DSBC 172
价格:222.00
武夷山新力源自动化设备有限公司主营AB施耐德GEABB【DSQC系列】英维思西门子摩尔等品牌***自动化解决方案!!!还提供多品牌工控备件,价格公道,品质保证,欢迎来电.★★★★★★★★★★★★★★★★★★★★★★★★★★★★联系MAN:李鹏★★联系TEL:0599-5312273传真:0599-5312270★★★★★★★★★★★★★★★★★★★★★★★★★★★★★移动电话:18020999961★★扣扣邮箱:3288494891@***.com★地址;http:///★★★★★★★★★★★★★★★★★★★★★★★★★★★★我们诚意寻求长期合作的分销商,一起开拓市场,共赢发展。现货+***=您懂的还在等什么!!!看到品牌型号!拿起电话打进来发布的型号都有产品!!价格!库存!***热卖系统平台意味着系统各部分设备提供符合国际标准的各种接口,计算机之间的数据共享,以及提供给用户的通用友好界面等。“平台”思想因其良好的标准化和开放比,越来越降遍地为大家所接受。电力系统自动化对可靠性的需求,使人们注意到“PLC”(可编程逻辑控制器)这种高可靠性和强抗工业干扰的技术。90年代以来,PLC发展迅猛且应用的局域网技术日趋成熟,产品不断向系列化、标准化发展,在自动化控制领域中,新一代的PLC改进为PCC(ProgammableComputerController)已逐渐跃居主导地位,成为实现自动化控制的关键技术,在电力系统也不例外。PCC是新一代“可编程计算器控制器”,是专为在工业环境下应用而设计的数字运行电子系统,采用“面向用户的指今”,因此编程方便;它直按应用于工业环境,具有更强的抗干扰能力、更高的可靠性、广泛的适应能力和应用范围;大容量的存储能力、标准通信接口,基于过程总线的系统互联、***语言开发和运行环境,自诊断能力,都使得PCC为变电站自动化提供了出色的友好“平台”。PCC在变电站自动化中的应用下面介绍应用PCC实现的智能分布式系统运用于某供电局的一个110KV变电站的例子。系统按分布式结构设计,采用开放系统、分层控制等***的计算机设计思想,将计算机技术、通信和网络技术、数据库技术、图形和图像技术、多媒体技术、数据采集和自动控制技术有机地结合在一起,技术成熟,运行经验丰富,能够满足近期的功能要求和远期的发展需要。整个设计遵照国际90年代IEC1000系列标准,满足ISO900l国际标准。从现场投运以来,运行稳定,技术趋于成熟。首先,上位机和网关单元组成智能分布式系统结构的变电站层。上位机通过PROFIBUS网络与三个主要PCC采集控制单元(ST1,ST2,ST3)相连,上位机相当于PROFIBUS网上的一个结点。PROFIBUS(ProcessFieldBus)网络是一种高速数据链路,是具有标准通讯能力的开放式现场总线,用于PCC与PCC之间,或与其它接到本网络上的智能设备(如显示单元PANELWARE,上位机等)间传送数据和系统状态。网络协议符合德国***标准DIN19245,传送介质为带屏蔽的双绞线(或光缆),通道存取方式为令牌(TOKEN)方式,在网络上任一结点地位平等。上位机既可以单机运行,也可以采用多机及网络方式运行;软件平台采用32位多任务、多进程设计,可支持Windows95/98/NT操作系统软件,配有多种应用软件接口,并支持OEM开发,为用户提供了二次开发平台;硬件平台可采用小型机、微型机或工作站等设备。网关单元ST1上的IFO5O通讯模块以及CPU内部均提供RS485接口与继保单元相连。网关单元还提供与外界进行通讯的接口,如RS232口通过拨号MODEM接入市话网,以便于远程诊断;或者经路由器接入TCP/IP远程网。若用户具备与internet连接的条件,变电站层还可以提供PVI浏览器方案,实现远方读取数据。其次,PROFIBUS网上的各采集控制单元组成智能分布式系统结构的采集层。遥测实行交流采样,遥测主单元ST3通过net2000与两个遥侧子单元相连,利用CP153上的RS485串行口通信。远传功能通过IF060提供的RS232串行口来实现。电度量通过遥测子单元1上的DIXXX模块采集脉冲计数来实现。遥信/遥控单元实现数字量的采集和输出控制。第三,智能分布式系统结构的外围层为设备层,包括采集层用到的传感器、二次控制回路等。设备层根据现场总线(CANBUS,PROFIBUS)网络传输速率快(》=50OkbS),软硬件实现简单等特点,可以CANBUS(上述实例是通过RS485等)来连接变电站内的其他自动化装置和保护单元、故障录波、馈线子站及无功补偿设备等的主干网,并通过现场总线网络连接到采集层,与上一层进行必要的数据通讯。本实例系统的CPU、专用的网络模块(NW150)和通讯模块(IFXXX)提供了多种标准通信接口(TTY,RS422,RS232,RS485),使得CPU的局部I/0总线扩展、远程扩展I/0(通过RS485电缆)以及CPU间的现场总线组网非常灵活,从而方便地实现系统纵向或横向集成。系统软、硬件方面良好的自诊断功能,可把故障范围减至***小。又由于PCC的CPU采用68000+RISC的32位微处理器,具有极强的运算处理能力,可使大量运算、控制功能、保护功能分散在各智能单元,大大提高了站内通信网的利用率,使整个系统效率达到***高。本系统具有可扩充的模块化结构、电源、CPU、网络板(NWXXX)、I/O板(数字量输入输出板DIXXX/DOXXX、模拟量输入板AIXXX等)、串口板等都是***的模板以总线方式连接在底板(basePLATE)上,它取代了标准的框架装配的局限性,可在标准的DIN轨道上任意拆装、组合。另外每个单元都有一电源模块PSXXX,并且总在***左边。系统电源是系统可靠性与完整性的***保证,PCC的输入电压有AC、DC两种,可实现交/直流切换。发展前景从上例可以看出,继承了PLC与微机技术的PCC技术形成的***代自动化软件硬件平台结构,具特点包括:高可靠性的元件、适应于工业环境运行的设计。