一种电度表的通讯程序,实际中已使用-a meter in the communication process, in reality has been used

dl645电度表通信。采购用VB串口控件开发，适用国内DL645-1997的多功能电度表通信-dl645 meter communications. VB serial port control by purchasing the development, application of domestic DL645-1997 multi-function watt-hour meter communication