This system uses PLC in railway signal system as the core controller and it replaces the additional electric centralized control mode , overcomes the disadvantages such as hugeness, low reliability .

• 该系统将可编程控制器用于铁路信号系统中并作为系统的核心控制器，取代了传统的电气集中控制方式，克服了其系统庞大，可靠性低的缺点。