软PLC逻辑控制元件图形化分析与实现  

Analysis and Implement Graphical of Soft PLC Logical Control Elements

作　　者：代征宇[1] 杨观赐[1] 李少波[1] 

机构地区：[1]贵州大学教育部现代制造技术重点实验室,贵阳550003

出　　处：《组合机床与自动化加工技术》2012年第10期74-76,共3页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：贵阳市科技局科技计划项目(筑科合同[2012101]2-7号);教育部新世纪优秀人才支持计划(NCET09-0094);国家科技支撑计划(2012BAF12B14)

摘　　要：基于大型中央空调实际运行过程中存在的能耗问题,将软PLC(Programmable Logic Controller,可编程逻辑控制器)应用于大型中央空调的节能控制系统中,针对不同的应用需求对硬件模块进行功能开发、软件管理及升级维护。基于Qt平台,针对该系统中的图形元件的创建以及功能实现进行研究,介绍了图形元件类设计、功能实现以及元件间的数据交互。从而实现系统运行的高效性与稳定性。通过实例应用,系统稳定可靠,能够很好的实现各功能模块功能。Based on the Energy problems of large central air conditioning in actual operation, Soft PLC is used in the saving energy control system of large central air conditioning to conduct the function development of hardware module, software management and upgrade maintenance in different applications. The main research is about creating the Graphic Symbol and realizing its functions based on QT platform. The paper introduces the component design, function of graphics implementation and the data interaction between components. So as to realize the efficiency and stability of the system operation. Through the ap- plication, the system is stable and reliable, and is better to realize the module function.

关 键 词：图形元件 梯形图 软PLC 

分 类 号：TP319[自动化与计算机技术—计算机软件与理论]