基于iec61131-3标准的plc系统研究与应用.pdf

中 文 摘 要

IEC61131-3 标准是第一个也是至今为止唯一的为工业自动化控制系统的控制软件
设计提供编程语言的国际标准[1]。这个标准将现代化软件的概念和现代软件工程的机制
与传统的 PLC 编程语言成功的结合，又对当代种类繁多的工业控制器中的编程概念及
编程语言进行了标准化。IEC61131-3 对可编程控制器软件技术的发展，乃至整个工业控
制软件的发展，起着举足轻重的推动作用。
IEC61131-3 标准编程语言分为公用元素和编程语言两部分。与传统的可编程控制语
言不同，在公共元素中，编程语言标准定义了配置、资源、任务和存取路径等概念。本
文采用德国 3S 公司开发的基于 IEC61131-3 标准的 PLC 软件--CodeSys 为平台，搭建 PLC
系统的编译环境和运行环境，应用于注塑机控制。主要完成工作如下：
1. 基于 IEC61131-3 标准分析 Codesys 软件的编译环境，分析总结 Codesys 的软件
模型。着重阐述软件模型中的配置、资源、任务和存取路径等概念。
2. 在 Codesys 软件平台的基础上，为目标系统添加设备组件，按照 IEC61131-3 标
准，编写设备组件的 XML 文件，并编写相应的驱动程序。
3. 运用 Socket 套接字技术完成 PLC 系统与人机界面、运动规划控制器（本文指
Simotion）之间的通信。初步实现三者之间动作信息的同步以及控制指令的准确运行。

关键词：: IEC61131-3标准；设备描述文件；Socket 套接字；
ABSTRACT

IEC61131-3 is an international standard of programming language which is
the first one and only one control system for industry automatic control system.
It not only successfully combines the concept of modernization software and the
mechanism of software engineering with the traditional programming language
of PLC, but also standardizes the concept of programming and programming
language in the modern wide range of industry controller. IEC61131-3 has
played a decisive role in the development of programmable controller software
technical, and the whole industry control software.
IEC61131-3 standard programming language has been divided into two
parts: public element and programming language. The standard programming
language has defined the basic concept of configuration, resources, tasks and
access path which is different from traditional programmable language control.
The compilation and movement environment of the PLC system are built based
on CodeSys platform which is PLC software based on standard IEC61131-3
developed by German 3S company and the following jobs are finished:
1 T