【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part6-3:Applicationlayerprotocolspecification—Type3elements
【原文标准名称】:工业通信网络.现场总线规范.应用层协议规范.3型元件
【标准号】:BSEN61158-6-3-2008
【标准状态】:作废
【国别】:英国
【发布日期】:2008-06-30
【实施或试行日期】:2008-06-30
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:应用层;应用;总线系统;总线;电路网络;通信;计算机应用;计算机控制;控制;控制设备;控制系统;控制工艺学;数据总线;数据通信;数据交换;数据传输线;数据连接系统;数据网络;数据处理;数据服务;数据传送;数据传输控制规程;定义;数字的;数字数据;数字工程;电子数据处理;电气工程;电子仪器;电子系统;现场总线;制导系统;工业的;工业设施;信息交换;信息处理;信息技术;接口(数据处理);开放系统互连;操作技术;OSI;过程控制工程;协议规范;协议;服务;规范;规范(验收);传输媒质;传输协议
【英文主题词】:Applicationlayer;Applications;Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Computerapplications;Computerizedcontrol;Control;Controlequipment;Controlsystems;Controltechnology;Databus;Datacommunication;Dataexchange;Dataline;Datalinksystem;Datanetwork;Dataprocessing;Dataservices;Datatransfer;Datatransmissioncontrolprocedures;Definition;Definitions;Digital;Digitaldata;Digitalengineering;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces(dataprocessing);Opensystemsinterconnection;Operationaltechniques;OSI;Processcontrolengineering;Protocolspecification;Protocols;Services;Specification;Specification(approval);Transmissionmedia;Transmissionprotocol
【摘要】:Thisstandardprovidescommonelementsforbasictime-criticalandnon-time-criticalmessagingcommunicationsbetweenapplicationprogramsinanautomationenvironmentandmaterialspecifictoType3fieldbus.Theterm“time-critical”isusedtorepresentthepresenceofatime-window,withinwhichoneormorespecifiedactionsarerequiredtobecompletedwithsomedefinedlevelofcertainty.Failuretocompletespecifiedactionswithinthetimewindowrisksfailureoftheapplicationsrequestingtheactions,withattendantrisktoequipment,plantandpossiblyhumanlife.ThisstandarddefinesinanabstractwaytheexternallyvisiblebehaviorprovidedbytheType3fieldbusapplicationlayerintermsofa)theabstractsyntaxdefiningtheapplicationlayerprotocoldataunitsconveyedbetweencommunicatingapplicationentities,b)thetransfersyntaxdefiningtheapplicationlayerprotocoldataunitsconveyedbetweencommunicatingapplicationentities,c)theapplicationcontextstatemachinedefiningtheapplicationservicebehaviorvisiblebetweencommunicatingapplicationentities;andd)theapplicationrelationshipstatemachinesdefiningthecommunicationbehaviorvisiblebetweencommunicatingapplicationentities;and.Thepurposeofthisstandardistodefinetheprotocolprovidedto1)definethewire-representationoftheserviceprimitivesspecifiedinIEC61158-5-3,and2)definetheexternallyvisiblebehaviorassociatedwiththeirtransfer.ThisstandardspecifiestheprotocoloftheType3fieldbusapplicationlayer,inconformancewiththeOSIBasicReferenceModel(ISO/IEC7498)andtheOSIApplicationLayerStructure(ISO/IEC9545).FALservicesandprotocolsareprovidedbyFALapplication-entities(AE)containedwithintheapplicationprocesses.TheFALAEiscomposedofasetofobject-orientedApplicationServiceElements(ASEs)andaLayerManagementEntity(LME)thatmanagestheAE.TheASEsprovidecommunicationservicesthatoperateonasetofrelatedapplicationprocessobject(APO)classes.OneoftheFALASEsisamanagementASEthatprovidesacommonsetofservicesforthemanagementoftheinstancesofFALclasses.TheprincipalobjectiveofthisstandardistospecifythesyntaxandbehavioroftheapplicationlayerprotocolthatconveystheapplicationlayerservicesdefinedinIEC61158-5-3.Asecondaryobjectiveistoprovidemigrationpathsfrompreviously-existingindustrialcommunicationsprotocols.ItisthislatterobjectivewhichgivesrisetothediversityofprotocolsstandardizedinpartsoftheIEC61158-6series.
【中国标准分类号】:L79
【国际标准分类号】:35_100_70;35_160;35_240_50
【页数】:384P.;A4
【正文语种】:英语


【英文标准名称】:Connectorsforelectronicequipment-Testsandmeasurements-Part15-2:Connectortests(mechanical)-Test15b:Insertretentioninhousing(axial)
【原文标准名称】:电子设备用连接器.试验和测量.第15-2部分:连接器试验(机械的).试验15b:壳体中插入件稳固性(轴向)
【标准号】:IEC60512-15-2-2008
【标准状态】:现行
【国别】:国际
【发布日期】:2008-05
【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/SC48B
【标准类型】:()
【标准水平】:()
【中文主题词】:轴向;元件;触点;接触插入物;触点稳固设备;电连接;电触点;电插头;电气元件;电气工程;机电的;机电学;电子工程;电子设备;电子设备及元件;电子仪器;外壳;轴承箱;测量;测量技术;机械试验;力学;插头;应力;测试
【英文主题词】:Axial;Components;Contact;Contactinserts;Contactretentionsystems;Electricconnection;Electriccontacts;Electricplugs;Electricalcomponents;Electricalengineering;Electromechanical;Electromechanics;Electronicengineering;Electronicequipment;Electronicequipmentandcomponents;Electronicinstruments;Enclosures;Housings;Measurement;Measuringtechniques;Mechanicaltesting;Mechanics;Plugs;Retentionforce;Stress;Testing
【摘要】:
【中国标准分类号】:L23
【国际标准分类号】:31_220_10
【页数】:13P;A4
【正文语种】:英语