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集散控制系统(Distributed Control System-DCS)集计算机技术、控制技术、通信技术、CRT技术于一体,广泛应用于生产过程控制系统。随着计算机和网络技术的飞速发展,产生了一种新型的控制系统———现场总线控制系统(Fieldbus Control System-FCS)。但国内生产企业的情况是:大多数企业还处于模拟仪表和人工控制的阶段,采用DCS控制系统的企业仍是少数。由于DCS应用广泛、技术成熟,在现有的技术条件和市场条件下,FCS还不能完全取代DCS,而且目前现场总线设备和系统还十分昂贵。因此,除了新建企业外,国内企业在较长时间不可能全面采用现场总线技术,而必须走逐步发展、过渡的道路。 ??我们在上海石化股份公司环保部水质净化厂监控系统的改造项目中,对3个生产单元已有的DCS和PLC进行改造,增加通信功能,实现总调度室对各生产装置的集中监控。 2?系统改造方案?? 根据水质净化厂各生产单元的功能和建设阶段,分为厂外调节池、污水一段、氧化沟、四期污水处理、污泥脱水、污泥干化6个生产单元。另外,在厂部设有总调度室,但是总调度室的监控水平较为落后,改造之前基本上不能对各个生产单元进行监控。为了适应生产需要,提高生产效率,改善操作条件,加强监控手段,确保各生产装置的正常运行,急需对各生产单元和总调度室进行技术和设备的更新改造,从而能在总调度室对各装置进行监视管理,及时了解各装置的运行情况,达到指挥及时和调度准确的目的。 2.1?现场监控系统的改造 ??现场监控系统的改造要充分利用原有仪表和设备,主要考虑可靠性和实时性。首先对自控程度较高的3个单元进行改造(系统结构见图2—1): ??四期污水处理生产单元控制设备配置了两套ALLEN-BRADELY公司PLC设备。25块开关量输入信号卡,可采集384点信号;7块开关量输出信号卡,可输出112点信号;3块模拟量输入信号卡,可采集24点信号。两套AB—PLC通过DH+(数据高速通道)实现数据共享。在原有的现场控制计算机上分别增加以太网卡,通过以太网将实时数据送到总调度室处理。??输出192点信号;1块模拟量输入信号卡,可采集8点信号。系统运行采用遥控开关操作与全模拟流程盘显示。在原有的Siemens S5-115UPLC上增加RS-232通讯模块(CP524)和1台现场操作站,用点对点方法连接,使PLC的数据通过现场操作站送到以太网上,与总调度室监控计算机通信。但RS-232传输速率只有9600bps,操作站仅对现场起到监视作用。
ALLEN BRADLEY PANELVIEW 550 2711-K5A8 SER. H F/W 4.20 INTERFACEALLEN BRADLEY PANELVIEW PLUS 700 2711P-B7C4D1 SER. A INTERFACE * NEW NO BOX *
ALLEN BRADLEY Y-2012-H00AA SER. B UNMP
AMTRON CU412 NSNP
AMTRON PU405 UNMP
ARCOM 7041-64021-005-101 UNMP
ASCO NP8320A175E 125/DC NSMP
ASCO NPL8320A187E 125VDC 60PSI NSNP
AVTRON M737A-1D-240-BC PULSE GENERATOR *
BAILEY IMMFP02 INFI90 NSNP
BALDOR CSSWDM3615T NSNP
BALDOR PSM2A060-PR2 VECTOR DRIVE
BANNER ENGINEERING MGE3616A 27751 NSMP
BASLER ELECTRIC 90-37000-102 MODEL MVC-108 NSNP
BAUMER FLDK 110G1003/S14
BAUMULLER DSG71-M UNMP
BECKHOFF AM8042-0F11-0000 NSFS
BELL & GOSSETT 172764 NSMP
BELL & GOSSETT 2AB CIRCULATOR PUMP 1/6 HP 1725 RPM *
BENTLY NEVADA 135613 CASE EXPANSION TRANSDUCER
BENTLY NEVADA 3300/25-03-06-06-00-00-01-00 DUAL VECTOR MONITOR
BENTLY NEVADA 3300/50-02-01-00-00 NSNP
BENTLY NEVADA 3300/80-02-00-01-00 MONITOR
