摘要
普通计算机与PLC串行通信可有效地提高控制系统的整体自动化程度,功能实现的关键问题是两者必须共同遵守统一的规定或规则,也就是通信协议。介绍了两种串口协议,即PPI协议与自由口协议,并加以比较,以提高使用者的认识水平及应用效率。
A realization of serial communication between PC and PLC can effectively improve the automation control system. The key point to this technology is that a regulation or a rule must be offered for both to observe, that is communication protocol. This paper introduces the PPI protocol and Freeport communication agreement, and the differences between them. The aim is to help consumer know them well and use them efficiently.
出处
《山西电子技术》
2008年第1期29-30,42,共3页
Shanxi Electronic Technology
基金
南通大学校级自然科学基金资助(NO.0622042)
关键词
计算机
PLC
串行通信
通信协议
computer
PLC
serial communication
communication protocol
