摘要
应用可编程序控制器的步进指令，通过时间位置顺序控制的小车运料系统和十字路口交通信号灯顺序控制示例，介绍步进指令的功能图、梯形图与编程技术。
Applying the step by step instruction of PLC, this paper introduces function diagram, ladder chart and programming technology of the step by step instruction by giving two examples such as time and position sequential control of the wheelbarrow system and traffic signal light sequential control of crossroads.
出处
《科技成果管理与研究》
2008年第6期28-30,共3页
Management And Research On Scientific & Technological Achievements
关键词
PLC
步进指令
功能图
梯形图
PLC
step by step instruction
function diagram
ladder chart
