Portmon3.02 是一款监视通讯串口状态的工具。用来监听上下位机串口相关操作，并截获收发数据的串口工具，不占用串口资源，将访问串口事件和数据报文捕获，并可以保存日志便于分析。是每个做串口通讯的技术人员不可多得的串口工具。-

Portmon3.02 is a tool to monitor the status of the communication port. It is used to monitor the serial port related operations of the upper and lower computer, and intercepts the serial port tool for sending and receiving data. It does not take up the serial port resource, will capture the serial port event and data message, and can save the log for analysis. Serial communication is a rare technical staff of the serial port tools.