基于组态的使用试验机温度监控系统_毕业设计论文初版.doc

毕业设计论文 基于组态的试验机温度监控系统设计 摘 要 试验机是工业装置，工业炉是依靠其它能源对工件进行加热，以达到对工件进行处理的标准。与其他相比，其温度方便控制，炉内情况易掌握，热效率高，实现生产过程的机械化和自动化。 随着自动化程度的迅速提高，用户对控制系统的过程监控要求越来越高，人机界面的出现正好满足了用户这一需求。人机界面可以对控制系统进行全面监控，包括过程监测、报警提示、数据记录等功能，从而使控制系统变得操作人性化、过程可视化，在自动控制领域的作用日益显著。 显然，系统正常运行还需要可编程控制器进行控制，可编程控制器是一种应用很广泛的自动控制装置，它将传统的继电器控制技术、计算机技术和通讯技术融为一体，具有控制能力强、操作灵活方便、可靠性高、适宜长期连续工作的特点，非常适合温度控制的要求[1]。 本文完成了基于亚控公司的组态王和西门子公司S7-200系列的可编程控制器的炉温控制系统的设计方案。利用组态软件组态王设计人机界面，实现控制系统的实时监控、数据的实时采样与处理。编程时调用了编程软件STEP 7 -Micro WIN中自带的PID控制模块，使得程序更为简洁，运行速度更为理想。实验证明，此系统具有快、准、稳等优点，在工业温度控制领域能够广泛应用。 关键词：温度控制，可编程控制器，人机界面，组态王 Based on the Configuration of the Tester Temperature Monitoring System Abstract The Testing machine is an industrial equipment, industrial furnaces is to rely on other energy heating the workpiece, the workpiece processing standards. Compared with other stoves, convenient to control the temperature, the furnace is easy to master, high thermal efficiency, realize the production process of mechanization and automation. In the industrial field, with the rapid increase in the degree of automation, it is more and more important to monitor the process of control system for the users. The emergence of human-machine interface meets the needs of users. Man-machine interface can comprehensively monitor the control system, including process monitoring, alarm, data logging and other functions, so that the control systems have become user-friendly operation, the process of visualization and it will play more and more important part in the field of automatic control. Programmable Logic Controller (PLC) is a kind of automatic control equipment which is widely used in the industrial manufacture. It merges the traditional control technology, computer and communication technologies with a strong ability to control, flexible operation, high reliability and suitable for long-term characteristics of continuous work. It is very suitable for temperature control requirements. This essay mainly introduces configuration softw