目录
摘要 .......................................................................................................................I
Abstract ................................................................................................................II
第 1 章 绪论 ........................................................................................................1
1.1 课题背景 ...................................................................................................1
1.1.1 PLC 产生 .............................................................................................1
1.1.2 PLC 的定义 .........................................................................................2
1.1.3 PLC 的特点 .........................................................................................3
1.2 国内烟草企业的特点与现状 ...................................................................4
1.2.1 PLC 在卷烟厂物流中的作用 .............................................................4
第 2 章 可编程控制器 PLC ................................................................................5
2.1 PLC 原理 ....................................................................................................5
2.2 PLC 的结构组成及工作方式 ....................................................................7
2.2.1 PLC 的结构组成 .................................................................................7
2.2.2 PLC 的工作方式 .................................................................................9
2.2.3 性能指标 ............................................................................................9
2.2.4 异同点 ..............................................................................................10
2.3 软件 PLC .................................................................................................10
2.4 PLC 的设计步骤 ......................................................................................11
2.5 PLC 现状 ..................................................................................................13
2.6 PLC 的发展阶段 ......................................................................................13
2.7 PLC 的发展趋势 ......................................................................................14
2.8 OMRON C200H PLC 在介绍..................................................................15
2.8.1 C200H PLC 的基本组成...................................................................15
2.8.2 C200H PLC 的特点...........................................................................15
2.8.3 C200H PLC 各组成部分的功能.......................................................16
2.8.4 C200H PLC 在存储单元...................................................................17
2.8.5 C200H PLC 的 I/O 接口单元及特殊功能单元 ...............................17
2.8.6 C200H PLC 存储区分配...................................................................17
第 3 章 卷烟厂物流自动化要求及说明 ..........................................................18
3.1 卷烟生产的物流系统 .............................................................................18
3.1.1 原料物流系统 ..................................................................................18
3.1.2 辅料物流 ..........................................................................................19
3.1.3 成品物流 ..........................................................................................19
3.2 卷烟厂物流输送系统的构成与分析 .....................................................19
3.3 控制系统硬件结构 .................................................................................20
3.4 卷烟厂物流控制的基本工作原理 .........................................................21