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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�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(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。

4488 HP MUTT ASSY, HOTDOG, LAVA T-607129-6001
10429 ANORAD POSIING LINEAR STAGE W/ MOUNTING BRKT MYCON SERVO MTR 35643
10325 OMRON TEMPERATURE CONTROLLER E5CN-Q2HBT
R18 ALLEN-BRADLEY FLEX ARMOR I/O, 5 SLOT BASEPLATE, 95711801, 95743801 1798-BP4
B114 NOVELLUS ISO BLANK OFF ISO VLV PORT BB10-157659-00 BB10-157659
11539 KOGANEI AIR CYLINDER SWING SDA40X100-N-45
11610 COSEL 5V/5A 24V/9A POWER SUPPLY LEB225F-0524
7745 APPLIED MATERIALS POWER SUPPLY 0.750KV, X3286 ESC1.5PN7.5X3288(0190-14140)
9402 REIS ROBOTICS SERVOSTARKER, ID: 3520782 DRIVE 4003
3192 LEICA LENS MONO ZOOM7 312989
2707 ATAGO BUSSAN LASER RADIATION EMISSION INDICATOR GLS2165
17527 ASML PCB ASSY 4022.437.0889
21689 NMB-MAT 2-PHASE STEPPING MOTOR D6NB
5969 APPLIED MATERIALS ETO RF GEN 2.0 MHZ WATT METER ABX-X276, ABX-X23 ARX-X250
8071 VAT PENDULUM VALVE KIT, SEALING RING 203217
3983 CHIU TECHNICAL CORP LUMINA ILLUMINATOR F0-150
23254 LAM RESEARCH ELECTROSTATIC CHUCK 719-102001-053 715-102001-053
7706 APPLIED MATERIALS COVER RF SHIELD GOLD INTERLOCK DELTA SAC 0020-75984
1792 UNIPHASE HELIUM-NEON LASER HEADS 1135P-2478
T205 MILLIPORE BARATRON CAPACITANCE GAUGE, 0-10TORR, CMLB1106 CMLB-11S06
10553 GE FANUC FIELD CONTROL BUS INTERFACE UNIT IC670GBI002J
14180 APPLIED MATERIALS PCB ASSY,SYSTEM ELECTRONICS INTERFACE BOARD 0100-20001
2499 APPLIED MATERIALS SHIELD UPPER, G-12 FLAT HEAD, SST 0020-27190
20357 SEMITOOL PCB ASSY, 16750-501-0275 16750C
20868 ASML PCB, MODULE BOARD, 7107-9731-012 4022.437.1312
15770 TDK-LAMBDA POWER SUPPLY MODULE FPS1000-24
9881 B&R 25 SLOT X20 I/O SYSTEM, PS9400, DI8371, DO8322, PS2100 X20 BC 0043-C01
12858 PITTMAN LO-COG SERVO GEAR MTR, 24VDC, 1000 CPR, P/N: E12002441 9413J968-R2
14245 LAM RESEARCH 715-330896-004,SEM-I-53=2M24 853-800749-014
15177 YASKAWA AC SERVO MOTOR, 200V 0.89A 3000RPM SGMP-01A314
15424 SANKYO AC SERVO MOTOR, 100W 3000RPM MC101NS302ANN33
16398 LAM RESEARCH 24 CHANNEL TEMP CTRL BD ASSY 853-074510-001 853-049542-170
1331 OMRON INTELLIGENT SIGNAL PROCESSOR K3TX-AD22A
13565 APPLIED MATERIALS FACEPLATE, 200MM 0021-92064
14427 APPLIED MATERIALS MANIFOLD WATER 0020-30511
10934 MKS IN SITU DIAGNOSTIC ACCESS VALVE IDA-T007
2227 ABM VACUUBRAND DIAPHRAGM VACUUM PUMP MZ 2C 4EKF63CX-4
3982 STOCKER & YALE ISO-DYNAMIQUE IMAGELITE ILLUMINATOR, LITE MITE SERIES 20
9360 BELDEN CABLE W/ PLUG FFA.1Y.410 (3.66M) 687311
9688 APPLIED MATERIALS KIT DI WATER SHUT- OFF VLV 0242-22569
12116 SMC PARALLEL GRIPPER, LONG STROKE MHZL2-16S
7485 APPLIED MATERIALS 8" DXZ HEATER 0040-32148
8034 SONY CCD INDUSTRIAL CAMERA XC-ST50
18238 UNAXIS QUARTZ CRISTALS, 5MHZ, AU-ELECTRODE BD489025-T
16399 APPLIED MATERIALS WELDMENT 1, AR PURGE, XHDR TEOS  0051-27267
