PLC自动药柜控制系统的设计.doc

目 录 摘要······························································2 Abstract················································3 1 概述 1·1 PLC 的概术············································4 1·2 PLC的结构和基本配置以及控制要点··························7 1·3 自动药柜的概述············································18 2 自动药柜控制系统的设计 2·1 控制要求···········································21 2·2 PLC选择·············································21 2·3 继电器型号选择········································· 25 2·4 稳压电源···········································26 2·5 I/O地址分配表·······································27 2·6 程序说明···········································28 3 PLC与计算机通讯 3·1 PLC通讯概述········································31 3·2 PLC与计算机的硬件连接································33 3·3 通讯程序的设计······································34 4 系统的调试 4·1 PLC控制系统的调试····································41 4·2 调试与维修工具········································42 4·3 基本检查············································44 4·4 设备基本状况检查·····································44 4·5 电气检查·············································45 4·6 调试的基本步骤·············································46 5 系统的功能评价及现实义····································48 本次设计的心得体会·············································49 致谢·························································50 参考文献·····················································51 摘要 论文针对基于PLC的自动药柜的控制系统作出设计 关键词：PLC 机电一体化 自动药柜 当今世界电子技术迅速发展在向微型化、网络化、化和开放性方向发展长期以来，始终处于工业控制自动化领域的主战场，为各种各样的自动化控制设备提供非常可靠的控制方案，与和工业形成了三足鼎立之势。 Abstract The essay is designed, focused on the control system which is based on automatic medicine cabinet of PLC KeyWord ： PLC mechaytonics medicine cabinet With the high development of electron technology， PLC is widely applied into the electromechanical equipment. The automatic systems in many fields can not run without the control of the PLC,due to the miniaturization, networking , PLCing and openly development of PLC. It is a