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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。
2264 NOVELLUS CABLE ASSY 03-111157-001421 MKS HIGH VACUUM PNEUMATIC VALVE 93-6001
20586 ASML PCB ASSY, 100-0000-114 4022.436.4743
11168 COMPACT AIR PNEUMATIC CYLINDER QJM05-4016-B
20300 APPLIED MATERIALS TSTR UV/IR SENSOR 180-240NM OUT ENGY 18 1400-01162
13471 LAM RESEARCH ASSY, LIFTER CYLINDER 853-011661-001
20558 ASML PCB ASSY 4022.192.71633
4747 NEOS DRIVER 21080-2AM
12588 SIEMENS SIMATIC S5 ANALOGUE OUTPUT MODULE 6ES5470-4UB12
19178 APPLIED MATERIALS ASSY PYROMETER 300-1300C EPI IRCON MRT39999C 0090-03991
11045 YASKAWA AC SERVO MOTOR, 3000RPM SGMAS-C2AGA-SU12
14341 MITSUBISHI SERVO DRIVER MR-J2-03BH5-YE
19576 TOKYO ELECTRON 200MM PINCETTET END EFFECTOR 2910-303022-12
7017 ASCO 1/2" STAINLESS STEEL PRESSURE OPERATED ANGELED PISTON E290A045
2162 LAMY NOSE LAMINATOR 220V 50/60HZ 240W I-LAMI-100
6007 AERA MFC FC-PA785 MASS FLOW CONTROLLER TC FC-PA785T-BF
10 MKS EXHAUST THROTTLE VACUUM VALVE 153F-16129
13413 VEXTA BRUSHLESS DC MOTOR DRIVER BLD1524-F
16615 APPLIED MATERIALS TOOL, PRECLEAN II HOOP ALIGNMENT 0270-20087
16751 APPLIED MATERIALS CABLE ASSY, TERMINAL INTERFACE 0150-20143
18949 LAM RESEARCH CABLE ASSY, 5M 833-800785-014
18955 APPLIED MATERIALS OUTRIGGER OUTER MAINFRAME 0040-13240
18956 APPLIED MATERIALS OUTRIGGER INNER MAINFRAME 0040-13239
16436 SCIENTIFIC ATLANTA POWER SUPPLY, 69052 A69052.10
18948 LAM RESEARCH CABLE ASSY, 5M 833-800785-013
18947 LAM RESEARCH CABLE ASSY, 5M 833-800785-012
22278 APPLIED MATERIALS INSERT, LEFT, HQ NITRIDE 0200-36424
1049 BLACK STONE FLOW RATE CONTROLLER BL1.5-14
12189 APPLIED MATERIALS 300MM ELECTROSTATIC CHUCK ESC, 0041-13111 0041-13114
E13 VARIAN 572 IONIZATION GAUGE TUBE K7360302
2809 COSEL POWER SUPPLY, AC100-240V 50-60HZ P15E-24
14113 RAMIX PCB, EXPANSION MOD, 700412 W/ SNP-PMC-DIG16 & IXZPMC142-00 PMC901
16712 APPLIED MATERIALS FLOW SENSOR C/A, B/D/F POS, CHILL FAC, P 0150-00886
16851 LAM RESEARCH PCB NODE TYPE 26 W/ GA932700 & 50020R-10 810-013872-104
3336 DRLANGE LICO 300 UNIVERSAL SPECTRAL COLORIMETER W/ LZM269 LMG167
T37 TYLAN GENERAL PR TRANSD LRC: 771-061941-015 0-1000 TORR CDLD-31S06-EMC
14842 APPLIED MATERIALS HOSE ASSY TFE/SST-BRAID 5/16IDX9.25L S 3400-00002
14841 APPLIED MATERIALS HOSE ASSY TFE/SST-BRAID 5/16IDX12"L SEA 3400-00003
16506 SMC 2 SLOTS PNEU MANF W SOLENOID VLV 02-147128-00 17-146883-00 US8187-4
19287 DAIFUKU RM/TFE/CONV.MAINTENANCE UNIT CONTROLLER, 7A00981HA2 AGH8AA11
19755 APPLIED MATERIALS SCR PN HD 6-32 X.44 HAST 0020-30895
14450 APPLIED MATERIALS HOSE ASSY FLEX BRAID 1/4IDX23.5L 1/4VC, 2FT 3400-01134
14906 WASCO VACUUM SWITCH, 30"HG, 1A, 115 VAC SV129-31S3C/7774
15266 ORIENTAL MOTOR PCB, 5-PHASE DRIVER, EB2276-4G, EB2277-4G A4509-048
16599 PISCO 10 SLOT VACUUM GEN ASSY W/FVUS011-NA VKMH05W-S5/3253/8S2G-B10-NA-VBS
17514 SMC 8 SLOTS VLV MANF + VLVS W/ VACUUM SWITCH ZSE3-0X-21 VJ324M & VJ314
7330 IFM SMARTLINK DP PROFIBUS AC1375
157 ASML PCB POWER SUPPLY INTERFACE 4022.436.1609
21750 ORIENTAL MOTOR VEXTA 2-PHASE STEPPING MOTOR W/ BALL SCREW C9337-9212KM
6138 CELERITY MFC IN3XP MASSS FLOW CONTROLLER BBYLUA002
6570 BROOKS MASS FLOW CONTROLLER, GAS: AR, 300 SCCM GF120CXXO
10943 APPLIED MATERIALS ASSY, SLIT VALVE, METAL ETCH, VITON 0010-70615
5453 ECI TECHNOLOGY PSD/3 SYRINGE PUMP, VALVE LU0970
20580 EMI PCB ASSY, SUNG WEI 11620-01P-707(E1) 098-11620-00
20961 OMRON PCB, TEMPERATURE CONTROLLER, 3385804-8C E5ZT-N08TC01
20913 APPLIED MATERIALS HARNESS ASSY, DR 11-12-13-14 MTR ENC 0140-70601
20910 APPLIED MATERIALS HARNESS ASSY LL MOTION SV I/O PRODR XP 0140-62711
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!