摘要
为了保持PLC与嵌入式系统之间基于工业以太网系统的稳定性,设计一种基于心跳信号的工业以太网可靠性检测算法,并将其应用于PLC与嵌入式装置构建的自动化工业以太网中.通过这种方法在网络节点间传递包含心跳信号的报文,判断PLC与嵌入式系统在通信时是否存在数据报文丢失现象,并采取相应的措施,减少两者之间的丢包率提高工业以太网间服务和通信的可用性和可靠性;同时,还有效地降低了网络中单主站多从站工作模式下PLC的网络负担.
In order to maintain the stability of industrial Ethernet system between PLC and embedded system,an industrial Ethernet reliability Detection algorithm is designed,based on heartbeat,and is applied to automatic industrial Ethernet which is built by PLC and the embedded system.In this way,it transfers message containing heartbeat between network nodes,determines whether between PLC and the embedded system has data loss in communication,and takes steps to reduce the packet losses rate between PLC and the embedded system,improve the availability and the reliability of the industrial Ethernet service,meanwhile,effectively reduce the burden of PLC in the industrial Ethernet which contains a single master and multi-slavers.
作者
文杰
鄢锋
WEN Jie 1,YAN Feng 2(1.School of Electrical Engineering,University of South China,Hengyang,Hunan 421001,China;2.Changsha Engineering ＆ Research Institute Ltd of Nonferrous Metallurgy,Changsha,Hunan 410011,Chin)
出处
《南华大学学报（自然科学版）》
2018年第4期47-53,共7页
Journal of University of South China：Science and Technology
关键词
PLC
心跳信号
丢包率
工业以太网
嵌入式系统
PLC
heartbeat
packet losses rate
industrial Ethernet
the embedded system
