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集散控制系統(tǒng)（Distributed Control System－DCS）集計(jì)算機(jī)技術(shù)、控制技術(shù)、通信技術(shù)、CRT技術(shù)于一體，廣泛應(yīng)用于生產(chǎn)過(guò)程控制系統(tǒng)。隨著計(jì)算機(jī)和網(wǎng)絡(luò)技術(shù)的飛速發(fā)展，產(chǎn)生了一種新型的控制系統(tǒng)———現(xiàn)場(chǎng)總線控制系統(tǒng)（Fieldbus Control System－FCS）。但國(guó)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(yīng)用廣泛、技術(shù)成熟，在現(xiàn)有的技術(shù)條件和市場(chǎng)條件下，F(xiàn)CS還不能完全取代DCS，而且目前現(xiàn)場(chǎng)總線設(shè)備和系統(tǒng)還十分昂貴。因此，除了新建企業(yè)外，國(guó)內(nèi)企業(yè)在較長(zhǎng)時(shí)間不可能全面采用現(xiàn)場(chǎng)總線技術(shù)，而必須走逐步發(fā)展、過(guò)渡的道路。 ??我們?cè)谏虾Ｊ煞莨经h(huán)保部水質(zhì)凈化廠監(jiān)控系統(tǒng)的改造項(xiàng)目中，對(duì)3個(gè)生產(chǎn)單元已有的DCS和PLC進(jìn)行改造，增加通信功能，實(shí)現(xiàn)總調(diào)度室對(duì)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(shè)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(gè)生產(chǎn)單元。另外，在廠部設(shè)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(duì)各個(gè)生產(chǎn)單元進(jìn)行監(jiān)控。為了適應(yīng)生產(chǎn)需要，提高生產(chǎn)效率，改善操作條件，加強(qiáng)監(jiān)控手段，確保各生產(chǎn)裝置的正常運(yùn)行，急需對(duì)各生產(chǎn)單元和總調(diào)度室進(jìn)行技術(shù)和設(shè)備的更新改造，從而能在總調(diào)度室對(duì)各裝置進(jìn)行監(jiān)視管理，及時(shí)了解各裝置的運(yùn)行情況，達(dá)到指揮及時(shí)和調(diào)度準(zhǔn)確的目的。 2．1?現(xiàn)場(chǎng)監(jiān)控系統(tǒng)的改造 ??現(xiàn)場(chǎng)監(jiān)控系統(tǒng)的改造要充分利用原有儀表和設(shè)備，主要考慮可靠性和實(shí)時(shí)性。首先對(duì)自控程度較高的3個(gè)單元進(jìn)行改造（系統(tǒng)結(jié)構(gòu)見(jiàn)圖2—1）： ??四期污水處理生產(chǎn)單元控制設(shè)備配置了兩套ALLEN－BRADELY公司PLC設(shè)備。25塊開(kāi)關(guān)量輸入信號(hào)卡，可采集384點(diǎn)信號(hào)；7塊開(kāi)關(guān)量輸出信號(hào)卡，可輸出112點(diǎn)信號(hào)；3塊模擬量輸入信號(hào)卡，可采集24點(diǎn)信號(hào)。兩套AB—PLC通過(guò)DH＋（數(shù)據(jù)高速通道）實(shí)現(xiàn)數(shù)據(jù)共享。在原有的現(xiàn)場(chǎng)控制計(jì)算機(jī)上分別增加以太網(wǎng)卡，通過(guò)以太網(wǎng)將實(shí)時(shí)數(shù)據(jù)送到總調(diào)度室處理。??輸出192點(diǎn)信號(hào)；1塊模擬量輸入信號(hào)卡，可采集8點(diǎn)信號(hào)。系統(tǒng)運(yùn)行采用遙控開(kāi)關(guān)操作與全模擬流程盤(pán)顯示。在原有的Siemens S5－115UPLC上增加RS－232通訊模塊（CP524）和1臺(tái)現(xiàn)場(chǎng)操作站，用點(diǎn)對(duì)點(diǎn)方法連接，使PLC的數(shù)據(jù)通過(guò)現(xiàn)場(chǎng)操作站送到以太網(wǎng)上，與總調(diào)度室監(jiān)控計(jì)算機(jī)通信。但RS－232傳輸速率只有9600bps，操作站僅對(duì)現(xiàn)場(chǎng)起到監(jiān)視作用。
4421 JASCO SUPERCRITICAL FLUID CHROMATOGRAPHY 44MM I.DX250MML22454 VARIAN TOOL, CAM CATHODE IHC E17300480
