摘要随着科学技术的不断发展和用户需求的不断提高，PLC 不再局限于逻辑控制， 在运动控制、过程控制等领域也发挥着十分重要的作用。凭借高精度的运动控制 优势，伺服系统广泛应用于火炮的控制、自动机床等高精度领域。本文通过开发 写字程序来研究和应用三菱 PLC 和伺服系统。84427
在查阅大量资料的基础上，本文设计了系统的硬件构架，定义了输入输出端 口。系统硬件构架包含二自由度十字滑台、FX3u·FX3uc 系列 PLC、伺服电机以 及伺服控制器等。在三菱 FX3u·FX3uc 系列 PLC 的介绍中，阐述了三个重要的定 位指令，以及指出了与 FX2N 系列 PLC 在特殊辅助继电器和特殊数字寄存器的区 别。
根据预期要求实现的功能，本文设计了机械原点回归，手动调试、流程控制 和报警等 PLC 程序。在此基础上，本文设计了以“江科大”为内容的自动写字程 序。它以绝对定位指令为核心，实现了对二自由度十字滑台的点位控制。
在对 PLC 的不断熟悉和研究中，本文开发了新的算法，用相对定位指令搭建 运动轨迹来实现灵活调整字体的大小，用绝对定位指令来调整起始位置以及顺序 控制实现字库的调用。最后，本文加入了人机界面，实现了实时修改操作。
毕业论文关键字：FX3u·FX3uc 系列 PLC、伺服系统、定位坐标、运动控制
Abstract With the continuous improvement of science and technology and the development of user requirements,PLC is no longer confined to logic control, motion control, process control and other fields also play a very important role。With the advantages of high-precision motion control, servo control system is widely used, high-precision machine tools and other areas of automatic guns。Through the development of writing programs, this paper study and application of Mitsubishi PLC and servo systems。
After a review of large amounts of data, this paper designs the hardware system architecture defines the input and output ports。System hardware architecture comprises two degrees of freedom cross-slide, FX3U · FX3uc series PLC, servo motors and servo controllers。In the introduction of Mitsubishi FX3U · FX3uc series PLC , this paper describes three important positioning instructions, as well as point out the difference between FX2N series PLC in special auxiliary digital relays and special registers。
Depending on the intended functionality required to achieve,this paper design mechanical OPR, manual debugging, process control and alarms PLC program。On this basis, we design a "江科大" automatic writing for the content of the program。 It
is an absolute positioning command as the core, to achieve the two degree of freedom of cross-slide position control。
In the PLC increased familiarity and research, we developed a new algorithm, using relative positioning command structures trajectory to achieve the flexibility to adjust the font size, using absolute positioning commands to adjust the starting position and sequence control to achieve font called。Finally, we added a man-machine interface, achieve real-time modifications。
Keywords：FX3u·FX3uc Series PLC；Server System；Location Coordinates；Sport Control
目录
第一章 绪论 1
1。1 研究背景与实际意义 1
1。3 伺服系统在国内外研究现状及存在的问题 2
1。4 PLC二维画笔装置程序设计+源程序:http://www.youerw.com/zidonghua/lunwen_100140.html