【英文标准名称】:Functionblocks(FB)forprocesscontrol-Part2:SpecificationofFBconcept
【原文标准名称】:过程控制用功能块(FB).第2部分:FB概念规范
【标准号】:IEC61804-2-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-09
【实施或试行日期】:
【发布单位】:国际电工委员会(IX-IEC)
【起草单位】:IEC/SC65C
【标准类型】:()
【标准水平】:()
【中文主题词】:自动控制系统;电路网络;通信系统;计算机软件;计算机控制;控制;控制工程;控制工艺学;数据总线;数据交换;数据网络;数据安全;数据传送;数据传输控制规程;定义;显影;设备文献;电气工程;功能块;信息处理;语言;管理;过程控制;过程控制工程;工艺工程;过程测量和控制技术;软件;规范;规范(验收);系统
【英文主题词】:Automaticcontrolsystems;Circuitnetworks;Communicationsystems;Computersoftware;Computerizedcontrol;Control;Controlengineering;Controltechnology;Databus;Dataexchange;Datanetwork;Datasecurity;Datatransfer;Datatransmissioncontrolprocedures;Definitions;Developments;Documentationofdevices;Englishlanguage;Functionblocks;Informationprocessing;Languages;Management;Processcontrol;Processcontrolengineering;Processengineering;Processmeasuringandcontroltechnology;Software;Specification;Specification(approval);Systems
【摘要】:ThispartofIEC61804isapplicabletoFunctionBlocks(FB)forprocesscontrol.ThisstandardspecifiesFBbyusingtheresultofharmonizationworkasregardsseveralelements:c)thedevicemodelwhichdefinesthecomponentsofanIEC61804-2conformantdevice;d)conceptualspecificationsofFBsformeasurement,actuationandprocessing.Thisincludesgeneralrulesfortheessentialfeaturestosupportcontrol,whilstavoidingdetailswhichstopinnovationaswellasspecializationfordifferentindustrialsectors.ThisstandarddefinesasubsetoftherequirementsofIEC61804-1(hereafterreferredtoasPart1)only,whilePart1describesrequirementsforadistributedsystem.TheconformancestatementinAnnexB,whichcoverstheconformancedeclaration,isrelatedtothisstandardonly.RequirementsofPart1arenotpartoftheseconformancedeclarations.ThestandardizationworkforFBwascarriedoutbyharmonizingthedescriptionofconceptsofexistingtechnologies.Itresultsinanabstractlevelthatallowedthedefinitionofthecommonfeaturesinauniqueway.ThisabstractvisioniscalledheretheconceptualFBspecificationandmappedtospecificcommunicationsystemsandtheiraccompanyingdefinitionsbytheindustrialgroups.ThisstandardisalsobasedontheabstractdefinitionsofIEC61499-1.NOTEThisstandardcanbemappedtoISO15745-1.Therearesolutionsonthemarkettoday,whichfulfiltherequirementsofthisstandardandshowhowtheconceptualspecificationisimplementedinagiventechnology.Newtechnologieswillneedtofindequivalentsolutions(seeFigure4).
【中国标准分类号】:N17
【国际标准分类号】:25_040_40;35_060;35_240_50
【页数】:59P.;A4
【正文语种】:英语


【英文标准名称】:StandardInverse-TimeCharacteristicforOvercurrentRelays
【原文标准名称】:过流继电器的标准反时特性(曲线)
【标准号】:ANSI/IEEEC37.112-1996
【标准状态】:现行
【国别】:美国
【发布日期】:1996
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:IEEE
【标准类型】:()
【标准水平】:()
【中文主题词】:保护设备;继电器
【英文主题词】:Deceleration;Electricalengineering;Electronicengineering;Energysupplysystems(buildings);Equations;Induction;Influencefactors;Influencequantity;Microprocessors;Overcurrent;Overcurrentrelays;Properties;Protectiondevices;Protectiverelays;Relays;Selfskinning;Specification(approval);Time-delayrelays
【摘要】:Theinverse-timecharacteristicsofovercurrentrelaysaredefined.Reviewsvariousexistinganalytictechniquesusedtorepresentrelayoperatingcharacteristsiccurveshapesandproposesanalytical(formula)representationoftypicaloperatingcharacteristiccurveshapestofostersomestandardizationofavailableinverse-timerelaycharacteristicsprovidedinmicroprocessororcomputerrelayapplications.
【中国标准分类号】:K31
【国际标准分类号】:29_120_70
【页数】:
【正文语种】:英语