BENTLY NEVADA 3500/92-04-01-00 GATEWAY *
BETA LASERMIKE LD1075XY-S (AS PICTURED) UNMP
BETA LASERMIKE LD1075XY-S UNMP
BONITRON M3452-C600 K3,A BRAKING MODULE
BRANSON 930ABO POWER SUPPLY
CHERRY LK001-A UNMP
CHROMALOX TM-6125 (155-115848-002) (141CP)
CLECO 45RNAB-2T-4 NUTRUNNER
COGNEX ISM1110-01 828-0293-1R IN-SIGHT MICRO READER
CONTROL TECHNIQUES 861122-03 MOTOR
CONTROL TECHNIQUES MGM-316-CBNS-0000 NSMP
CONTROL TECHNIQUES SP2401 NSMP
COOPER 225MTB NSMP
COOPER FMVSY1000/TT76 LUMINAIRE MODEL M05 * NEW NO BOX *
CUTLER HAMMER 7585SK-10XE 92-02069-00
CUTLER HAMMER 91-01538-05 OPERATOR INTERFACE MONITOR
DANFOSS 131L0519 NSMP
DANFOSS VLT5022PT5C20STR0DLF00A31C0 UNMP
DATA POWER 15A0069P UNMP
DATALOGIC DS8100-4000 SH1937
DELTA GBL4-F3-802-BD UNMP
DELTRAN 320-27-010 UNMP
DIAGRAPH 5760012SDP NSMP
DINGS DYNAMICS 73038-54-U3X-H NSMP
DODGE 243501 PZ TORQUE-ARM SPEED REDUCER TXT315AT * NEW NO BOX *
EATON 15CLE3-175E NSNP
EATON 5AHLE-400E NSFS
EATON 5CLE-300E CURRENT LIMITING FUSE
EATON 91-01095-00 CRT MODULE
EATON SVX050A1-4A1N1 UNMP
EATON VICKERS PVQ13-A2R HYDRAULIC PUMP 02-341630
EATON XTAE185L22TD160 NSMP
ELEKTROR RD62/FU NSNP
ELMO 3HAC4790-1 NSNP
EMERSON AX-4000-00-00-00C
EMERSON DXE-490W UNMP
EMERSON DXM-6200 NSNP
EMERSON MODEL EN-208-05-000 (960501-05) SERVO DRIVE
ENDRESS+HAUSER 80A04-ASV WAAA1AFAA
ENDRESS+HAUSER PROMAG H 53H50-10F9/0 FLOW METER
ENDRESS+HAUSER PROMASS 83 83M40-ASAAAARCBBAW UNMP
EUROTHERM 590C/0700/A/1/0/0/0/00/000 (AS PICTURED) UNMP
EUROTHERM 955D8R62 DC DRIVE
EUROTHERM 955L8R62 DRV DC DRIVE
EUROTHERM DRIVES L5300 REV. 3.0 NSNP
EUROTHERM DRIVES L5300 REV. 4.1 NSNP
FANUC A02B-0166-C271#R LCD/MDI UNIT 7.2" *
FANUC A05B-2543-C204#EGN * NEW NO BOX *
FANUC A06B-0143-B076#0075 SERVO MOTOR
FANUC A06B-0162-B175#0006 NSMP
FANUC A06B-0205-B400#0100
FANUC A06B-0502-B004 AC SERVO MOTOR
FANUC A06B-0590-B205#7008 SERVO MOTOR
FANUC A06B-6066-H415#H500 AC SERVO SAMPLIFIER
FANUC A06B-6087-H115 POWER SUPPLY MODULE
FANUC A06B-6089-H101 SERVO AMPLIFIER UNIT
FANUC A06B-6089-H104 SERVO AMPLIFIER UNIT
