Modbus数据通信总线在电量监测中的应用

Application of Modbus Data Communication Bus in Electric Quantity Monitoring

介绍了在低压配电站电量监测系统中,ABB公司电力监测部件(PMC916和RSI32)与上位监控计算机之间基于Modbus的数据通信。重点描述了在“组态王6.0”通用组态软件平台下的Modbus RTU通信协议及其配置方式,以及通过Modbus对配电柜的进线电压、电流、频率、断路器运行状态等电量和信号实施监测的过程。实践应用效果良好,值得同行参考借鉴。

The Modbus based data communication between ABB＇s electric power monitoring modules （ PMC916 and RSI32） and the host supervisory computer in the electric quantity monitoring system of the low voltage power distribution station is introduced. The Modbus RTU communication protocol and its configuration pattern under ＂Kingview 6.0＂ general configuration software platform, and the monitoring process for electric quantities and signals, e.g. inlet voltage, current, frequency and operation status of the breaker are described emphatically. The practice shows that the result is excellent and it is worth for reference.