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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。
18235 APPLIED MATERIALS BOX, TC COVER 0020-0460818320 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
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
18767 OEM PCB ASSY, IIL1033A AP-1050C
18823 APPLIED MATERIALS CABLE ASSY, 3M 0140-64958
T213 LAM RESEARCH TYLAN GENERAL PR GAUGE 0-100 MTORR 853-031457-001-3-DFT
2809 COSEL POWER SUPPLY, AC100-240V 50-60HZ P15E-24
9306 ROBOHAND PNEUMATIC ACTUATOR RR-26-128
T130 MKS PRESSURE TRANSDUCER, 10TORR 852B11TCA2GA
9945 ROFIN SHUTTER RESONATOR-EXT.1064NM SH 60 101102388
10273 MYCOM 5-PHASE-SPEED STEPPING MOTOR PS566-B
7614 APPLIED MATERIALS HDP-CVD RPSC APPLICATOR 0010-18132
419 NEMIC-LAMBDA POWER SUPPLY EWS150-24 EWS-150-24
9633 NOR-CAL INTELLISYS IQ SERIES NC TBV-IQA-200-NW-50-S02
15617 LAM RESEARCH RING INSULATOR,UPPER ELECTRODE 716-011536-001
22313 ENGINEERED PARTS & SUPPLY UPPER Z-TOWER BEARING EPS40150
4360 MITSUBISHI MELSEC PROGMABLE CONTLR FX0N-8EYR-ES/UL FX0N-16EX-ES FX2N-80MR
2369 SEEK ELECTRONICS TEACHING UNIT AS-RU52
21782 MCG BRUSHLESS MOTOR W/ ENCODER C8 IB23811-1
13593 FAULHABER SERVO MOTOR W/O ENCODER NFOA01A33105
2663 LAM RESEARCH PCB, LOCKER DOOR CONTROLLER BOARD 714-008703-001
21312 APPLIED MATERIALS HEATER JACKET SLEEVE 1410-02174
21409 APPLIED MATERIALS CABLE ASSY PC BASED ENDPOINT INTERFACE 0150-09526
10467 APPLIED MATERIALS CHAMBER UPPER LINER 0021-10223
16127 APPLIED MATERIALS EXHAUST LINE 0050-76709
9570 OMRON PA203 PROGRAMMABLE CONTROLLER CPU43 W/ OCH, OC222, IPS01,
16604 APPLIED MATERIALS CARD CAGE ENCLOSURE W/0040-02005 0040-02005
7939 APPLIED MATERIALS ASSY PEDESTAL LIFT 0020-24229 0020-23753
1431 ACUITY IMAGING RVSI CIMATRIX CAMERA CM4000
3537 ALLEN-BRADLEY DC OUTPUT MODULE 10-60 VDC 1771-OBD C 1771-0BD C
12019 KOGANEI ELEAVE ELECTRIC HAND W/ EWHC-NH NHB5749 & ACCS. EWHA12A-C-5L
1702 REGAL JOINT FLOW SENSOR WITH ASSY FS-10S
5754 SIIG PCB W/PRINTER PORT J59453-2S1P1G
12065 TOKYO ELECTRON PCB ASSY FOR TS-4000Z-16 CTRL UNIT,1181-000572-19 MC-31151S
21087 LAM RESEARCH CABLE ASSY, 45CM 853-146835-001
22316 SURPASS TEFLON PRESSURE SENSOR PCM-1/4-F
19099 APPLIED MATERIALS ASSY HOUSING EEP 300MM 0040-47632 0010-10663
804 INTEVAC PCB ASSY, MULTIMEK CAP MANOMETER DISPLAY 00-706332-01
13407 HP PCB, MOTHERBOARD HP 9000/745I A2261-66006
1974 APPLIED MATERIALS SS FLEXIBLE HOSE 1/2" FITTING 3400-01076
7646 LAM RESEARCH PCB ESC FILTER BICEP II 810-006490-003
