摘要本设计介绍一种用PLC控制的作息时间控制系统，详细地阐述了系统组成、系统硬件接线和系统软件设计，并详细介绍了系统工作原理。校园作息时间控制系统主要用于学校，对一些以24小时为周期的开关量进行自动控制。如上下课打铃、教学楼照明的定时开与关、学生宿舍灯及校园路灯的定时开关控制等等。该控制系统是采用三菱FX2N系列的PLC且采用数码显示来实现对上述开关量的控制，该系统具有外设电路配置简单、扩展方便、操作容易、可靠性高、实用性强等特点，集电铃、宿舍灯、教室灯、音乐广播自动控制于一体，并具有周末与假期控制功能，实现了作息时间无人控制的自动化、科学化管理与操作。该控制系统可广泛用于学校、工厂和机关的自动打铃、电视、室内照明及其他对象控制，也可用于家庭或学生寝室进行时间指示及多点时间提醒。关键词:作息时间控制，PLC，校园，三菱FX2N---本文来源于网络，仅供参考，勿照抄，如有侵权请联系删除---目录摘要···········································································1第一章．校园作息时间控制系统··················································31.1校园作息时间控制系统的设计指导··········································31.2校园作息时间控制系统的控制要求··········································31.2.1校园作息时间控制系统的设计概述·······································41.2.2校园作息时间控制系统输入输出分配表···································51.2.3校园作息时间控制系统PLC外部接线图···································6第二章．PLC概述·······························································72.1PLC发展·································································72.2PLC的组成·······························································72.2.1中央处理器···························································72.2.2存储器·······························································72.2.3输入输出借口·························································8---本文来源于网络，仅供参考，勿照抄，如有侵权请联系删除---2.2.4电源模块·····························································92.2.5PLC系统的其他设备···················································92.3PLC的基本构成···························································92.3.1硬件系统·····························································92.3.2软件系统····························································112.4可编程控制器的工作原理···········································...