15624 LAM RESEARCH ASSY,CAP,ELECTRODE,ESC 8",SEMI 839-440462-508
14170 MELLES GRIOT LASER HEAD 05-LHP-121-495
1732 MKS HIGH VACUUM PNEUMATIC VALVE, 796-003146-001 93-5024
3141 ASML LASER ASSY 4022.436.1723 112052-8
9870 B&R 28 SLOT X20 I/O SYSTEM, PS9400, DI8371, DO8322, PS2100 X20 BC 0063
12759 BOECO MAGNETIC STIRRER WITH HOT PLATE MSH-420
T160 MKS BARATRON VACUUM SWITCH,TYPE 141, LAM P/N: 853-031469-003 141A-12737
15724 LAM RESEARCH PCB 3-AXIS STEPPER DRIVER I/F W/ LCM-H02004DSF 810-066590-004
879 ZEISS PCB, 5X(AXICOM V23105A5305A201), 24V 348224-9039-100-3901-100
T245 MKS PRESSURE TRANSDUCER, 10 TORR 626A11TBE
20782 ASTRONIX PCB ASSY MD.S-2
20786 TJA / BAIRD PCB ASSY, 13924000, 13924100 13924200
20777 PLOTECH PCB ASSY 3378-2187A
20765 SALICRU PCB ASSY CI-235-15
1236 JVC 1/2 DIGITAL CCD CAMERA TK-C1381EG
2388 WAHL PLATINUM-RTD DIGITAL HEAT-PROBER THERMOMETER 392MVX
12838 TOKYO ELECTRON PCB, TAB22A-1/PURF2-LF W/ 2X 2L81-050032-11 2L81-050039-11
5279 TECHCON SYSTEMS DC SERVO MOTOR HEDS-5540 A01
5553 VERIFLO REGULATOR P/N 45700472EV SQ140E502PUPGPAEV
12395 LAMBDA POWER SUPPLY, 24V, 5A JWS120P-24
8989 MITSUBISHI POSITIONING UNIT AJ65BT-D75P2-S3
4992 APPLIED MATERIALS FLEX 3 E84 POD D LOOPBACK ADAPTOR 0150-05435
1216 MITSUBISHI MELSEC PROGRAMMABLE CONTROLLER FXON-24MR-ES/UL
12348 COMET VACUUM CAPACITOR, 50-500PF, 12/7.2KV CVUN-500BC/12-BAJL
6164 UNIT MFC ULTRACLEAN METAL SEAL UFC-8160
2102 OMRON TEMPERATURE CONTROLLER E5ZT-N08TC01-2
6346 HORIBA-STEC MFC SEC-E440 SEC-E400JSERIES SEC-Z313M
4380 APPLIED MATERIALS BRKT LEFT MOUNTING CHBR-MF RPG CHBR 300MM 0020-46291
7180 APPLIED MATERIALS FORGED 8 DXZ HEATER, HI-TEMP CERAMIC HEATER 0040-39240
22282 JUSUNG PCB, T/C NOISE FILTER BOARD, 57602002 V3764
11203 ULVAC SUBSTRATE HEATER PSH-112MT
21994 APPLIED MATERIALS PCB MOTION CPCI 96 I/O DELTA 0190-15384
12833 NOVELLUS CNTRL HDSIOC 0 C3SPD CONCEPT 3 SPEED FIRMWARE 4.72 02-280596-00
12047 FESTO PRESSURE SENSOR SPAB W/DISPLAY,P/N: 552363 SPAB-P10R-R18-2P-K1
1059 VEXTA ORIENTAL STEPPER MOTOR BXD30A-C
10066 APPLIED MATERIALS ASSY, 4-WAY DOUBLE VALVE 0090-20044
12676 VERIFLO PRESSURE REGULATOR, P/N: 54018390 HF1215SK4PBVY8T8376
6047 MILLIPORE MFC TYLAN 2960 SERIES FC-2960MEP5-261R
