PLC输出特大空占比方波的三种编程方案

Three kinds of programing projects of square wave that the super possessive proportion of interspace that PLC output

为解决工业上电动机或电磁阀短时间工作、长时间停止的循环工作问题 ,现提出三种方案 .它是对可编程序短时延时网络的总结和提高 .下面将从设计程序、梯形图、工作原理时序图。

For settle to the industry electric motor or electromagnetic valve frequent work in industry , that needs long time time-lapse network to work again after stopped for long time.The three kinds of ways are summing up and improving of the program delay-time network . Now we will have a particular introduce about design programme, ladder-sharped plot , task principle time squence chart , programing instruction.