| 一种基于查表法的PLC交通信号控制系统新型编程方法 |
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| 引用本文： | 张浩宇,贾超. 一种基于查表法的PLC交通信号控制系统新型编程方法[J]. 工业控制计算机, 2008, 21(4): 58-59 |
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| 作者姓名： | 张浩宇 贾超 |
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| 作者单位： | 天津理工大学自动化学院,天津,300191 |
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| 摘 要： | 交通信号控制是典型的时间顺序控制,其传统基于继电器逻辑的PLC控制程序的显著缺点是逻辑关系较为复杂设计使在复杂情形时的交通控制信号程序不易设计.以罗克韦尔Micrologix 1500 PLC为例研究并设计了一种新型编程方法以解决这一问题.这个方法的核心是构建状态控制字表并通过查询该表实现交通信号的顺序控制.
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| 关 键 词： | PLC 交通信号控制系统 查表法 状态控制字 |
| 修稿时间： | 2007-09-30 |
A New Process of Program Traffic Signals Control System Based on Query Table Methods |
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| Abstract: | The Control of traffic signals is a typical time sequence control,which control program designed by PLC based on relay logic exists a visible disadvantage which is its complex logical relationship makes it a little hard to be designed in the ins and the outs.This paper takes A-B Micrologix 1500 PLC as example to study and design a new process of program design for traffic light control system based on the query table method to solve above problem.The core of the method is setting up a State Control Word Tab... |
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| Keywords: | PLC traffic signals control system query table method state control word |
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