基于Zynq平台的工业控制器双机冗余方案及应用  

Dual Redundancy Method and Application of Industrial Controller Based on Zynq

作　　者：吴波[1] 徐卫峰[1] 臧峰[1] 

机构地区：[1]南瑞继保电气有限公司,江苏南京211102

出　　处：《工业控制计算机》2018年第10期8-9,12,共3页Industrial Control Computer

摘　　要：针对现有工业控制器双机冗余运行中存在的问题和不足,提出一种基于Zynq平台的双机冗余设计方案。通过设计完备的硬件接口、双机心跳逻辑、从机数据镜像同步方法以及主从实时数据同步策略,实现控制器主从的自主判定、自动建立冗余同步并支持在线下载组态、置值等调试功能,同时避免故障发生时频繁切换问题。测试结果表明,该双机冗余方案稳定可靠,有效提高现场运行和维护效率。In order to solve problems in industrial controller of dual redundancy,a new redundant method based on Zynq platform is proposed in this paper.Through a well-designed hardware interface,dual-controller heartbeat method,data mirror synchronization for slave and dynamic data synchronization strategy within master and slave,it implements autonomous judgment of controller master-slave mode,automatic establishment of redundant synchronization,and additionally supports online download configuration,setting,etc.while avoiding frequent switching problems when failures occur.

关 键 词：Zynq QNX 工业控制器 双机冗余 主从切换 数据同步 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]