基于MODBUS协议的单片机通讯系统设计

Design of Single-Chip Microcomputer Communication System Based on MODBUS Protocol

该项目是以水处理设备的应用为背景,设计开发一套以51单片机为核心的经济型通信模块,采用RS-232连接方式和MODBUS通讯协议,用于读取全自动软水器现场传感器数据状态。通过终端电脑控制程序处理,在监控电脑界面上给出图文预警及报警信号,保障设备工作状态。

The purpose of the research is to design and develop an economic communication module with51 single-chip microcomputer as the core under the background of the application of water treatment equipment, using RS-232 connection and MODBUS communication protocol to read the automatic water softener field sensor data. Through the terminal computer control program, monitoring computer interface shows the graphic warning and alarm signal to secure the operation of the equipment.