【摘要】 文中介绍了RS-485总线在海气边界层观测系统的一个应用实例,包括RS-485总线的基本特性和MODBUS通信协议,重点对RS-485总线在系统中的应用架构及系统的高层通信协议的设计思路作了详细介绍。实际应用表明,系统采用RS-485总线通讯,具有易于安装维护、工作稳定、可靠的特点。更多还原

【Abstract】 The application of RS-485 bus in the air-sea boundary layer observing system is introduced,including the basic characteristics of RS-485 bus and the MODBUS communication protocol.The RS-485 bus application architecture in the system and the design idea about high level communication protocol of the system are introduced in detail.Practical application shows that when using the RS-485 bus,the system has such characteristics as easy to be installed and maintained,reliable and stable working.更多还原