六路抢答器系统设计与调试.docVIP

目 录 摘要： 1 ABSTRACT 2 1任务与要求 3 1.1课题概述 3 1.2设计内容与要求 3 2 PLC可编程序控制器 5 2.1 PLC介绍 5 2.2 硬件的组成 6 2.3 PLC控制系统的发展趋势 10 3 抢答器控制系统方案选择与设计 12 3.1 整体功能介绍 12 3.2 竞赛抢答器控制要求 12 4 抢答器硬件电路设计 13 4.1抢答器实物对象的设计 13 4.1.1 MCGS的简介 13 4.1.2 设计实物界面 13 4.2 硬件电路设计 14 4.2.1 控制特点分析 14 4.2.2 外部接线图 15 5 抢答器软件设计 16 5.1 I/O地址分配 16 5.2 结构流程图 17 5.3 梯形图设计与分析 18 5.3.1 显示抢答号码梯形图 18 6 程序调试及分析 26 6.1 程序运行过程分析说明 26 6.2 调试结果 26 总 结 27 参考文献 28 附录 29 六路抢答器系统设计与调试 摘要：随着我国经济和文化实业的发展，在很多公开竞争场合要求有公正的竞争裁决，诸如证券、股票交易及各种智力竞赛等，因此出现了抢答器。最初的抢答器是由优先权编码器构成的逻辑电路，其运算速度慢，线路复杂，可靠性不高，功能也比较简单，特别是当抢答路数很多时，实现起来就更加困难。因此，一种能够体现竞赛的公开、公平、公正性的知识竞赛抢答器成为一种需求。 本设计将以PLC为核心设计了系统结构图、程序指令、梯形图以及输入输出端子的分配方案，在保留了原始抢答器的基本功能的同时又增加一系列的实用功能并简化其电路结构，其将以其控制方便，灵活，只要改变输入PLC的控制程序，便可改变竞赛抢答器的抢答方案，从而使得竞赛不断完善其公平、公正性。 关键词：PLC控制系统；竞赛抢答器；七段译码器 The designing and debugging of six-way responder system ABSTRACT With the development of Chinas economic and cultural Industry ,fair competition ruling, such as securities, stock exchange and various quiz are being required in many public arenas. It results in a responder system. The initial answer is a logic circuit constituted by the priority encoder, its operation is slow, complex line, reliability is not high, the function is relatively simple, especially when a lot of large ones answer, the more difficult to implement. Thus, one can reflect competition openness, fairness, impartiality Responder knowledge contest has become a requirement. The design will be PLC as the core design of the system structure diagram, instructions, ladder and allocation of input and output terminals, while retaining the basic functionality of the original Responder at the same time increasing the number of useful features and simplify the circuit structure, it will be its control convenient, flexible, just change the input PLC control program, you can change the contest Responder Responder scheme, so that the competition continues to improve its fairness and impartiality. KEY WORDS: The PLC Controls System, Conte