摘要
结合PLC温度监控系统项目的开发,介绍了欧姆龙CPM2A串行通信接口的工作机制,阐述了VB环境下实现上位机和PLC温度监控系统的串行通信技术,并给出其关键程序。实际应用表明,该系统具有可靠性高,人机对话功能完善,监控方便等优点。
With the development of the project PLC temperature monitoring system,the mechanism of the serial commu-nication interface is introduced in OMRON PLC（CPM2A）.Under the VB environment,it mainly expatiates upon the serial communication technique between the PLC temperature monitoring system and PC and presents the key programs.The practical application shows that the system has the advantages of high reliability,perfect man-machine dialogue and conve-nience monitor.
出处
《湖南工业大学学报》
2007年第6期91-93,共3页
Journal of Hunan University of Technology
