DIN EN 28632-4-1994 信息技术.计算机制图.图像描述信息存储和传送用存储器.第4部分:透明可读普通文本编码
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【英文标准名称】:Informationtechnology-Computergraphics;metafileforthestorageandtransferofpicturedescriptioninformation-Part4:Cleartextencoding(ISO/IEC8632-4:1992);EnglishversionEN28632-4:1994
【原文标准名称】:信息技术.计算机制图.图像描述信息存储和传送用存储器.第4部分:透明可读普通文本编码
【标准号】:DINEN28632-4-1994
【标准状态】:作废
【国别】:德国
【发布日期】:1994-09
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:数据表示;荧光屏;文档;数据传送;图象传输;功能描述;编码(程序设计);储存;图象描述信息;尺寸;信息;计算机制图;信息交流;数据处理
【英文主题词】:
【摘要】:
【中国标准分类号】:L81
【国际标准分类号】:35_140
【页数】:63P;A4
【正文语种】:德语
MIL-PRF-9977K(USAF)(w/AMENDMENT 1), PERFORMANCE SPECIFICATION MANUALS, TECHNICAL AND CHECKLISTS: MUNITIONS/WEAPONS LOADING PROCEDURES, NONNUCLEAR AND NUCLEAR AND PACKAGES, STANDARD DATA: MUNITIONS LOADING PROCEDURES, NONNUCLEAR (18 DEC 2003)., This document establishes the requirements for preparation of manuals and checklists for loading/unloading nuclear weapons and nonnuclear munitions on aircraft, and for checking various armament systems used to control/release/fire munitions and weapons that are approved for loading on an aircraft. In addition to “paper” delivery, this specification provides for electronic delivery of data through the use of the Document Type Definitions (DTD) contained in Appendixes A through J (see 6.2).【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part5-18:Applicationlayerservicedefinition-Type18elements
【原文标准名称】:工业通信网络.现场总线规范.第5-18部分:应用层设备定义.18型元件
【标准号】:IEC61158-5-18-2010
【标准状态】:现行
【国别】:国际
【发布日期】:2010-08
【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】:总线系统;总线;电路网络;通信;控制设备;控制系统;控制工艺学;数据通信;数据链层;数据连接系统;数据处理;数据设备;数据传送;定义;数字数据;数字工程;数字信号;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;工业设施;信息交换;信息处理;信息技术;接口;接口(数据处理);链路层;开放系统互连;OSI;物理层;过程控制;过程控制工程;过程控制系统;协议规范;协议;信号;传输媒质;传输协议
【英文主题词】:Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Controlequipment;Controlsystems;Controltechnology;Datacommunication;Datalinklayers;Datalinksystem;Dataprocessing;Dataservices;Datatransfer;Definitions;Digitaldata;Digitalengineering;Digitalsignals;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Fieldbus;Guidancesystems;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces;Interfaces(dataprocessing);Linklayers;Opensystemsinterconnection;OSI;Physicallayers;Processcontrol;Processcontrolengineering;Processcontrolsystems;Protocolspecification;Protocols;Signals;Transmissionmedia;Transmissionprotocol
【摘要】:Thefieldbusapplicationlayer(FAL)providesuserprogramswithameanstoaccessthefieldbuscommunicationenvironment.Inthisrespect,theFALcanbeviewedasa“windowbetweencorrespondingapplicationprograms.”ThispartofIEC61158providescommonelementsforbasictime-criticalandnon-time-criticalmessagingcommunicationsbetweenapplicationprogramsinanautomationenvironmentandmaterialspecifictoType18fieldbus.Theterm“time-critical”isusedtorepresentthepresenceofatime-window,withinwhichoneormorespecifiedactionsarerequiredtobecompletedwithsomedefinedlevelofcertainty.Failuretocompletespecifiedactionswithinthetimewindowrisksfailureoftheapplicationsrequestingtheactions,withattendantrisktoequipment,plantandpossiblyhumanlife.ThispartofIEC61158definesinanabstractwaytheexternallyvisibleserviceprovidedbytheType18fieldbusapplicationlayerintermsofa)anabstractmodelfordefiningapplicationresources(objects)capableofbeingmanipulatedbyusersviatheuseoftheFALservice,b)theprimitiveactionsandeventsoftheservice;c)theparametersassociatedwitheachprimitiveactionandevent,andtheformwhichtheytake;andd)theinterrelationshipbetweentheseactionsandevents,andtheirvalidsequences.ThepurposeofthispartofIEC61158istodefinetheservicesprovidedtoa)theFALuserattheboundarybetweentheuserandtheApplicationLayeroftheFieldbusReferenceModel,andb)SystemsManagementattheboundarybetweentheApplicationLayerandSystemsManagementoftheFieldbusReferenceModel.ThispartofIEC61158specifiesthestructureandservicesoftheType18IECfieldbusApplicationLayer,inconformancewiththeOSIBasicReferenceModel(ISO/IEC7498-1)andtheOSIApplicationLayerStructure(ISO/IEC9545).FALservicesandprotocolsareprovidedbyFALapplication-entities(AE)containedwithintheapplicationprocesses.TheFALAEiscomposedofasetofobject-orientedApplicationServiceElements(ASEs)andaLayerManagementEntity(LME)thatmanagestheAE.TheASEsprovidecommunicationservicesthatoperateonasetofrelatedapplicationprocessobject(APO)classes.OneoftheFALASEsisamanagementASEthatprovidesacommonsetofservicesforthemanagementoftheinstancesofFALclasses.Althoughtheseservicesspecify,fromtheperspectiveofapplications,howrequestandresponsesareissuedanddelivered,theydonotincludeaspecificationofwhattherequestingandrespondingapplicationsaretodowiththem.Thatis,thebehavioralaspectsoftheapplicationsarenotspecified;onlyadefinitionofwhatrequestsandresponsestheycansend/receiveisspecified.ThispermitsgreaterflexibilitytotheFALusersinstandardizingsuchobjectbehavior.Inadditiontotheseservices,somesupportingservicesarealsodefinedinthisstandardtoprovideaccesstotheFALtocontrolcertainaspectsofitsoperation.
【中国标准分类号】:M11
【国际标准分类号】:25_04_40;35_100_70;35_110
【页数】:40P.;A4
【正文语种】:英语
