基于ARM-Linux的可编程自动化控制器的设计

Design of Programmable Automation Controller Based on ARM and Linux

在理解PAC系统的功能、组成和编程方法基础上,从整体上介绍了一种PAC的实现方案。首先对PAC总体结构作了简要介绍,然后主要对运行系统的整体构架的设计做了详细研究,包括软件及硬件系统的设计。运行系统的硬件平台是基于ARM的嵌入式控制器,软件方面使用linux作为操作系统,Qt作为界面,并支持Sqlite数据库。最后对软PLC系统的性能进行分析,分析结果表明:系统具备了良好的扩展性和移植性,达到了工业领域中的控制要求。

Based on the understanding of the PAC＇s function and programming method,a kind of PAC prototype is discussed in detail.The main structure is introduced first,and later the operation system is deduced thoroughly,both in hardware and software.Its hardware platform is based on a ARM board,while its software is based on linux as OS,Qt as HMI and Sqlite as database.Finally,analysis indicates that this PAC is of great scalability and portability,and can meet the industry requirements sufficiently.