基于MODBUS通信协议的智能型低压电器监控系统设计

Monitoring System of Intelligent Low Voltage Apparatus Based on MODBUS

设计了一款基于LabVIEW与MODBUS通信协议的智能型低压电器监控系统,实现了上位计算机与智能型低压电器的主从式串行通信。介绍了监控系统的总体构成,对系统的功能实现进行了详细的分析。软件部分采用LabVIEW图形化编辑语言开发完成,将LabVIEW软件引入到MODBUS通信协议的PC端监控系统设计中,从串口与读取数据参数设置、控制参数设置、示波器及数据实时显示、波形数据保存与回放四个模块来介绍上位机软件的开发。经实际应用表明,该系统可以可靠、快速、准确的进行数据交换,可以较好的满足新一代智能型低压电器产品进行MODBUS通信协议调试过程中对PC端监控的要求。

An intelligent low voltage apparatus monitoring system based on LabVIEW and MODBUS communication protocol is designed,it can realize the master-slave serial communication between host computer and intelligent low voltage apparatus.This paper introduces the overall composition of the monitoring system,and describes in details about functional analysis.The system software uses the graphical editing language provided by LabVIEW,and introduces the LabVIEW software into the design of MODBUS communication protocol monitoring system of the PC side,which mainly consists of four modules： serial port and read data parameter set,control parameter settings,real-time oscilloscope and data display,store and redisplay of the waveform data.