摘要
阐述了物理通信数据传输过程,介绍了Modbus协议及其体系结构;给出了用VC++和MFC开发上位机软件设计过程、设计总体框架、主要模块的功能;实践证明该软件实现了数据的快速发送和接收,运行稳定,符合设计功能要求。
Data transmission process of physical communication is described in this paper.Modbus protocol and its architecture are introduced;The development of PC software design process with VC＋＋ and MFC,the overall framework as well as the main module＇s functions are presented.It has been proved that the software can send and receive data fast,stable,meet the design functional requirements.
出处
《工业控制计算机》
2012年第7期79-80,共2页
Industrial Control Computer
