基于plc的电镀生产线控制系统设计大学生毕业论文（设计）.doc

毕业设计论文 基于PLC的电镀生产线控制系统设计 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。 关键词：PLC，电镀，组态王 Design of Galvanization Production Line Control System Based on PLC 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 technology component 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. KEY WORDS: PLC, Galvanization, King View 目　录 前　言 1 第1章 绪论 2 1.1 控制系统概述与选题背景意义 2 1.1.1 控制系统的概述 2 1.1.2 课题的选题背景及意义 2 1.2 控制对象的设计要求 3 1.3 PLC系统组成 4 1.3.1 CPU 4 1.3.2 存储器 4 1.3.3 输入/输出接口电路 4 1.4 PLC的基本工作原理 5 1.5 小结 5 第2章 系统的硬件设计 6 2.1 主电路设计 6 2.2 PLC机型选择 7 2.3 I/O分配表及其端子接线图 7 2.3.1 I/O地址分配 7 2.3.2 PLC外部接线图 8 2.4 小结 9 第3章