摘要
Modbus协议是工业控制网络中用于对自控设备进行访问控制的主从式通信协议,由于其具有良好的适用性已在工业控制中得到广泛应用。本文在简要介绍了Modbus通信协议之后,对其关键技术进行了重点分析,设计并开发了基于Modbus协议的节点,给出了相应硬件设计框图及软件流程图。
Modbus protocol is a kind of communication protocol to access the devices in the industrial control network. Modbus protocol is introduced briefly in the paper and its key technology is analyzed in detail. The design and development of the nodes based on the Modbus protocol are also discussed.
出处
《自动化技术与应用》
2006年第5期49-51,共3页
Techniques of Automation and Applications
关键词
Modlms协议
RTU
通信
modbus protocol
remote terminal unit
communication
