数控系统中嵌入式PLC的设计

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1、天津大学硕士学位论文数控系统中嵌入式PLC的设计姓名：孙海建申请学位级别：硕士专业：机械电子工程指导教师：王国栋;王太勇20090501ABSTRACTWiththedevelopmentofembeddedtechnology,embeddedmicroprocessorhasbeenwidelyusedinvariousindustrialcontrolsystems．Inrecentyears，ARM(AdvancedRISCMachines)embeddedmicroprocessortechnologydevelopedrapidly,andthefeatures

2、ofsmallsize，lowpowerconsumption，lowcostandhighperformanceletthemicroprocessor32becomethemostwidelyusedinthearea．Inthemodernnumericalcontrolsystem，thetendencyofformidablelogicalprocessingfunctionprogrammablecontrollerandthecomputernumericalcontrolinstallmentintegrateasabodyismoreandmoreobvi

3、ously．OnthefoundationofCNCandPLC，thispaperhaschosenthecertainhardwareandsoftwareplatformcarriesontheembeddedPLCplatformresearchanddevelopment．ThehardwareisbasedOllthe32．bitembeddedMCUAT91SAM7S64ofATMEL．anditiSalsoequippedwiththerequiredperipheralmodulestoextenditselftoawholehardwaresystem．

4、Thesoftwareisbasedontheembeddedreal-timeoperatingsystempC／OS-II，andthesoftwareofdriveisneeded．Thissystemnotonlyhasvirtuesofhighreliability,highperformance，butalsocanbetransplantedandtrimmedSOwellastomodifyandreconfigurethefunctionsconvenientlyaccordingtosystemrequirement．Thefollowingarethe

5、mainresearchcontentsofthispaper：1．ThepaperresearchesonthehardwaredesignofmainboardwhichisbasedonAT91SAM7S64，andSOarethemodulesofstorage，I／O，communicationsandSOon．2．ThedesignoftheprintedcircuitboardofthePLCsystemiscompletedandalsodebugsmovessuccessfully．3．Thepaperresearchesonthetransplantof

6、theembeddedRTOS“C／OS—IIintothehardwareplatform，anddevelopedthebottomsoftwareofdriver．Finally,wemakeasummaryoftheworkofthesystem，andpointsoutwhattheembeddedPLCsystemneedstobeimprovedofmyownideasandviewpoint．KEYWORDS：ARM，PLC，laC／OS-II，EmbeddedSystem，RTOS独创性声明本人声明所呈交的学位论文是本人在导师指导下进行的研究工作和取得的研

7、究成果，除了文中特别加以标注和致谢之处外，论文中不包含其他入已经发表或撰写过的研究成果，也不包含为获得叁壅盘鲎或其他教育机构的学位或证书而使用过的材料。与我一同工作的同志对本研究所做的任何贡献均已在论文中作了明确的说明并表示了谢意。学位论文作者签名：硐漏趣签字日期．咖罗年多月多日学位论文版权使用授权书本学位论文作者完全了解叁凄盘鲎．有关保留、使用学位论文的规定。特授权苤盗盘堂．可以将学位论文的全部或部分内容编入有关数据库进行检索，并采用影印、缩印或扫描等复制手段保存、汇编以供查阅和借阅。同意学校向国家有关部门或机构