您的位置: 标准下载 » 国内标准 » 行业标准 »

HB 3458-1984 IT6至IT14级用硬质合金双头组合卡规(D≤6)

作者:标准资料网 时间:2024-05-14 12:52:42  浏览:8646   来源:标准资料网
下载地址: 点击此处下载
基本信息
标准名称:IT6至IT14级用硬质合金双头组合卡规(D≤6)
中标分类:
替代情况:替代HB 776-1973 HB 777-1973 HB 778-1973 HB 779-1973 HB 780-1973 HB 781-1973 HB 782-1973 HB 783-1973 HB 784-1973 HB 785-1973 HB 786-1973 HB 787-1973 HB 788-1973 HB 789-1973 HB 790-1973 HB 791-1973 HB 798-1974 HB 800-1973 HB 979-1973 HB 980-1973
发布日期:1984-10-01
实施日期:1985-01-01
首发日期:1900-01-01
作废日期:1900-01-01
出版日期:1900-01-01
页数:6页
适用范围

没有内容

前言

没有内容

目录

没有内容

引用标准

没有内容

所属分类:
下载地址: 点击此处下载
基本信息
标准名称:水利水电基本建设工程单工程质量等级评定标准(四)水力机械辅助设备安装工程
中标分类:
替代情况:被DL/T 5113.4-2012代替
发布日期:1900-01-01
实施日期:1992-12-01
首发日期:1900-01-01
作废日期:2012-03-01
出版日期:1900-01-01
页数:14页
适用范围

没有内容

前言

没有内容

目录

没有内容

引用标准

没有内容

所属分类:
【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