HB6096数字总线带载能力提升改进研究-豆柴文库

您所在位置：网站首页 / HB6096数字总线带载能力提升改进研究.docx / 文档详情

在线预览结束，喜欢就下载吧，查找使用更方便

5 金币

下载文档

/ 2

下载提示

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

文本预览

HB6096数字总线带载能力提升改进研究
Introduction
HB6096digitalbusisawidelyusedcommunicationprotocolinindustrialcontrolsystems.Itoffersarobustandreliablecommunicationplatformforexchangingdatabetweenvariousdevicesinreal-time.However,theoriginalHB6096standardhasalimitedloadcapacity,whichcancauseperformanceissueswhenmultipledevicesareconnectedtothebus.ToimprovetheperformanceoftheHB6096digitalbusandincreaseitsloadcapacity,severalresearchershaveinvestigatedandproposedvariousmodifications.Thispaperaimstoreviewandevaluatesomeofthesemodificationsandassesstheirimpactonthebus'sperformance.
HB6096DigitalBusProtocol
TheHB6096digitalbusprotocolisasynchronousserialprotocolusedforcommunicationbetweendevicesinindustrialcontrolandautomationsystems.Itisatwo-wire,half-duplexbusconsistingofaclocksignalandadatasignal.Thedatasignalistransmittedinacontinuoussequenceofpackets,eachpacketcontainingeightbitsofdata.Theprotocolusesamaster-slavearchitecture,wherethemasterdeviceinitiatesthecommunicationandtheslavedevicesrespond.
TheoriginalHB6096protocolhasalimitedloadcapacityduetothenumberofdevicesthatcanbeconnectedtothebusandthedistancebetweenthesedevices.Themaximumnumberofdevicesthatcanbeconnectedtothebusislimitedtotwenty-five,andthetotaldistancebetweenthesedevicesislimitedtoonekilometer.
ProposedModificationstoIncreaseLoadCapacity
ToincreasetheloadcapacityoftheHB6096digitalbus,severalmodificationshavebeenproposed.Thesemodificationsaimtoeitherincreasethenumberofdevicesthatcanbeconnectedtothebusorincreasethedistancebetweenthesedevices.Someofthesemodificationsareasfollows:
1.MultipleBusTopology
OneproposedmodificationistousemultipleHB6096busesinsteadofonebus.Eachbuswouldhaveitsownmasterdeviceandalimitednumberofslavedevices.Themasterdeviceswouldcommunicatewitheachother,andtheslavedeviceswouldcommunicatewiththeirrespectivemasterdevices.Thismodificationwouldincreaseboththenumberofdevicesthatcanbeconnectedtothesystemandthedistancebetweenthesedevices.However,itwouldrequireadditionalwiringandcomplexityinthesystem.
2.