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集散控制系統(tǒng)(Distributed Control System-DCS)集計算機技術(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)過程控制系統(tǒng)。隨著計算機和網(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(yīng)用廣泛、技術(shù)成熟,在現(xiàn)有的技術(shù)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(shè)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(shù),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(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各個生產(chǎn)單元進行監(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(shù)和設(shè)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(shè)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(jié)構(gòu)見圖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塊開關(guān)量輸入信號卡,可采集384點信號;7塊開關(guān)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(guān)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
Applied Materials AMAT Transducer Meter, 1040-01218
18947 LAM RESEARCH CABLE ASSY, 5M 833-800785-012
10606 LAM RESEARCH TOP GROUND RING 615-00325-010
9041 APPLIED MATERIALS 300MM ETCH 1 ULTIMA LOAD LOCK BELLOW 0040-85643
11359 TOKYO ELECTRON PCB E2B023-12/ECUM, E2B024-11/ECUD E2B023/ECU
B67 ADVANCED ENERGY MDX PINNACLE POWER SUPPLY 3152338-018A
12964 APPLIED MATERIALS GAUGE, PIRANI CAPACITANCE, 1.33 CONFLAT 3310-00073
7857 MET ONE REMOTE PARTICLE COUNTER R4903 LL .3M
12574 APPLIED MATERIALS 200MM CASS''T HNDLR BASIC ASSY,MNL FEND,P 0010-03166
2585 LAM RESEARCH PCB 24 CH TEMP CTL MB 810-028295-161 853-049542-161
8545 AUSTIN INTEGRATED SYSTEMS PCB PNEUMATIC BD FOR AMAT P5000 BES-530-12S
19560 LAM RESEARCH BAFFLE PLATE 8'' 715-011912-083-J-1011232-AUK-15-144-1160
19562 LAM RESEARCH BAFFLE PLATE 8'' 715-011913-083-H-1011232-AUK-15-132-0835
4101 ENDRESS+HAUSER LIQUISYS-P CPM220-21AA02
13160 APPLIED MATERIALS PCB GAS PANEL INTERFACE (W/O STANDOFF) 0100-76046
13499 APPLIED MATERIALS GASLINE INSERT, CHBR FEED THRU, 300MM 0050-90653
13978 APPLIED MATERIALS PCB,300MM HDPCVD CHAMBER DIST.BD 0100-01781
14815 APPLIED MATERIALS HOOP LEFT EXTENDED 8/6 B101 0021-04248
15179 ASML DC MOTOR W/ ENCODER 2MC-H500-N 4022.436.1575
16850 LAM RESEARCH PCB LONWORKS ETHERNET ADIO RS485 810-227611-002
18798 ADVANCED ENERGY PCB, DRE CESAR3-MAIN V2.1 LY210109
8116 TOKYO ELECTRON PCB ASSY, 1181-000537-12, 118100053712 MC-31106A
14114 ASML PCB, PM CIB/CCBNC W/ 4022.192.92541.1 & 4022.192.92421 4022 268 0009
2088 SVG PCB, SHUTTLE INTERFACE, 03-80267B-01 99-80267-01
16185 APPLIED MATERIALS ASSY BELLOWS LOWER MAG COUPLED ROTATION 0040-87020
15605 APPLIED MATERIALS COVER CERAMIC PUMPING CHANNEL DXZ SAC 0200-36418
17780 EQUIPE TECHNOLOGIES CABLE, PRI AUTOMATION, ROBOT, 2M 2002-0096-001
18799 ADVANCED ENERGY PCB, DRE C4-MAIN V4.0 LY400268
18537 ADVANCED ENERGY PCB, DRE CESAR3-MAIN V3.0 LY300109
19093 APPLIED MATERIALS PCB CARD DIGI DNET DIO 391-4 0190-06279
19557 APPLIED MATERIALS WELDMENT, BELLOWS, WAFER LIFT W/O PLATE 0040-32053
16325 OERLIKON LEYBOLD TURBOVAC TURBO PUMP TMP 361
