编组站调度计划无线传输系统的研究--PC与ND250A模块通讯的实现

主要介绍了编组站调度生产无线传输系统研制的背景与应用需求,并着重表述了系统主要部件无线数传模块日精NIS-SEI ND250A的RS232通讯协议及通讯方法,详细说明了VISUAL BASIC的通讯控件MSCOMM的属性、方法、事件.通过实例对利用MSCOMM通讯控件进行RS232串口通讯的设计方法进行了详细讨论,并最终实现了Win2000/xp环境下PC与无线数传模块的RS232串口通讯控制.

The Development of Marshalling Yard Dispatcher Production Wireless Transmission System

This article mainly introduced the development background and the application demand of the marshalling yard dispatcher production wireless transmission system,and emphatically indicated the system major component to pass on module date RiJing NISSEI ND250A with the RS232 communication agreement and methods, then specify VISUAL BASIC serial communication controller MSCOMM's attributes, method and events.Through the instance to control use the MSCOMM communication to carry on the RS232 serial communication,and the design method to carry on the detailed discussion,and finally realized it under the win2000/xp environment with PC to pass on the module with the RS232 serial communication control.