19069 PITTMAN DC SERVO MTR 30.3 VDC 325.5:1 RATIO VARIAN E12001311 GM9633H586-R2
11793 LAM RESEARCH PCB, A4 GAS BOX INTERFACE, VMIVME MODEL 5530S 810-077433-002
13113 MOOG FULL DIGITAL SERVODRIVES FOR BRUSHLESS MTR, 3?, P/N: CZ1008EVA DS2000
2739 MIRAK THERMOLYNE DIGITAL HOT PLATE HP72620-26
5822 APPLICATIONS SPECIFIC COMPUTERS COMMUNICATION BOARD W/ SST 5136-PFB 243-003
21282 IAI PCB, IACP480112G/R ED-048-9-001-0-000-3
21283 IAI PCB, IACP480124G/R ED-048-9-001-0-000-3
2604 DAIHEN CPI CONTROLLER PN:3D80-001919-11 MDM-01A
1732 MKS HIGH VACUUM PNEUMATIC VALVE, 796-003146-001 93-5024
1667 CHINO DB 500 TEMPERATURE CONTROLLER DB510-010
9721 SEW EURODRIVE BRAKING RESISTOR (826 269 1) (BW 100-005) 802 272 0
8945 MYKROLIS IMPACT 2 V2 0.01 UM OM A2AT20M01
3329 METROHM TITRATOR DOSING UNIT, 6.3026.250 805
11609 RUDOLF EARTH FAULT RELAY 1CO 3P/4W
5523 HITACHI KOKUSAI ELECTRIC FURNACE GAS CONTROLLER CX3202
22020 ADVANCED ENERGY SEKIDENKO OR4000T OPTICAL FIBER 955-3007-02
4425 SCHUMACHER VALVE ASSEMBLY W/ WHITEY SS-45XVCR8 EMPTY BK200CVD
8980 APPLIED MATERIALS MKS REV3.0 G4 PLUS 4-PORT UPA 300MM REFL 0190-38324W
9105 WATLOW MINI CONTROL CONSOLE MINI-ER30-000E-0008
5243 ASCO RED-HAT II BRASS SOLENOID VALVE, 302373 8210G1
T204 MYKROLIS MILLIPORE CML SERIES BARATRON CAPACITANCE GAUGE, 0-10TORR CMLB1106
4418 HAKKO DIGITAL FINE THERMO CONTROL DG2-100
12561 FUJIKIN DIAPHRAGM OPEN/CLOSE VALVE 70930
11560 ALLEN-BRADLEY 16PT CONTROLLOGIX ANALOG I/P MODULE,96240874 A01 1756-IF16/A
486 APPLIED MATERIALS DUAL SNSR END POINT DETR 200MM 0010-06285
13110 HP HP 75000 SERIES C 64-CHANNEL MOSFET SWITCH VXI MODULE Z2469A
9864 APPLIED MATERIALS ROBOT CALIBRATION CABLE 0150-76116
19150 SONY CCD IND CAMERA W/ X2 TV EXTENDER (1:1.16 XC-ST50
1775 TDK CORPORATION INTERFACE BLOCK DC POWER SUPPLY MSE181G
20766 SVG PCB ASSY 99960-830
13934 APPLIED MATERIALS PCB, PERSONALITY BOARD 0100-66025
9399 PULS DIMENSION QS10 POWER SUPPLY QS10.301
20193 DIGI-CON PCB ASSY 5401-415
20366 SANYO DENKI MOTOR 106-4202-21E
20927 APPLIED MATERIALS HARNESS ASSY 0140-62527
20192 DIGI-CON PCB ASSY 5401-413
10759 PARKER COMPUMOTOR AC DRIVE CP*48660109
22426 PLASMA-THERM ALIGNMENT PIN, FTR PLT, 11 INCH GEN 4 (CLEANED) 102155982