2043 WATKINS-JOHNSON PCB, WJ951 INPUT CARD PWB 902023-001
16617 APPLIED MATERIALS VENT LINE CHAMBER 3 UPPER 0050-26704
16034 APPLIED MATERIALS FLTR CRTG 5MICRON HYDROPHOBIC 4020-01039
15886 APPLIED MATERIALS BLOCK, MOUNTING, TOP SENSOR LLKA, WBLL 0020-13973
16063 APPLIED CERAMICS RING INNER,1.50" SGD 91-00709A
16139 APPLIED MATERIALS BLOCK, MOUNTING, TOP SENSOR LLKB, WBLL 0020-13975
15741 LAM RESEARCH PCB P2 MB, VME 810-800081-013
3020 APPLIED MATERIALS POSTS, ADO ALIGNMENT, 300MM FI 0020-11478
15643 LAM RESEARCH PLATE,LOWER BAFFLE 8" 715-28616-001-2
16667 APPLIED MATERIALS PLATE CONTACT DC SOURCE 13 LEFT 0020-21485
17423 APPLIED MATERIALS CABLE ASSY, EV2 IN 0150-06890
17745 APPLIED MATERIALS HOSE FITTING, MCA+ WATERBOX MOUNT 0020-01326
18074 ADVANTECH PCB, 64 CHANNEL ISOLATED DIGITAL INPUT CARD PCI-1754
14576 APPLIED MATERIALS PCB HEAD PNEUMATICS CONTROLLER (TITAN II) 0100-77055
18495 LEVITRONIX PCB, LEVIFLOW CONVERTER, 6 CHANNEL LFC-6CIO-3
18661 APPLIED MATERIALS HEATER JACKET SLEEVE 0190-45228
18807 APPLIED MATERIALS CABLE ASSY, 40CM & 6.25M 0140-25022
19571 APPLIED MATERIALS BULKHEAD,WATER,LWR CHMBR,DPS POLY 0021-70283
13074 ASYST TECHNOLOGIES PCB, FAB 3000-1241-01 3200-1231-01
13462 APPLIED MATERIALS HARNESS ASSY, SHUTTER MOTOR DRIVER (CCT) 0140-08933
13776 APPLIED MATERIALS HARNESS ASSY, GP PHOTOHELIC SW INTERCONN 0140-09379
13775 APPLIED MATERIALS CABLE ASSY SMIF ASYST 72IN 0150-00950
13712 APPLIED MATERIALS PCB ASSY, STEC MFC ADAPTOR METC 0100-35102
14336 APPLIED MATERIALS RING,ISOLATOR,TXZ 200MM SNNF 0021-35749
16701 APPLIED MATERIALS CABLE ASSY TC CHAMBER TRAY INTERFACE 0150-20641
14298 AMETEK TRACKBALL ROLLERBALL FOR PHILIPS SONOS 5500 D509200/4
2561 LAM RESEARCH PCB, P2 MOTHERBOARD, VME 810-800081-014
15642 LAM RESEARCH PLATE,UPPER BAFFLE 8" 715-28615-001-2
15803 APPLIED MATERIALS ADAPTER, WIDE BODY INDEXER CMF CENTURA 0040-13011
16556 ETO PCB, TB101 REPLACEMENT BOARD ABX-X287-C
19368 OMRON BAR CODE READER V520-R2BS-01
5073 NSK HANDY TERMINAL FHT11
6400 UNIT MFC MULTI FLO SERIES UFC-8565C
10678 LAM RESEARCH FUJIKIN PNEMATIC VALVE ASSEMBLY MANIFOLD 796-029684-321
8837 MITUTOYO ABSOLUTE DIGITAL INDICATOR GAUGE (543-683B) ID-S1012EB
9324 HEIDOLPH OVERHEAD STIRRER (501-11000-00-1) (501.11000.00.1) RZR1
9274 SCHMERSAL SAFETY RELAY AES1235
7592 APPLIED MATERIALS COVER RF SHIELD INTLK DELTA 0020-31609
10440 EUTECH INSTRUMENTS PH/MV/CONDUCTIVITY/C/F METER PC 2700
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！
