摘要
介绍了PLC系统构成及工作过程,阐述了PLC控制系统的现场应用。
This paper introduces' the composition and working process of PLC system, and expounds the field application of the PLC control system.
出处
《科技情报开发与经济》
2008年第6期199-200,共2页
Sci-Tech Information Development & Economy
关键词
PLC
选煤厂
桥式起重机
变频调速
PLC
coal preparation plant
bridge crane
fi-equency control