一种双总线双控制器软件冗余系统的设计

摘要

PLC redundance system based on network control is designed in this paper .After finishing the installation and configuration of the PC station , redundance controller ( ControlLogix controller , SoftLogix controller),communication module 1203-CN1,PowerFlex70 driver and cotrolled object model ,a redundance control system based on ControlNet is set up .The system can be two ControlLogix controllers or a ControlLogix controller and a SoftLogix controller .Application software RSLogix 5000 is used for I/O configuration of con-troller in redundance system and compling rung logical procedure .And using application software RSView 32 a supervisory panel of redundancy system is made .The experimental result indicate that ,The software redundant system is stabler ,the switching time can be smaller .%设计了基于网络控制的可编程控制器冗余系统。在完成PC工作站、冗余控制器（ ControlLogix控制器、SoftLogix控制器）、通信模块1203-CN1、变频器PowerFlex70、被控对象风动模型的安装和组态之后，采用NetLinx网络体系结构，架设了基于ControlNet的两个Control-Logix控制器之间以及ControlLogix 控制器与SoftLogix控制器间的冗余控制系统。应用软件RSLogix5000为冗余系统中的控制器进行了I/O组态，编写了梯形图程序。并且应用软件RS-View32制作了控制器冗余系统的监控画面。实验结果表明：双机软件冗余系统更加稳定，切换时间更小。