| AB PLC在天然气SCADA系统中的冗余设计 |
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| 引用本文： | 张晓玲,张鹤川,魏宗康.AB PLC在天然气SCADA系统中的冗余设计[J].导航与控制,2016(6):14-20. |
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| 作者姓名： | 张晓玲 张鹤川 魏宗康 |
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| 作者单位： | 北京航天控制仪器研究所,北京,100039 |
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| 摘 要： | 基于网络控制的PLC冗余系统,通过设备实现冗余所需的自动事件同步和无扰动切换,不会丢失信息,无需切换时间.避免由于单个CPU故障造成系统瘫痪,系统故障率接近于零,保证系统的可靠性、稳定性和实时性.提出在天然气SCADA(Supervisory Control And Data Acquisition)系统,即数据采集与监视控制系统中,采用Rockwell公司的ControlLogix PLC冗余系统,利用以太网和ControlNet控制网构建了系统的硬件组网冗余方案,实现数据的采集和对现场设备的自动控制,在实际的应用中取得了良好的效果.
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| 关 键 词： | SCADA ControlLogix ControlNet 冗余系 |
Redundant Design of Natural Gas SCADA System
Based on AB PLC |
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| ZHANG Xiao-ling,ZHANG He-chuan and WEI Zong-kang.Redundant Design of Natural Gas SCADA System
Based on AB PLC[J].Navigation and Control,2016(6):14-20. |
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| Authors: | ZHANG Xiao-ling ZHANG He-chuan and WEI Zong-kang |
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| Institution: | Beijing Institute of Aerospace Control Devices;Beijing Institute of Aerospace Control Devices;Beijing Institute of Aerospace Control Devices |
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| Abstract: | PLC redundant system with network control may realize automatic event synchronization and undisturbed switching. The system not only has no information loss and no switching time, but it also avoids system breakdown beacause of single CPU fault, so that the system fault rate is close to zero and can ensure the reliability, stability and real-time. This paper presents the natural gas SCADA
system which uses ControlLogix PLC redundant system of Rockwell company. The system finishes data acquisition and control field devices automatically by using hardware network redundant solution which is made up of Ethernet and ControlNet network. Finally, it can achieve good results in practical application |
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| Keywords: | SCADA ControlLogix ControlNet redundant system |
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