【摘要】 详细分析了实现PC机和检测仪器串行通讯的方法和技巧 ,介绍了PC机和检测仪器之间RS4 85串行通讯的硬件连接以及VisualBasic 6 .0的Mscomm通讯控件的使用方法。利用Mscomm控件的唯一事件OnComm事件通过查询方式实现通讯。实际应用表明 ,本文设计的程序实现方便且实用性强 ,很好地解决了企业信息化管理的关键问题更多还原

【Abstract】 The serial communication methods and techniques between PC and testing instruments programmed by Visual Basic 6.0 are analysed broadly in this paper.The hardware connection of RS485 serial communication between PC and testing instruments is introduced,and the use of Mscomm control files is discussed also.The serial communication is implanted by the only- event Oncomm of Mscomm by inquiring model.The successful running of the program indicates that it is both rationality and veracity,which get solved the difficulty in enterprise information management system.更多还原