| Linux系统中CAN总线的Modbus通信实现 |
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| 引用本文： | 李月恒,项鹏,孙德辉.Linux系统中CAN总线的Modbus通信实现[J].计算机测量与控制,2011,19(7). |
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| 作者姓名： | 李月恒 项鹏 孙德辉 |
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| 作者单位： | 北方工业大学现场总线及自动化北京市重点实验室,北京,100144 |
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| 基金项目： | 国家自然科学基金资助项目(60874052) |
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| 摘 要： | 基于ARM9处理器及Linux2.6内核的操作系统设计了遵循Modbus协议的CAN总线通信模块,CPU选用工业级处理器AT91RM9200,CAN控制器和收发器分别采用MCP2510和PCA82C251,物理层遵循CAN协议,应用层遵循Modbus-RTU协议;模块充分发挥了处理器高速运行及CAN总线稳定、可靠的特点,能够与当前众多的监控组态软件无缝集成;该模块通信速度快、可靠性高、便于组态及扩展,通过与组态王软件连接测试表明,在多变量以及变量的采集频率低于10ms的情况下,数字量输入、输出都能做到0延迟,而且互不影响。
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| 关 键 词： | AT91RM9200 Linux2.6 CAN Modbus 组态王软件 |
Implementation of CAN Bus Comunication Module using Modbus Protocol Based on Linux System |
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| Li Yueheng,Xiang Peng,Sun Dehui.Implementation of CAN Bus Comunication Module using Modbus Protocol Based on Linux System[J].Computer Measurement & Control,2011,19(7). |
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| Authors: | Li Yueheng Xiang Peng Sun Dehui |
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| Affiliation: | Li Yueheng,Xiang Peng,Sun Dehui(Key Laboratory of Field Bus Technology & Automation,North China University of Technology,Beijing 100144,China) |
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| Abstract: | A communication module based on CAN bus and modbus protocol was designed mainly using ARM processor AT91RM9200,CAN controller MCP2510 and CAN bus sender/receiver PCA82C251.The software based on Linux2.6 operating system is designed to fulfill communication process.This Module using Modbus-RTU Application layer protocol implement a seamless communication with many kinds of controllers and genenal Monitoring softwares at high speed.This module runs stably,accurately and easy to construct network and expand.Ex... |
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| Keywords: | AT91RM9200 Linux2 6 CAN Modbus Kingview software |
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