基于TwinCAT软件的EtherCAT诊断应用
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摘要
针对EtherCAT现场总线中临时从站关机插拔带来的低效问题,基于TwinCAT软件提出一种支持实时检测和反馈的可靠解决方案。在分析EtherCAT报文的基础上,采用设置同步单元和分配工作状态字的方法,以不影响其他设备EtherCAT通讯为前提,最大化地降低关机插拔对生产过程的影响,缩减EtherCAT的整体诊断时间,提高生产效率,在现场生产中具有较好的推广应用价值。
Interim stations need to turn them off and plug on EtherCAT fieldbus,leading to poor efficiency. A reliable solution based on TwinCAT software that supports real-time detection and feedback is proposed. The frames of the EtherCAT are analyzed. The impact of shutdown and plug on the process of production is reduced by setting a synchronization unit and assigning working counter without affecting the communication of other EtherCAT equipment,thus faster EtherCAT diagnosis and higher efficiency of production.
Interim stations need to turn them off and plug on EtherCAT fieldbus,leading to poor efficiency. A reliable solution based on TwinCAT software that supports real-time detection and feedback is proposed. The frames of the EtherCAT are analyzed. The impact of shutdown and plug on the process of production is reduced by setting a synchronization unit and assigning working counter without affecting the communication of other EtherCAT equipment,thus faster EtherCAT diagnosis and higher efficiency of production.
引文
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[3]EtherC AT Technology Group.EtherC AT-the ethernet fieldbus[EB/OL].(2011-05-18)[2016-04-05]http://www.ethercat.org.
[4]崔巍,朱迎春,孙亚蕾.现场总线系统抗干扰的实现与应用[J].中国仪器仪表,2006(10):67-69.
[5]EtherC AT技术协会.EtherC AT的诊断和错误定位[J].国内外机电一体化技术,2014,2014(4):27-28.
[6]郇极,肖文磊,刘艳强.工业以太网EtherC AT冗余和热插拔技术[J].北京航空航天大学学报,2009,35(2):158-161.
[7]匡昌武,方厚辉,冗余链路技术在工业以太网中的应用分析[J].工业控制计算机,2007,20(3):18-19.
[8]修建竹.基于EtherC AT网络的实时控制技术研究[D].大连:大连理工大学,2010.
[9]范振军.基于EtherC AT协议的多从站实时数据传输系统设计[D].西安:西安电子科技大学,2012.
[10]杨昊佐.工业以太网EtherC AT从站设计[D].西安:西安电子科技大学,2013.
[11]EtherC AT Technology Group.EtherC AT diagnosis for developers[EB/OL].(2015-07-14)[2016-4-13]http://www.ethercat.org.cn.
[12]EtherC AT技术组.EtherC AT——技术介绍及发展概貌[J].国内外机电一体化技术,2006(6):17-24.
[13]Yoon G,Kwon D H,Kwon S C,et al.Ringtopology-based redundancy Ethernet for industrial network[C].Japan:2006SICE-ICASE International Joint Conference,2006.
[14]王常力,罗安.分布式控制系统(DCS)设计与应用实例[M].北京:电子工业出版社,2004.
[15]Madren Frank.Redundancy with standards in industrial Ethernet LANs[J].PC Control,2005(7):14-19.