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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(xiàn)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(xiàn)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(xiàn)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(chǎng)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(chǎng)各生產(chǎn)單元的功能和建設(shè)階段，分為廠(chǎng)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(chǎng)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。
11222 VAT SERIES 07 ATMOSPHERIC DOOR L-VAT VALVE ACTUATOR 0750X-VE241178 TELETRON REGULATED DC POWER SUPPLY TC-2404Q
3038 LEYBOLD VAKUUM THERMOVAC SENSOR TR 216 15787 15777 TR216
11550 ALLEN-BRADLEY CONTROLLOGIX, 8 AXIS SERCOS INTERFACE MODULE 1756-M08SE/B
12477 INFICON BALZERS LI-9496 PIRANI GAUGE W/O SENSOR, P/N: 353-500 BPG400
4257 VAT GATE VALVE W/ PLATE AND CONTROLLER 14036-PE24-AAC1
9636 APPLIED MATERIALS PCB SIGNAL CONDITIONING BOARD SCHEM. REF: 0130-0100-01185
11658 APPLIED MATERIALS CABLE ASSY 15A 120V L5-15P IEC320-C13 14 0620-01715
9164 FUJI PXR-4 TEMPERATURE CONTROLLER (LOT OF 3) PXR4TEY1-1Y000
15333 ZEISS 960 S.E.M PCB, 348338-2002 348338-9020-2002
T56 MKS VACUUM SWITCH TYPE 141, 1 TORR 141A-22945
19293 HONEYWELL MINI-PEEPER ULTRAVIOLET SCANNER C7027A 1072
1260 LOVE CONTROLS CORP SELF TUNE PLUS TEMPERATURE CONTROLLER 321
4997 APPLIED MATERIALS BRKT GASLINE CLAMP PLATE PROD SE MKII 0021-26241
23402 APPLIED MATERIALS ASSY GAS BOX 150MM WSI, 5000 CVD, 0020-31035 0010-09806
11769 VERIFLO PARKER P-SERIES BELLOWS VALVE, P/N 44900303 4A-P4K-11AC-SSV
7271 KIDDE HART200 HIGH SENSITVITY SMOKE DETECTOR 53541-501-02ER
7232 KAYDON APPLIED MATERIAL BEARING ASSY, OD 22CM, ID 20CM 15965001
15301 APPLIED MATERIALS ASSY SENSOR WAFER SM312C V2 W/ BRACKET 0090-20105
12888 FUJIKIN DIAPHRAGM VALVE, N.C., O.P. 3.5~5KGF/CM2G (0.34~0.49MPA) 57831
5681 APPLIED MATERIALS HV MODULE CESC 0010-04926
3729 OMRON INTERACTIVE DISPLAY W/ NT600M-LB122 C200H I/F UNIT NT20M-DT121-V2
6034 CELERITY MFC UNIT 125 IFC-125C
11573 ALLEN-BRADLEY COMPACTLOGIX LOGIX 5330 PROCESSOR UNIT 1769-L30
21559 TERADYNE PCB ASSY, TW905 950-905-01
12456 ASML PCB, MOTION CONTROL BOARD 4022.436.6467
21648 BROOKS PCB ASSY (D-CONN) FOR 5851EM SNSR ASSY 5851EMA3EKTHDKC S097Y847AAA
16459 APPLIED MATERIALS CABLE ASSY P54 CHX INLK MANF 0150-25933
16468 APPLIED MATERIALS CABLE ASSY CH X GP DNET HUB 0150-25320
16467 APPLIED MATERIALS CABLE ASSY CH Y GP DNET HUB 0150-25322
16457 APPLIED MATERIALS CABLE ASSY P54 CHY INTK MANF 0150-25934
18931 LAM RESEARCH CABLE ASSY RF COAXIAL CABLE RIGHT 834-030819-018
9447 SIEMENS PROFISAFE 4/8 F-DI 24VDC INPUT MODULE 6ES7138-4FA04-0AB0
5938 SANYO DENKI SUPER R DC SERVO MOTOR 200W,75V,3.6A,3000RPM R720-012EM
3644 YAMATAKE-HONEYWELL TEMPERATURE CONTROLLER SDC40
11277 ENTEGRIS VALVE - PILOT 3-WAY SAMPL 202-14
10695 LAM RESEARCH RING GROUND CHAMBER 715-330889-002
11825 KLA-TENCOR MICRO POINT PRO FELL PROBE HEAD, TYPE F 50-0002-10
