电脑RS232转RS485接口，读取进口电能表（IEC1107规约）的数据并显示。VB开发环境。　通用读取程序，在兰吉尔电表测试通过。-Computer RS232 to RS485 interface, read the the imported energy meter (IEC1107 Statute) of data and display. VB development environment. General reading program, by Langille meter te

电能表通讯程序，用VB实现的。用于电能表电量和电压电流数据的读取，采用DL/T645-1997协议，适合初学者参考。-Energy meter communication program, using VB. It is used for reading nergy meter s power and voltage and current data .The program uses DL/T645-1997 protocol, suitable for beginners.