基于PLC的发电机检测控制系统设计.pdfVIP

基于 PLC的发电机检测控制系统设计 摘要 本系统设计的发电机检测控制系统主要由可编程控制器、 探测器、执行机构等组成。 可编程控制器作为控制系统的大脑，按照工艺说明分析，对各种外部输入信号按照发电 机检测系统的工艺分析结果及程序设计流程，完成系统各项工艺功能的实现，通过仿真 将当前的状态进行显示和参数设定等控制。按照方案的选择和设备型号的选择，采用的 可编程控制器为西门子 S7-300 CPU313C，模拟量扩展模块为 EM331。确定该系统设计的 工艺控制方案，完成系统硬件部分的型号选择计算以及总体控制方案的设计。在此基础 上进行硬件分析和图纸设计，完成工艺流程图的设计以及程序的编写，通过程序仿真设 计调试和修改，系统安全可靠、使用灵活、扩展性强、开发周期短，后期修改方便，达 到本设计的工艺要求，以及为后期系统升级改造创造条件。 关键词：发电机检测；可编程控制器；仿真设计 Abstract The generator detection and control system designed by this system is mainly composed of programmable controller, detector, actuator and so on. As the brain of the control system, the programmable controller completes the realization of the process functions of the system according to the process analysis results and the programming process of the generator detection system. The current state is displayed and the parametersare set by simulation. According to the choice of scheme and equipment type, the programmable controller is Siemens S7-300 CPU313C and the analog expansion module is EM331. Determine the process control scheme of the system design, complete the model selection calculation of the hardware part of the system and the design of the overall control scheme. On this basis, hardware analysis and drawing design are carried out, process flow chart design and programming are completed. Through program simulation design debugging and modification, the system is safe and reliable, flexible in use, strong in expansibility, short in development cycle, convenient in later modification, which meets the process requirements of this design, and creates conditions for later system upgrade and transformation. Key words: generator detection; programmable controller; simulation design 目录 摘要 .