21900 ADVANTEST PCB PG CONT PRINTED CIRCUIT BOARD BIR-020567
12230 TELEDYNE THERMOCOUPLE VACUUM GAUGE TUBE, ?" VCR, 0-1000 MTORR DV-6 VCR
8881 TOKYO ELECTRON ESC ELECTROSTATIC CHUCK (N1410200103) AN141003
8755 TOKYO ELECTRON ESC ELECTROSTATIC CHUCK (N1410200105) AN141005
4661 SMC SOLENOID VALVE 0.2-0.7 Mpa SY5340-5LOZD
9184 COMET VACUUM VARIABLE CAPACITOR CVMI-1000AC/5-BAC-L
20285 APPLIED MATERIALS ELEAL ASSY PVD PMR CHMBR AC 0090-03403
3753 DIGI 32-PORT TERMINAL SERVER ETHERLITE 32
4955 APPLIED MATERIALS FORELINE THRU THE FLOOR WELDMENT 0050-60044
18764 OEM PCB ASSY, DPD 91204 21328-2
16308 GRANVILLE-PHILLIPS 352 GAUGE CONTROLLER 352001
17504 APPLIED MATERIALS ASSEMBLY MAXFILTER-II 0090-05154
4580 THK STAINLESS STEEL SLIDER WITH GUIDE BLOCK SRS15WGMUU+270LM
21543 KLA-TENCOR BRAKE ASSY, Z-STAGE 52-0365
20602 ROHDE & SCHWARZ DIODE POWER SNSR 100KHZ - 6GHZ 10NW - 500MW 4.8M NRV-Z5
8528 PARKER PCB STEPPING MOTOR DRIVE DIGI PLAN AM5 1396.020
5171 KFMI 200MM SPTS SPUTTERING AL TARGET AL-0.5%CU (5N5)
21856 YASKAWA ELECTRIC AC SERVO MOTOR W/ GEARHEAD SGMAH-01AAF4C
4043 LAM RESEARCH OPTICAL END POINT CONTROL BOX 852-494005-002-B-3614
15272 KEYENCE DIGITAL CMOS LASER SENSOR GV-H45
5892 BECKER ROTARY VANE VACUUM PUMP VT4.40
4022 LAM RESEARCH ESC POWER SUPPLY CONTROL BOX 853-250758-001-1-221
19937 ASML PCB PHILIPS 16BIT CPU-CARD 5322 694 15426 4022 332 85782
9749 APPLIED MATERIALS PWR SUPPLY OUTPUT HARNESS DCP-208-24, 50FT 0190-00441
10406 APPLIED MATERIALS PLATE MWAVE LAMP STRAIGHT SOURCE 6061 T6 AL 0993-20950
4469 APPLIED MATERIALS FLTR GAS MINI WAFERGARD SL 4020-00076
12574 APPLIED MATERIALS 200MM CASS''T HNDLR BASIC ASSY,MNL FEND,P 0010-03166
9613 MKS ANGLE VACUUM VALVE, MANUAL OPERATED CV25-K2K2-MKVV
10210 APPLIED MATERIALS COVER INSULATOR TIN 8'' 0020-23286
4478 ECI VALVED PSD/3 SYRINGE PUMP LUO970
9430 PURERON COMPACT PURELINE GAS FILTER UCF-LB-02VR.P
1235 SEMTRONICS LIMIT SWITCH SETTING EN452
15757 ECHELON I.LON 600 LONWORKS/IPSERVER IP-852 ROUTER 72604R-TP/XF-1250
9306 ROBOHAND PNEUMATIC ACTUATOR RR-26-128
11732 APPLIED MATERIALS CABLE ASSY, SECOND SERIPLEX TO PLC 0150-04470
19932 ASML PCB PHILIPS WAFER-CTRL 5322 694 15491 4022.332.86322 4022 332 86322
19936 ASML PCB PHILIPS STEP MOT CTRL 5322 694 15195 4022 332 85332
11560 ALLEN-BRADLEY 16PT CONTROLLOGIX ANALOG I/P MODULE,96240874 A01 1756-IF16/A
13456 OLYMPUS AC SERVO DRIVER, DV363100-01 OTS10B
15838 DIANIPPON SCREEN DNS CERAMIC VACUUMLESS ARM 3-39-64025
9683 LUDL MAC22 19" ENCLOSURE INTERFACE MODULE 73002005
15722 NEC PCB, STRATUS MOTHERBOARD W/PC-E71400-00 PC-E70000-03
16699 APPLIED MATERIALS CABLE ASSY DNET DROP 5M RSC-RKC 0620-02788
16377 CTI CRYOLINE PRESSURIZED STAINLESS STEEL HOSE, 350PSIG, 2FT 8043436G030
13298 PORTWELL PCB, 19-SLOT (4XPCI) PICMG BACKPLANE PBP-19P4 400
16750 APPLIED MATERIALS CABLE ASSY, 50FT WTR LEAK DETECT MNFRM I 0150-21933
16307 APPLIED MATERIALS DUAL FILAMENT HOT ION GAUGE W/ SENSOR HDP100 0190-48891
注:聯(lián)系我時,請說是在“傲立機床網(wǎng)”上看到的,謝謝!