松下可编程控制器模拟仿真软件设计Design of Simu

本文介绍了以松下FP1 小型机系列PLC 为对象的模拟仿真软件的设计与实现，提出采用面向对象和多线程运行机制的系统实现方法。在单台电脑上，能模拟PLC 编程、实际运行和外部信号输入控制，并动态监视运行情况。编程环境使用C++ Builder，应用软件界面采用松下PLC 编程软件界面，并与windows界面相一致，方便用户操作，极大地方便了PLC 教学实验和PLC 的离线调试。对其它类似PLC 模拟系统的设计也具有参考价值。
关键词：松下PLC；模拟仿真；C++ Builder；多线程；面向对象

Abstract: software for simulation and emulation of Matsushita FP1 series PLC is developed.
Advanced a realization method of object oriented and multi-thread running. On single personal computer，simulating input-signal control and monitoring of programming, debugging， and running of PLC are realized. The programming environment is C++ Builder, and the interface of application software is compatible with Matsushita programming software and Microsoft windows. It is convenient to teaching, experiment and offline debug of the PLC. Besides, it has reference value to similar problems.
Key words：Matsushita PLC, Simulation, C++ Builder, multi-thread, object –orient