介绍了PLC(可编程控制器)和触摸屏组合的控制系统在多组分、多气路的气体分析仪器中的应用。简单介绍了PLC和触摸屏的硬件配置,主要阐述了控制系统组成以及PLC和触摸屏的软件设计。应用CPU226和MP277触摸屏,设计自动化程度高、操作显示直观的多组分气体分析仪。 The application of PLC (programmable controller) and touch screen combination control system in multi-component, multi-gas gas analyzer is introduced. Briefly introduced the hardware configuration of PLC and touch screen, mainly elaborated the composition of control system and the software design of PLC and touch screen. Application CPU226 and MP277 touch screen, high degree of automation design, operation and intuitive multi-component gas analyzer.