6101 UNIT MFC 1661 UFC-1661
12396 SCHUMACHER TRANSFILL II REFILL CONTROLLER, P/N: Z0707-002725 1491-1014
13468 APPLIED MATERIALS TC,PROBE K-TYPE QUICK-DISCONNECT INTEGR  0190-13410
13494 LAM RESEARCH TCP RF ASSEMBLY MANUAL MODULE 853-015982-001-D-8611
7485 APPLIED MATERIALS 8" DXZ HEATER 0040-32148
8034 SONY CCD INDUSTRIAL CAMERA XC-ST50
18238 UNAXIS QUARTZ CRISTALS, 5MHZ, AU-ELECTRODE BD489025-T
16399 APPLIED MATERIALS WELDMENT 1, AR PURGE, XHDR TEOS  0051-27267
6101 UNIT MFC 1661 UFC-1661
7830 MITSUBISHI MELSEC PROGRAMMABLE CONTROLLER AJ71PT32-S3
12396 SCHUMACHER TRANSFILL II REFILL CONTROLLER, P/N: Z0707-002725 1491-1014
13468 APPLIED MATERIALS TC,PROBE K-TYPE QUICK-DISCONNECT INTEGR 0190-13410
13494 LAM RESEARCH TCP RF ASSEMBLY MANUAL MODULE 853-015982-001-D-8611
17133 BECKMAN BENCHTOP PH METER, CAT NO: 143804 PHI 310
10072 SMC DIGITAL VACUUM PRESSURE SWITCH W/ 8 SOLENOID VALVES ZSE3-0X-21
7177 TEL PCB TSBC-ACRTC 808-620160-2 W/ 881-620680-1 808-620680-1 881-620160
7284 LAM RESEARCH COAXIAL CABLE LENGTH:44.5CM (MALE TO FEMALE) 853-190297-057
8899 IWAKI AUTO DAMPENER PDA-10H1
10406 APPLIED MATERIALS PLATE MWAVE LAMP STRAIGHT SOURCE 6061 T6 AL 0993-20950
10248 APPLIED MATERIALS KIT, HARNESS, DXZ, CENTURA  0090-35758
14009 APPLIED MATERIALS TOOL 6 PRECLN PASS THRU CALIBRATION 0270-20144
22025 VERITY SYSTEM CONTROLLER, P/N: 1004380C SDC2001
12574 APPLIED MATERIALS 200MM CASS''T HNDLR BASIC ASSY,MNL FEND,P 0010-03166
12702 HP PCB, JET DIRECT PRINT/ETHERNET CARD 10BASE-T 5182-4752
21223 KLA-TENCOR PCB ASSY, ANALOG BOARD, S6220  531430
19894 VARIAN ROTARY ASSY E17079341
20832 AUTOMOTION PCB ASSY, 1001481 320062
20847 OEM PCB ASSY 300086-00
8370 TOKYO ELECTRON EDGE DETECTION UNIT BOX PN:BB81-002457-12 BB87-002604
1228 COLE MAINS CHECK SET T1007
4487 RISTO LED LIGHT CONTROLLER, 24V/25W PSD-2512-256
7142 EMERSON PROGRAMMABLE SERVO POSITIONING/MOTION CONTROLLER PN:960018-01 PCM-1
21445 SPTS LIFT PIN  FB319622
8627 TYLAN GENERAL ADAPTORR VALVE CONTROLLER AC-2X
4714 NEWPORT CONTROLLER 230V 2.5W IDP-1/E
8903 APPLIED MATERIALS EXHAUST WELDMENT LLC SENSORS 0050-70003-H
6144 HORIBA-STEC MFC SEC-4400 SEC-4400MC
9461 SIEMENS CPU317-2DP CONTROLLER MODULE 6ES7 317-2AJ10-0AB0
14140 MICRO VERTER MOUNTING BOARD, ASSY, 20010389A
14397 APPLIED MATERIALS CB MAG 3P240VAC 15 0680-01121
1157 APPLIED MATERIALS UNI-INSERT,GDP,LINER,88 HOLD, QTZ 0200-10246
16663 APPLIED MATERIALS SHIM, MAGNET ASSY, .50MM, SST 0020-27885
18111 PFEIFFER TURBOMOLECULAR PUMP W/ CABLE & CTLR HIPACE 700
20324 NOVELLUS CABLE ASSY, E-84 EXTENSION 1.5M 03-167546-00
20511 APCC PCB ASSY, PD228-0001, 870-3266 640-0232G
20813 YASKAWA ELECTRIC PCB ASSY, 147117-01, DF8303483 BTM-F-180
6255 HORIBA-STEC MFC Z700 SEC-Z313M
13431 HARMONIC DRIVE SYSTMES AC SERVO ACTUATOR RS-8-3006C
4380 APPLIED MATERIALS BRKT LEFT MOUNTING CHBR-MF RPG CHBR 300MM 0020-46291

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！