摘要
随着数字信号处理技术在电力系统中的广泛应用,以及电力系统对智能保护装置提出的新的需求,选用TMS320F28335为核心处理器、和利时触摸屏为人机交互界面,开发了一种基于Modbus协议的通信方法。介绍了Modbus协议的通信帧格式,给出了数字信号处理器与触摸屏的硬件连接方式,并编写了结合数字信号处理器中串行通信接口功能的Modbus通信程序,实现了数据通信及通过触摸屏读取实时信号、更改整定值、检测设备状态等功能。
With the wide application of digital signal processing technology in power system and the new demand for intelligent protection device in power systems,a communication method based on Modbus protocol is developed with TMS320F28335 as the core processor and HollySys touch screen as the human-machine interaction interface.The communication frame format of Modbus protocol is introduced,the hardware connection mode between digital signal processor and touch screen is put forward and the Modbus communication program combined with the Serial Communication Interface(SCI)function of digital signal processor is compiled,which helps to realize the functions of data communication,reading real-time signal,changing the setting value and detecting equipment status through the touch screen,and so on.
作者
霍竞冲
李瑞
刘翼肇
孟润泉
HUO Jingchong;LI Rui;LIUYizhao;MENG Runquan(l.Shanxi Key Laboratory of Power System Operation and Control,Taiyuan University of Technology,Taiyuan,Shanxi 030024,China;Electric Power Research Institute of State Grid Shanxi Electric Power Company,Taiyuan,Shanxi 030001,China)
出处
《山西电力》
2023年第1期52-55,共4页
Shanxi Electric Power
基金
山西省科技重大专项(20181102028)
国网山西省电力公司电力科学研究院项目(520530200006)
