遵循电力部DL/T645-1998协议，通过RS485总线,采集并存储，电表的数据通过无线(红外)进行数据通讯.51单片机程序．-Follow the Ministry of Electric Power DL/T645-1998 agreement, through the RS485 bus, collected and stored meter data via wireless (infrared) for data communication .51 monolithic Mach

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

利用S7-200PLC的port0读取RS485接口仪表的数据(Use S7-200PLC port0 to read data from RS485 interface meter)

MODBUS RTU 485 单台仪表通信取数(The number of MODBUS RTU 485 single meter communication)