摘要
介绍了平行冗余CPU冗余DO系统输出方案分析的应用范围;在单一故障准则下,对不同工艺情况MELTAC平台平行冗余CPU的冗余DO系统输出逻辑进行分析,提出两种平行冗余CPU冗余DO系统的输出运算方案,给出了对应的冗余DO配置的实现;最后较为全面地对比了平行冗余CPU单DO系统和平行冗余CPU冗余DO系统,为核电厂安全级DCS安全运行提供一定的参考。
In this paper, we first introduce redundant DO system output configuration based on safety DCS redundant parallel control. Under the principle of single thilure criterion, redundant DO system has different output sclleme on MELTAC platform due to different field equipment actuation requirement. We propose two redundant DO output configurations and two corresponding inplementalion schemes. We further compare the redundant DO system and single DO system in details.
出处
《自动化博览》
2012年第11期80-83,共4页
Automation Panorama1
