沈阳化工大学 PLC实训 两种液体混合控制装置 班级 科电气 0801 姓名 同组人 2011/12 PLC实训 第 2 页 目录 第一章 前言………………………………………………………………………………………………………...3 1 .1 课程设计的目的 ................................................................................................................................................. 3 1 .2 设计内容及要实现的目标 ................................................................................................................................ 3 第二章 系统总体方案设计.......................................................................................................................................4 2 .1 系统硬件配置及组成原理 ................................................................................................................................ 4 2.2 系统接线图设计 ............................................................................................................................................... 6 第三章 控制系统设计...............................................................................................................................................6 3 .1 估算. ................................................................................................................................................................... 6 3 .2 硬件电路设计 ..................................................................................................................................................... 6 3 .2 .1 液位传感器的选择 .......................................................................................................................................... 6 3 .2 .2 搅拌电机的选择 ............................................................................................................................................. 7 3 .2 .3 电磁阀的选择 .................................................................
