调度自动化系统数据接收、转发硬软件的功能及其改进

文章介绍了茂名供电分公司调度自动化系统的结构、硬软件功能并作如下改进 :(1)将站端信号经光纤通道直接接入MOXA卡 ,使通讯速率提高 16倍 ,误码率大大减少。 (2 )通过修改程序 ,增加遥信确认功能 ,减少了遥信乱告警、乱打印问题。 (3)通过改动程序 ,使 2台前置机都能向通道发送选择命令和执行命令 ,大大提高了遥信成功率。总之 ,通过改进 ,其运行稳定 ,维护、扩容方便 ,安装Pcanywhere软件后可实现远方诊断和修改。

Functions of Data Acquisition and Transfer Hardware/Software for Dispatching Automatic System and Its Improvement

The author has described the structure, functions of the hardware and software of the dispatching automation system of Maoming Power Supply Branch and the following improvements: (1) the station end signals are directly linked to MOXA cards through optical cable channels, which has increased the communication rate by 16 times and greatly reduced the error code rate. (2) The remote-signal confirming function has been improved by means of correction of the program to reduce confused alarms and printing of the remote-signals. (3) Through modifying the program 2 pre-devices are capable to send selective commands and executive commands through the channels and as a result, the success of the remote communication has been greatly increased. In general speaking, the system has become stable in operation and convenience for maintenance and expansion after improvement. The system can also realize the remote diagonasis and revision after installation with the software"P can y where".