基于PLC的地铁通风空调控制系统设计

The design of the subway ventilation and air conditioning control system based on PLC

随着计算机控制技术的迅速发展,以微处理器为核心的可编程序控制器已逐步取代继电器,普遍应用于各行各业的自动化控制领域。该文主要探讨了AB公司的PLC及其网络技术在西安地铁一号线通风空调控制系统中的应用,详细阐述了通风空调控制系统的组成与控制策略,并介绍了PLC控制程序与触摸屏上位监控程序的开发设计。该控制系统已在西安地铁实际工程项目中成功应用,取得了良好效果。

With the rapid development of computer control technology, the microprocessor as the core programmable logic controller has been gradually replacing the relay, commonly used in the field of automatic control of all walks of life. This paper mainly discusses the application of the AB＇s PLC and network technology in Xi＇an Metro Line ventilation and air conditioning control system, elaborate the components and control strategy of the ventilation and air conditioning control system, and introduced the PLC control program and design of the touch-screen host monitoring program. The control system has been successfully applied in the actual project of Xi＇an subway, and achieved good results.