134 APPLIED CERAMICS BUFF WINDOW,QTZ 91-01920A
15736 LAM RESEARCH PCB ASSY DC CONTROLLER 810-800086-007
2508 HIRATA PCB, RELAY PROCESSOR BOARD HPC-784A
16662 APPLIED MATERIALS PCB ASSY, LOAD LOCK BEEPER 0100-35279
16947 APPLIED MATERIALS HINGE FOR ORIENTER 5200, 5500 0040-02644
17098 THERMO SCIENTIFIC SMALL TUBE PLASTIC TIP DISPENSING CASSETTE 24073290
17759 NOVELLUS CABLE ASSY, 6M 03-279882-00
18235 APPLIED MATERIALS BOX, TC COVER 0020-04608
18320 APPLIED MATERIALS BELLOWS FINGER LIFT, ALUMINUM PRODUCER 0040-49386
18254 APPLIED MATERIALS PCB ASSY, 0110-00072 0100-00072
18431 OBJET GEOMETRIES PCB, HEAD DRIVER, PCB-00001 BRD-00023
17759 NOVELLUS CABLE ASSY, 6M 03-279882-00
注：聯(lián)系我時，請說是在“傲立機床網(wǎng)”上看到的，謝謝！
