【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part3-16:Data-linklayerservicedefinition-Type16elements
【原文标准名称】:工业通信网络.现场总线规范.数据链路层服务定义.16型元件
【标准号】:BSEN61158-3-16-2008
【标准状态】:现行
【国别】:英国
【发布日期】:2009-01-31
【实施或试行日期】:2009-01-31
【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】: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;数据服务;数据传送;定义;数字的;数字数据;数字工程;EDP;电气工程;电子仪器;电子系统;英语;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;接口(数据处理);链路层;开放系统互连;OSI;过程控制;过程控制工程;过程控制系统;信号;规范;规范(验收);传输媒质
【英文主题词】:Bussystems;Buses(dataprocessing);Circuitnetworks;Communication;Controlequipment;Controlsystems;Controltechnology;Datacommunication;Datalinklayers;Datalinksystem;Dataprocessing;Dataservices;Datatransfer;Definition;Definitions;Digital;Digitaldata;Digitalengineering;EDP;Electricalengineering;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces;Interfaces(dataprocessing);Linklayers;Opensystemsinterconnection;OSI;Processcontrol;Processcontrolengineering;Processcontrolsystems;Signals;Specification;Specification(approval);Transmissionmedia
【摘要】:1.1OverviewThisstandardprovidescommonelementsforbasictime-criticalmessagingcommunicationsbetweendevicesinanautomationenvironment.Theterm“time-critical”isusedtorepresentthepresenceofatime-window,withinwhichoneormorespecifiedactionsarerequiredtobecompletedwithsomedefinedlevelofcertainty.Failuretocompletespecifiedactionswithinthetimewindowrisksfailureoftheapplicationsrequestingtheactions,withattendantrisktoequipment,plantandpossiblyhumanlife.ThisstandarddefinesinanabstractwaytheexternallyvisibleserviceprovidedbytheType16fieldbusdata-linklayerintermsofa)theprimitiveactionsandeventsoftheservice;b)theparametersassociatedwitheachprimitiveactionandevent,andtheformwhichtheytake;andc)theinterrelationshipbetweentheseactionsandevents,andtheirvalidsequences.Thepurposeofthisstandardistodefinetheservicesprovidedto?theType16fieldbusapplicationlayerattheboundarybetweentheapplicationanddatalinklayersofthefieldbusreferencemodel,and?systemsmanagementattheboundarybetweenthedata-linklayerandsystemsmanagementofthefieldbusreferencemodel.1.2SpecificationsTheprincipalobjectiveofthisstandardistospecifythecharacteristicsofconceptualdata-linklayerservicessuitablefortime-criticalcommunications,andthussupplementtheOSIBasicReferenceModelinguidingthedevelopmentofdata-linkprotocolsfortime-criticalcommunications.Asecondaryobjectiveistoprovidemigrationpathsfrompreviously-existingindustrialcommunicationsprotocols.ThisspecificationmaybeusedasthebasisforformalDL-Programming-Interfaces.Nevertheless,itisnotaformalprogramminginterface,andanysuchinterfacewillneedtoaddressimplementationissuesnotcoveredbythisspecification,includinga)thesizesandoctetorderingofvariousmulti-octetserviceparameters,andb)thecorrelationofpairedrequestandconfirm,orindicationandresponse,primitives.1.3ConformanceThisstandarddoesnotspecifyindividualimplementationsorproducts,nordotheyconstraintheimplementationsofdata-linkentitieswithinindustrialautomationsystems.Thereisnoconformanceofequipmenttothisdata-linklayerservicedefinitionstandard.Instead,conformanceisachievedthroughimplementationofthecorrespondingdata-linkprotocolthatfulfillstheType16data-linklayerservicesdefinedinthisstandard.
【中国标准分类号】:M10;L79
【国际标准分类号】:25_040_40;35_100_20;35_240_50
【页数】:30P.;A4
【正文语种】:英语


【英文标准名称】:Non-biologicalsystemsforuseinsterilizers-Part5:SpecificationforindicatorsystemsandprocesschallengedevicesforuseinperformancetestingforsmallsterilizersTypeBandTypeS;GermanversionEN867-5:2001
【原文标准名称】:消毒器用非生物系统.第5部分:B型和S型小型消毒器的指示和处理系统规范.
【标准号】:EN867-5-2001
【标准状态】:现行
【国别】:
【发布日期】:2001-11
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:设备;定义;定义;监督(认可);蒸汽灭菌;灭菌;指示器;蒸汽灭菌器;小器具;试件;示踪法;医学科学;试验;灭菌器;规格试验;效率;医疗技术学;小型消毒器;非生物的;规范(验收);包装件;处理
【英文主题词】:Definition;Definitions;Efficiency;Equipment;Indicators;Medicalsciences;Medicaltechnology;Miniaturesterilizer;Non-biological;Packages;Process;Ratingtests;Smallappliances;Specification(approval);Steamsterilization;Steamsterilizers;Sterilization(hygiene);Sterilizers;Surveillance(approval);Testpieces;Testing;Tracermethods
【摘要】:
【中国标准分类号】:C30
【国际标准分类号】:11_080_10
【页数】:25P.;A4
【正文语种】:英语