华电技术 ›› 2015, Vol. 37 ›› Issue (4): 22-24.

• 研究与开发 • 上一篇    下一篇

maxDNA分散控制系统I/O模件冗余实现机制

  

  1. (南京国电南自美卓控制系统有限公司,南京〓210032)
  • 出版日期:2015-04-25 发布日期:2015-06-02

Realization mechanism of I/O module redundancy of maxDNA distributed control system

  1. (Nanjing SAC Metso Control System Company Limited,Nanjing 210032, China)
  • Online:2015-04-25 Published:2015-06-02

摘要: 摘要:介绍了在maxDNA分散控制系统中,通过应用冗余I/O模件技术来提高系统可靠性的方法。针对不同的应用场合,maxDNA系统的I/O模件冗余配置有冗余I/O模件冗余和混合冗余两种方式,在混合冗余配置方式中有两种混合I/O切换模件Y-MODULE和I-MODULE,为非冗余I/O模件提供了不同的总线接入方式。使用中可根据现场的实际需求对maxDNA系统进行灵活的冗余配置,有效提高系统运行可靠性。

关键词: 关键词:分散控制系统, 冗余, I/O模件冗余

Abstract: Abstract:The redundant I/O module technology used in maxDNA distributed control system to improe the system reliability was introduced. Aiming at different applications, there are two modes for the I/O module redundant configuration of the maxDNA system, which are the redundant I/O module redundancy and the mixed redundancy. In the mixed redundancy configuration mode, there are two mixed I/O switching over modules YMODULE and IMODULE, which provide different ways to connect nonredundant I/O modules into I/O bus network. In actual application, according to actual needs, it is able to adopt flexible redundancy configuration for the maxDNA system to improve the system reliability.

Key words: Keywords:distributed control system (DCS), redundancy, I/O module redundancy