华电技术 ›› 2017, Vol. 39 ›› Issue (4): 44-45.

• 技术交流 • 上一篇    下一篇

DCS中4~20mA电流冗余输出实现方法分析

  

  1. 南京国电南自维美德自动化有限公司,南京〓210032
  • 出版日期:2017-04-25 发布日期:2017-05-23

Analysis of 4~20mA redundant current output in DCS

  1. Nanjing Guodian Nanzi Valmet Automation Company Limited, Nanjing 210032, China
  • Online:2017-04-25 Published:2017-05-23

摘要:

介绍了分散式控制系统(DCS)4~20mA电流输出回路的实现原理,在此基础上介绍了3种4~20mA电流冗余输出的实现方法,并针对各自的优缺点进行了分析。

关键词:

Abstract:

Introduces the distributed control system (DCS) 4~20mA current output circuit principle, on the basis of the introduced three kinds of the realization of 4~20mA current redundant output method, according to their respective advantages and disadvantages are analyzed.

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