93 EATON PCB REMOTE LOG A/D BD, 1401590 1501590
10286 PFEIFFER VACUUM TURBO PUMP TPH 170
17020 VIEWTEK PCB, VTEK 1024 SERIES, ASSY 170000-01 VTEK1024CV
13231 APPLIED MATERIALS JIG,CAL,CASS PLACEMENT,200/300MM FE-PROD 0270-35353
6025 AERA MFC FC-985C MASS FLOW CONTROLLER TC FC-985CT-BF
1172 OMRON PROGRAMMABLE CONTROLLER C200HS-CPU21
14251 COMDEL RF POWER MATCHING BOX, P/N 27-296658-00
12754 FISHER SCIENTIFIC ACCUMET BASIC PH METER AB15
5885 AGILENT TRIPLE OUTPUT DC POWER SUPPLY E3631A
10850 MITSUBISHI MELSEC CC LINK RS232 INTERFACE MODULE AJ65BT-R2N
6086 STEC LFC LF-210A (IV-LF-COMBO-02) LF-210A-EVD
2258 ISE ELECTRONICS PCB, CU16026SCPB-S20J FLOURESCENT VACUUM DISPLAY PW-98-101
8255 APPLIED MATERIALS RING WAFER LIFT 200MM W SUPPORT 0020-10192
1344 APPLIED MATERIALS GAS LINE REDUCED FTG AMPULE 0050-25123
16683 APPLIED MATERIALS EMITTER/RECEIVER OTF 300MM 0020-13836
6018 AERA MFC FC-785XC MASS FLOW CONTROLLER TC FC-785XCBF
3736 PI DIGITAL PIEZO CONTROLLER E710K038X E-710K038
3278 APPLIED MATERIALS VLV PNEU BLWS 2 WAY MINI NC-11 SS-BNV51-C 3870-01245
9633 NOR-CAL INTELLISYS IQ SERIES NC TBV-IQA-200-NW-50-S02
3304 NSK ESA SERVO DRIVER ESA-0408A35-21.1
7040 ALLEN-BRADLEY ANALOG INPUT MODULE (12BIT) P/N:96188672 G01 1771-IFE/C
D50 BANNER GLASS FIBER OPTIC CABLE ASSY 55441
12870 VEXTA BRUSHLESS DC MOTOR, 75W, 3000R/MIN K0366-M
19746 APPLIED MATERIALS BODY W/ TUBES KF40 FBA 793713-ECOSYS 730-0008-01
14671 APPLIED MATERIALS CAPACITOR, 1.1UF, 2500V, 772224B, JH887-RO 0690-00498
15778 MINI-CIRCUITS QUADRAPLEXER + POWER DECTR 685-089283-004 ZB4PLX-101-4-S
20323 APPLIED MATERIALS SPR GAS 4'''' STRK 232LBS #4 12.79EXT 3780-00369
20783 THERMO SCIENTIFIC PCB CTRL BD W/ CIC0000551 DISPLAY BD SP/HP CIC0000557
10262 APPLIED MATERIALS SOURCE TOPCAN ASSY 0040-02496 (TETRODE) 9010-00427
21839 PANASONIC AC SERVO MOTOR MSMA011ABF
21713 PARKER ELECTRONIC PROPORTIONAL CONTROL VALVE EPC-1001
17191 SHIBASOKU PCB, BUS INTERFACE, 1K4PT21A1004, P150952B-2 S150952B-2
17639 SEIKO SEIKI PCB, SR2 POWER SUPPLY BOARD, 17-983T0020 P005Y008Z895-3
7462 VAT BELLOWS MANUAL ANGLE VALVE, A-266085 26332-KA01-0002
注：聯(lián)系我時(shí)，請(qǐng)說(shuō)是在“傲立機(jī)床網(wǎng)”上看到的，謝謝！
