继电器输出型PLC显示系统设计

DESIGN FOR DISPLAY SYSTEM CONTROLLED BY RELAY CONTACT OUTPUT TYPE OF PLC

本文对继电器输出型ＰＬＣ控制ＬＥＤ数码管的显示功能进行了详细的分析，解决了硬件继电器触点频繁开合的问题，并给出了实现上述功能的硬件电路和程序流程．

The display function of LED controlled by relay contact output type of PLC has been analyzed in detail, the problem of frequent operation of relay contact has been soved, and the hardware circuit and program flowchart have been given.