EPA现场控制器通信模块的设计与开发

《EPA现场控制器通信模块的设计与开发》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、浙江大学硕士学位论文EPA现场控制器通信模块的设计与开发姓名：桂本烜申请学位级别：硕士专业：检测技术与自动化装置指导教师：冯冬芹;褚健20060301浙江大学硕士学位论文开发和测试，得到了满意的结果。当前设计的EPA现场控制器已经运行在华东制药的一期、二期发酵控制系统的示范应用中，现场控制器运行稳定可靠。取得了良好的应用效果。【关键字】：_[业以太两EPA现场控制器协议栈软竹时间同步通信调度嘲络冗余浙江大学硕士学位论文AbstractInrecentyears，theadvantageofIndu

2、strialEthernethasbeenmaterializedincreasingly．Interiorly,EPAisaverypreponderantprotocolintheIndustrialEthernet，andithasgainedaveryillustrioussuccessinrecentyears．Andin2005，EPAhasbecomeanumberofIEC61158．WiththerapiddevelopmentofEPA，thedesignanddevelopm

3、entoftheEPAfielddevice，EPAfieldcontrollerandEPABridgeareverynecessitousnow．ThefieldcontrollerisaveryimportantpartoftheEPAcontrolsystemanditplaysaveryimportantroleinthesystem．ThecommunicationmoduleofEPAfieldcontrollerisusedasthestudyobjectinthisdissert

4、ation．Thisdissertationdeeplystudiedinthedesignofthereal—timeOS，theclocksynchronizationmethod，thecommunicationschedulemethod，thehighpricisetimerarrayandtherealtimenetworkredundancy．Incurrentsystem，todesignastableandprecisecommunicationschedulemoduleist

5、hemaintargetofthefieldcontroller’Sdesign，andthedesignofclocksynchronizationandtimerarrayisthebaseofthecommunicationschedulemodule．Sotheclocksynchronizationmodule，communicationschedulemoduleandthetimerarraymodulearetheemphasesofthisdissertation．Through

6、theanalysisofthesynchronizationsystem，somewaytoimprovethesynchronoussysteminfieldworkwasputforwardandWasdeeplydiscussedinthe4也chaptegAndweusethedelta-methodtobuildahighprecisetimerarrayinthesystem．Atlastthecommunicationschedule’Sprecisionisveryhigh．Th

7、eprecisionismuchaccuraterthanthedesignedgoal．Andinordertoimprovethestabilivyofthecommunicationmodule，arealtimenetworkredundancymodulewasaddedtothesystem．Theseprovideaverystablebaseforthesystem．Firstly,thisdissertationintroducedthehistoryandthelatestin

8、fomaationofIndustrialEthemet．TheresearchanddevelopmentoftheEPAsystemistheemphasisofthisdissertation．Inthe3nland4Illchapters，thehardwaredesignandsoftwaredesignoftheEPAprotocolisstudied．Themainpartofthehardwaredesignisaboutcommunicationcircuitde