毕业设计（论文）-基于西门子PLC S7-200的自动化电镀生产线控制.doc

摘要
本文讨论了如何利用德国西门子PLC S7-200进行自动化电镀生产线控制,在本次设计中,我们从自动控制技术器件在国内的应用前景及电镀生产线生产现场的环境来考虑,以使该生产线真正具备自动生产运行为目的,从而采用在当前及以后都应用广泛且能适应多种环境的可编程控制器来控制整个工作流程的方案。重点分析了系统软硬件设计部分,并给出了系统硬件接线图、PLC控制I/O端口分配表以及整体程序流程图等,实现了电镀生产自动化,提高了生产效率,降低了劳动强度,大大提高了工作人员的工作环境质量。为适应现代传统的工业控制系统,还采用了基于组态王软件的系统作为上位机,配合下位机PLC完成了该系统的实时监控系统功能,更好的使该自动生产系统融入到现代工业控制领域中。利用可编程序控制器对某电镀行车的工作过程进行控制的方法,简化了控制系统的接线,克服了电磁继电器动作时间长、触点抖动的缺点,提高了系统的可靠性和灵活性。利用PLC实现对电镀生产线的系统控制,使系统具有很强的适应能力,可方便完成自动,手动拉制和相互之间的切换;整个程序采用结构化的设计方法,具有调试方便,维护简单,移植性好的优点。
关键词:PLC,电镀,组态王,可编程控制器

ABSTRACT
This article discussed how carried on the automated galvanization production line control using German Siemens PLC S7-200. In this design, we take consider of the automatic control ponent in the domestic application prospect and the environment of the galvanization production line, and this makes this production line truly to have the automatic production movement as the goal. We formulate a plan that uses a programmable controller which can adapt many kinds of environment in current and later to control the entire work. We analyzed the system software and hardware design with emphasis, and provide the system hardware wiring diagram, PLC I/O port distribution list and the overall program flow diagram and so on. This design realized the galvanization production automation, enhanced the product efficiency, and reduced the labor intensity. In order to adapt the modern tradition industry control system, we also used the King View software system which had taken on as the position machine. And coordinate PLC as lower position machine. All this has made this system had the function of current time monitoring. That caused this automatic production system integrate to the modern industry control system better. This paper presents a controlling system which controls the special traveling crane for electroplating. This system really helps improve the reliability and laity of the controlling system. And this paper introduces the application of Rockwell PLC in t