常用梯形图程序设计方法在PLC实验中的应用

摘要

This article introduces two kinds of commonly used LAD design methods:the experience design method and the sequence control design method, illustrates the comprehensive PLC experiment of traffic lights control,further makes a comparion between the two methods and sums up in detail.%以常用的经验设计法和顺序控制设计法为重点,介绍了这两种梯形图程序设计方法的特点、规律和设计方法及步骤.通过综合性实验十字路口交通灯控制的程序设计,对两种梯形图程序设计方法做了进一步的比较与总结.