采用32位CISC和RISC的CPU,大容量存储器,实时操作系统、支持计算机网络通讯、采用***语言编程和梯形图逻辑设计的标准软件硬件平台。***率的标准现场总线PROFIBUS、支持Peer-to-Peer的网络通讯方式和分布式处理,实现当地通讯,标准化软硬件模块设计,减少电缆,降低建设***和运行维护费用。配置灵活,容易在线扩充修改。易于实现横向纵向功能集成,达到实时信息的全局共享,实现白动化。应用软件开发的支持,不仅适合稳态的数据采集,也适合瞬态信号的采集。本地/远程诊断。总之,开放式系统平台是当前变电站自动化发展的方向。由于综合需要,网络技术、通讯协议的标准、分布式技术和数据共享、新的算法的研究以及随之而来的经济效益的研究等是当前变电站自动化研究的热点问题。PCC应用为变电站自动化提供了广阔的前景。现代的PCC与微机的发展相互渗透,已是一种可提供诸多功能的成熟的用户应用控制系统,而不是一种简单的逻辑控制器,它已被开发出更多的接口与具它控制设备进行通信、生成报告,多任务调度,可诊断白身故障及机器故障,这此优势使PCC可以实现各种变电站运行、分析与控制功能,符合当今的变电站自动化系统及站内自动化设备的高要求。利用PCC和现场总线局域网络组成变电站自动化系统不仅满足变电站对系统的功能结构要求,而且具有很高的性能价格比,是值得进一步探讨的一种可行性方案。CTICryogenics8186083G001ModuleHelixTechnology7MykrolisOptimizerDIMilliporeCBUV8S0P13newAMAT0020-07926BellowsShield,lowerECP,AnnealTylan2900seriesMFC,FC-2900V,He,100SCCM,S0008Tylan2900seriesMFC,FC-2900FV,He,500SCCM,S2017AMAT0190-77438VALVEMANIFOLDAMAT0040-78376SHAFT,RINSEARM,REFLECTION***CNCDQB125-U1A97PneumaticCylinderAMAT0010-030512NEWMalemaM-10000-T2021-0?0,954258Flowmeters,0.3-3.0L/m,0-10VDCoutput2NEWAMAT1400-01286SensorrawTFERTDsparefor0190-77171,3275303newAMAT0021-38827SLEEVEINConELCASSETTEHANDLERAMAT3870-02649ValvePneuDiaph3way125PSINC1/4VCR-F6AMAT0020-18513,Diffuser,Cleanport,HDPCVDULTIMATescom44-3262JR91-04ValveLooksVeryCleanSwagelokTeflonLiquidFlowValve,PneumaticAMATDXZChambershowerheadwithChemrazoringsealNEWAMAT0150-21117CableassemblyEMOINTCMainACtopumpframeNewportElectronicsF-CPL-L12355PBenchtopcoupler,1310nmand1550nmAMAT0020-21275,ChamberClampRing***CINR-244-217A,Thermo-concontroller2NEWAMAT0020-28225shuttleshaftrotationassembliesChemraz9363-SC520,2-363,Compound520OringSeal78-2738NEWVarian70854001ENDstationvacuumcontrollerChemraz9278-SC513,2-278,Compound513,11.984x0.139inch22-136504-00Kalrez5-37810.475x0.210inch,78-0161OringsealAMAT0020-09179,Insulationpipe,Quartz2AMAT0020-24532,CleanedLowerShieldsNEWAMAT0040-00598Panel,LowerExhaust5NEWCarloG***azzi5100637EDMTCTypeJInputprogramlockNEWAMAT0020-06329SlowVentFEEDThruAMAT0020-30287,CVDChamberpumpingplateadapter,200mmNEWAMAT0040-00595Processroughline,lowerseikoseikiAMAT0200-10176,Shadowring,Quartz,200mmEtchchamber,MXP+AceCoS33-744SusceptorAssy,200mm(Rebuild)NEWAMAT0022-77210LEFTFISLITOUTPUTLINTECmassflowcontrollerLM-1100M-8,TEOS0.1g/minAMAT0140-02118Harnessassy,DPSmetalIPECSpeedfamNovellus0760-727388Pneumaticendeffectorhousing***CswitchAMAT0140-02118Harnessassy,DPSmetal,300MMJ5ConnAMAT0190-00461MassStorageMODULE,FEPCTEACFC-1,19308111-11,RRT-SPL2008-1NEWAMAT0020-76201Insulationblock,MainACRemote,REVA,MEI-A-30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