谈自动扶梯PLC控制程序的结构化设计

Discussion on Structurized Program Design of PLC Control for Escalator

以自动扶梯Y-△切换型拖动方式为例，分析了PLC控制程序常见的功能模块，讨论了PLC控制程序的结构化设计方法，并给出了程序结构和部分程序。

Taking the Y-△ switching of the drag way of the escalator as an example, this paper analyzes the common function module of PLC control program, and discusses the structural design of PLC program and gives the program structure and program.