梯形图逻辑语言在港口自控系统中的应用

Application of Logic Language on Ladder Diagram in Auto control System of Port

以营口市鲅鱼圈港输煤自动控制系统的控制软件为例，介绍梯形图逻辑语言的特点及其在港口自动控制系统中的应用。

Abstract Taking the control software of auto-control system for coal convey of Bayuquan in Yingkou City as an example, the features of logic language on ladder diagram and its application in automatic control system in port is introduced.