FANUC A06B-6110-H006
FANUC A06B-6110-H011#N NSMP
FANUC A06B-6114-H209#N SERVO AMPLIFIER
FANUC A13B-0126-B002 UNMP
FANUC A16B-3200-0440/04C NSNP
FANUC A16B-3200-0780/03A NSNP
FANUC A97L-0118-0950 NSMP
FANUC A97L-0218-0885/33 NSFS
FANUC A97L-0218-0886/127 NSNP
FANUC A97L-0218-0887/150 NSNP
FANUC RV-250-129 REDUCER
FANUC SERVO AMPLIFIER UNIT A06B-6090-H223 *NEW*
FESTO DGP-40-150-PPV-A-B-GK-FK LINEAR CYLINDER (AS PICTURED) * NEW NO BOX *
FIREYE 25SU3-2100 FLAME AMPLIFIER 19"
FISHER CONTROLS 32-24588SVF/67CFR-362/DVC2000 NSNP
FISHER-ROSEMOUNT DPR960 492880301 SINGLE STATION MICROCONTROLLER
FLUID SENTRY PBS512M MONITORED VALVE 24VDC
FLUIDSENTRY HBV362M NSMP
FOXBORO 130MC-N4 0-100 3-15PSI NSNP
FOXBORO 43AP-FA420/PC-15 REMAN
FOXBORO 43AP-FA42NESQ18FN/725-P700X NSNP
FUJI BW630EAG NSMP
FUJI ELECTRIC AF-300G11 6KG1143020X1B1 AC DRIVE
GE FANUC A06B-0315-B001#7000 NSNP
GE FANUC A06B-0893-B390#3000 AC SPINDLE MOTOR
GE FANUC AC SPINDLE MOTOR A06B-0756-B200#3100
GE FANUC IC600CB536L NSMP
GE FANUC IC660BBD024X1 NSFS
GE FANUC IC693CPU351-KT NSMP
GEMCO 1989M16R12SEM PROGRAMMABLE LIMIT SWITCH
GENERAL ELECT 6KAF343030E$A1 DRIVE (AS PICTURED)
GENERAL ELECTRIC 193X529BBG01 NSNP
GENERAL ELECTRIC 209A1045-404-MF AK2A-25-1 600A 600V (AS PICTURED) REMAN
GENERAL ELECTRIC 765X021030 NSNP
GENERAL ELECTRIC CR305G0 NSNP
GENERAL ELECTRIC CR306G004 NSMP
GENERAL ELECTRIC CR309F000LAA * NEW NO BOX *
GENERAL ELECTRIC DS200LPPAG1AAA NSMP
GENERAL ELECTRIC DS3800HCMB1C1C W/ DS3800DCMB1D1B GENERATOR REGULATOR
GENERAL ELECTRIC DS3800HFXB1R1H EXPANDER MODULE
GENERAL ELECTRIC DS3800HPCA1F1E CIRCUIT BOARD
GENERAL ELECTRIC DS3800HRMD1C1B MICROPROCESSOR BOARD
GENERAL ELECTRIC DS3800HSHB1F1C PC CIRCUIT BOARD
GENERAL ELECTRIC DS3800HXRC1E1C w/DS3800DXRC1D1A PC BOARD RCVR.
GENERAL ELECTRIC DS3800HXRC1E1C w/DS3800DXRC1D1B PC BOARD
GENERAL ELECTRIC DS3800NCCB1H1F PC BOARD
GENERAL ELECTRIC DS3800NCID1B1A CURRENT ISOLATOR CARD
GENERAL ELECTRIC DS3800NDAC1E1F BOARD ANALOG OUTPUT
注:联系我时,请说是在“傲立机床网”上看到的,谢谢!