摘要
本文介绍了冗余功能的分类和硬软冗余的对比,阐述了ABB主流控制器AC800M系列PLC的冗余功能和拓扑结构。详细描述了ABB冗余控制器,冗余通信总线,冗余1 0模块的硬件选型和软件配置。弥补了市面上较少介绍ABB PLC产品,特别是ABB PLC冗余功能实现的缺憾,为广大工程技术人员在项目应用中实现冗余功能,提供了一定的参考价值。
The redundancy functionality and comparison of Hardware and Software redundancy are introduced. The realization of redundancy based on ABB AC800M PLC is described in detail, including selection and configuration of controller redundancy, fieldbus redundancy and IO redundancy. Because there are no enough resources on ABB PLC redundancy, this article provides a valuable reference for engineering technicians.
