反应堆仪控HA设备冗余状态监测

为了解冗余配置的高可用性（High Availability,HA）设备内部冗余单元的运行状态，以避免由于切换或冗余失效导致的严重后果或潜在风险，对基于EPICS（Experimental Physics and Industrial Control System）仪控系统样机中冗余配置的可编程序控制器（Programmable Logic Controller,PLC）和组件进行了冗余状态监测方法研究。通过修改输入／输出控制器（Input／Output Controller,IOC）冗余组件代码及开发PLC状态变量读取程序的方法，分别获取到二者的冗余单元状态并发布在监控层终端。实验证明此方法...

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Bibliographic Details
Published in核技术 Vol. 38; no. 4; pp. 74 - 79
Main Author 张宁 汪全全 郭冰 孙雪静 徐海霞 陈永忠
Format Journal Article
LanguageChinese
Published 中国科学院大学 北京100049 2015
中国科学院核辐射与核能技术重点实验室 上海201800%中国科学院上海应用物理研究所 嘉定园区 上海201800
中国科学院上海应用物理研究所 嘉定园区 上海201800
Subjects
EPICS
冗余
分布式控制系统
状态监测
高可用性
Experimental Physics and Industrial Control System (EPICS)
分布式控制系统
Redundancy
High availability
State monitoring
冗余
状态监测
高可用性
EPICS
Distributed Control Systems (DCS)
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ISSN0253-3219
DOI10.11889/j.0253-3219.2015.hjs.38.040603

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Summary:为了解冗余配置的高可用性（High Availability,HA）设备内部冗余单元的运行状态，以避免由于切换或冗余失效导致的严重后果或潜在风险，对基于EPICS（Experimental Physics and Industrial Control System）仪控系统样机中冗余配置的可编程序控制器（Programmable Logic Controller,PLC）和组件进行了冗余状态监测方法研究。通过修改输入／输出控制器（Input／Output Controller,IOC）冗余组件代码及开发PLC状态变量读取程序的方法，分别获取到二者的冗余单元状态并发布在监控层终端。实验证明此方法在几乎不增加系统资源的情况下可长期监测冗余单元状态，为进一步提高仪控系统的可用性提供技术支持。
Bibliography:Background： Redundancy configuration is widely adopted in the digitalized instrumentation and control （I＆C） system of third-generation reactors. For further availability improvement, state monitoring method of redundant configured Programmable Logic Controller （PLCs） and Input/Output Controller （IOC） components in Experimental Physics and Industrial Control System （EPICS） based I＆C system prototype was studied for the Thorium Molten Salt Reactor （TMSR） project. Purpose： In order to avoid serious consequence or potential risks caused by switch-over or redundancy failure, the running states of redundant units composed high availability （HA） devices in reactor I＆C system are expected to be accessed in real-time in this study. Methods： By means of adding the unit state reporting channels which could be transferred into Process Variables （PVs） for the acquisition of EPICS upper tier application, a novel method of monitoring redundant states of device units was developed. Source code of redundant monitor task （RMT）
ISSN:0253-3219
DOI:10.11889/j.0253-3219.2015.hjs.38.040603