可编程控制器在变电所中央信号系统中的应用

Application of Programmable Controller to the Central Signal System of Substation

叙述了采用可编程控制器控制变电所中央信号系统的原理 ,并以两路事故信号、两路预告信号为例 ,讨论了由可编程控制器实现事故音响信号、预告信号、灯光信号的过程。

The principle of central signal system of substation controlled by programmable controller is introduced.To set two routes accidental signal and forecasting signal as example,the process of accidental signal and forecasting signal and lighting controlled by programmable controller are discussed.