摘要
文章提出了用PLC代替继电器实现对断路器二次回路的控制,并通过对其硬件接线图、程序状态转移图和梯形图的分析,阐明了PLC控制的优点。
The paper refers to use PLC to replace electric switch to control, achieved control to ircuit-breaker secondary circuit. The paper also illustrates the merit of using PLC by analyzing hardware＇s wiring diagram, program sequential funtion chart and logic diagram.
关键词
断路器
二次回路
可编程控制器
状态转移图
梯形图
Circuit-breaker Secondary Circuit PLC Program Sequential Funtion Chart Logic diagram