3353 PARKER FLEX INDEX OR X-AXIS SLIDE 081-3473
13025 TELCO MOTION STEPPER MOTOR, 1.8°/STEP, 4.0V, 0.95AMPS 4H4018S0956F
T36 TYLAN GENERAL PR SNSR TRANSD LRC: 685-092784-001 0-20 TORR CDL-12S13
17557 BANNER EMITTER & LO PNP RECEIVER SET 63155 VS2KAP5V_W/30
19517 PHILIPS PCB PC CIRCUIT BD DFSA 4022 192 6039 NM1E6N PR.9633 PR32.4E-VO
2049 OPTO 22 PCB, CIRCUIT BOARD FE, G4 IDC5(X3), G4 OAC5(X4), G4 ODC5 G4PB24
14219 THK BALL SCREW BT2005A AX-6E11
T262 MKS BARATRON PRESSURE TRANSDUCER, 30TORR 727A31TGA2FB
3229 METROHM ULTRA FILTRATION UNIT 833
3987 SMC GUIDED OIL PRESS CYLINDER MGCLB32-75-R-H7A2SAPC
10445 EUTECH INSTRUMENTS CYBERSCAN WATERPROOF PORTABLE METER COND600
20947 APPLIED MATERIALS CABLE ASSY 0150-45365
1421 MKS HIGH VACUUM PNEUMATIC VALVE 93-6001
3083 MITSUBISHI PCB PLC A1SJCPU-S3-A A1SJHCPUPW
12198 FUJIKIN DIAPHRAGM VALVE, TYPE N.C., O.P. 0.39~0.59 MPA 23727
1328 SMC REGULATOR IT1011-N31-DIM00375
11307 KOGANEI AIR OPERATED VALVE F-DAVP125-3W
10662 APPLIED MATERIALS HIGH EFFICIENCY RF MATCH-BIAS 0010-13627
20268 APPLIED MATERIALS KIT HDWR. ISO-KF40-NW50 LL/XFER 0242-86358
12472 PANASONIC PCB, CPU PROCESSING CARD 581B357C
4268 PORTER PRESSURE REGULATOR W/ASHCROFT GAUGE 250-3074 8310
8729 PEARL KOGYO TUNER CONTROLLER (5139-000072-31) ZDK-916R2C(T02)
14772 PORTESCAP BRUSHLESS STEPPER MOTOR K92211-P2
7889 APPLIED MATERIALS CHUCK ASP 200MM TOP MOUNT TYPE 0021-35819
18319 TEXAS MICRO PCB P54C PENTIUM (RAINBOW II) CPU 950/F27411C
21305 TALON DIA BLK VLVS ASSY TYPE N.C. O.P. 0.45-0.86MPA 143479 03-33-4007
21453 GREENE TWEED BONDED GATE- LARGE O-RING STYLE 5641A1412SSE38
5339 LAM RESEARCH BAF, BARE AL, 2300 MW STRPR 715-026588-510
21880 APPLIED MATERIALS HARNESS ASSY 20 SLOT SYS CONTROLLER 0140-75105
3541 ALLEN-BRADLEY REMOTE I/O ADAPTER MODULE 1771-ASB C
9087 KULICKE & SOFFA DUAL HS 2A/2A BOARD, 8002-4103 N08002-4103-000-00
21735 ELECTROCRAFT TORQUEPOWER STEPPING MTR W/ BALL TPP23-90-002
22186 AXCELIS SOURCE SPACER 170115590
15272 KEYENCE DIGITAL CMOS LASER SENSOR GV-H45
T262 MKS BARATRON PRESSURE TRANSDUCER, 30TORR 727A31TGA2FB
3229 METROHM ULTRA FILTRATION UNIT 833
20947 APPLIED MATERIALS CABLE ASSY 0150-45365
1421 MKS HIGH VACUUM PNEUMATIC VALVE 93-6001
12427 PRI AUTOMATION TTR 200 POWER DISTRIBUTION ASSY 2005-0487
20268 APPLIED MATERIALS KIT HDWR. ISO-KF40-NW50 LL/XFER 0242-86358
9816 NOVELLUS HEATER PEDESTAL 02-033134-00F
6024 AERA MFC FC-786 MASS FLOW CONTROLLER TC FC-786
4268 PORTER PRESSURE REGULATOR W/ASHCROFT GAUGE 250-3074 8310
10605 FUJIKIN DIAPHRAGM VALVE TYPE N.C. O.P 0.34~0.49MPA 542926
14772 PORTESCAP BRUSHLESS STEPPER MOTOR K92211-P2
7825 TOKYO ELECTRON ELECTROSTATIC CHUCK 05041AA-90013
7889 APPLIED MATERIALS CHUCK ASP 200MM TOP MOUNT TYPE 0021-35819
18319 TEXAS MICRO PCB P54C PENTIUM (RAINBOW II) CPU 950/F27411C
21305 TALON DIA BLK VLVS ASSY TYPE N.C. O.P. 0.45-0.86MPA 143479 03-33-4007
7827 TOKYO ELECTRON ELECTROSTATIC CHUCK 89080AA-90013
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！
