基于Modbus协议的多功能数据采集器设计  

Design of Modbus Protocol—Based Multifunction Data Acquisition Device

作　　者：李永强[1] 单鸣雷[1] 朱昌平[1] 陈秉岩[1] 王庭 陈进 

机构地区：[1]常州市传感网与环境感知重点实验室江苏省输配电装备技术重点实验室河海大学,江苏常州213022 [2]常州顺创电气科技有限公司,江苏常州213000 [3]江苏省电动汽车快速充电设备工程技术研究中心,江苏常州213022

出　　处：《计算机测量与控制》2014年第3期839-841,862,共4页Computer Measurement &Control

基　　金：国家自然科学基金项目(11274092);常州市科技支撑项目(CE20110031;CE20120080;CE20120073);河海大学中央高校基本科研业务经费项目(2013B08814)

摘　　要：设计了以AVRmega128单片机为控制核心,采用Modbus协议,用于变电站环境综合监控系统的多功能数据采集器;该数据采集器具有8路模拟量信号输入,16路开关量信号输入,4路开关量信号输出,上行和下行RS一485或RS一232通信接口;此多功能数据采集器适用于多种传感器输入方式,接口数量丰富,以Modbus协议为统一通信规约,可设定定时采集,具有掉电数据保护功能;该设计有效地降低了管理和部署的成本,提高了经济效益;经过半年的现场测试,该多功能数据采集器在接入6路模拟量传感器、10路开关量传感器的情况下,收发数据正常,整体运行稳定,能胜任相关环境的监控需求。The design is the multifunction data acquisition device for substation comprehensive environment monitoring system, which is based on the Modbus protocol using ATMEGA128. The data acquisition device has 8--channel analog signal input interfaces, 16--channel switch signal input interfaces, 4--channel switch signal output interfaces, uplink and downlink communication interfaces of RS--485 or RS-- 232. The multifunction data acquisition device has plenty of input methods of sensors and interfaces. The communication protocol is unified to Modbus protocol, and the timing acquisition and the time interval can be set. The data protection has been designed for withstanding the power outage. The design effectively reduces the cost of management and deployment, improves economic efficiency. After six months of field testing with 6--channel analog sensors and 10--channel switch sensors, the data acquisition device can send and receive data properly, the system operates stably, which proves that the data acquisition device is competent to the relevant environmental monitoring requirements.

关 键 词：数据采集器 MODBUS协议 环境监控 多传感器 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]