SJ 51427/5-1999 B5-P-6、5/125-2型偏振保持光纤详细规范

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【英文标准名称】:Precastconcretepipes,fittingsandancillaryproducts-Specificationforreinforcedjackingpipeswithflexiblejoints
【原文标准名称】:下水道和污水工程用预制混凝土管和配件.第120部分:具有软接头的加筋套管的规范
【标准号】:BS5911-120-1989
【标准状态】:作废
【国别】:英国
【发布日期】:1989-04-28
【实施或试行日期】:1989-04-28
【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】:量值;涵洞;最大荷载;集料;挠曲试验;管联接器;水力试验;表面纹理;圆柱形;挠性;排水;破碎试验;地表水排水;温度;检验荷载;试验条件;剪切试验;排水管;下水道;杂质;压力检验;吸水试验;预制混凝土;水泥;试验设备;管;流体设备;定型试验;尺寸测量;管连接件;管子套圈;钢筋;形状公差;作标记;加筋混凝土;混凝土;管道配件;检验;尺寸公差;机械试验;吸水率;表面缺陷
【英文主题词】:size;inspection;crushingtests;drainage;sewers;surfacetexture;typetesting;aggregates;pipefittings;proofloading;precastconcrete;surfacedefects;impurities;maximumload;pipes;pressuretesting;flexibility;pipecouplings;water-absorptiontests;mechanicaltesting;culverts;marking;temperature;concretes;cylindricalshape;testequipment;dimensionaltolerances;waterabsorption;reinforcedconcrete;reinforcingsteels;sheartesting;pipecollars;surface-waterdrainage;formtolerances;cements;drainpipes;dimensionalmeasurement;deflectiontests;testingconditions;fluidequipment;hydraulictests;jackingpipes
【摘要】:
【中国标准分类号】:P41;Q14
【国际标准分类号】:23_040_50
【页数】:30P.;A4
【正文语种】:英语


【英文标准名称】:Industrialcommunicationnetworks-Fieldbusspecifications-Part6-4:Applicationlayerprotocolspecification-Type4elements
【原文标准名称】:工业通讯网络.现场总线规范.第6-4部分:应用层协议规范.4型元件
【标准号】:IEC61158-6-4-2007
【标准状态】:现行
【国别】:国际
【发布日期】:2007-12
【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】: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;服务设施;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;Definitions;Digital;Digitaldata;Digitalengineering;EDP;Electronicinstruments;Electronicsystems;Englishlanguage;Fieldbus;Guidancesystems;Industrial;Industrialfacilities;Informationinterchange;Informationprocessing;Informationtechnology;Interfaces(dataprocessing);Opensystemsinterconnection;Operationaltechniques;OSI;Processcontrolengineering;Protocolspecification;Protocols;Services;Specification;Specification(approval);Transmissionmedia;Transmissionprotocol
【摘要】:1.1GeneralThefieldbusapplicationlayer(FAL)providesuserprogramswithameanstoaccessthefieldbuscommunicationenvironment.Inthisrespect,theFALcanbeviewedasa“windowbetweencorrespondingapplicationprograms.”Thisstandardprovidescommonelementsforbasictime-criticalandnon-time-criticalmessagingcommunicationsbetweenapplicationprogramsinanautomationenvironmentandmaterialspecifictoType4fieldbus.Theterm“time-critical”isusedtorepresentthepresenceofatime-window,withinwhichoneormorespecifiedactionsarerequiredtobecompletedwithsomedefinedlevelofcertainty.Failuretocompletespecifiedactionswithinthetimewindowrisksfailureoftheapplicationsrequestingtheactions,withattendantrisktoequipment,plantandpossiblyhumanlife.1.2SpecificationsTheprincipalobjectiveofthisstandardistospecifythesyntaxandbehavioroftheapplicationlayerprotocolthatconveystheapplicationlayerservicesdefinedinIEC61158-5-4.Asecondaryobjectiveistoprovidemigrationpathsfrompreviously-existingindustrialcommunicationsprotocols.ItisthislatterobjectivewhichgivesrisetothediversityofprotocolsstandardizedinIEC61158-6.1.3ConformanceThisstandarddonotspecifyindividualimplementationsorproducts,nordotheyconstraintheimplementationsofapplicationlayerentitieswithinindustrialautomationsystems.Conformanceisachievedthroughimplementationofthisapplicationlayerprotocolspecification.
【中国标准分类号】:N18;P76
【国际标准分类号】:25_040_40;35_100_70;35_160
【页数】:40P;A4
【正文语种】:英语