西门子S7-300 PLC基础与应用 第3版

定　　价：49 元

丛书名：高等职业教育系列教材

• 作者：主编 吴丽 副主编 邱全富
• 出版时间：2020/8/1
• ISBN：9787111655862
• 出 版 社：机械工业出版社

• 中图法分类：TM571.61 
• 页码：228
• 开本：16开

内容简介

本书以工程实际应用和便于教学使用为出发点，以西门子 S7-300系列 PLC为蓝本，主要介绍可编程序控制器的工作原理、指令系统、程序结构、编程软件使用、编程规则与技巧、控制系统设计与应用技术等内容。
本书力求语言简捷、通俗易懂、实用性强、理论联系实际，通过大量工程案例介绍 PLC的设计方法。本书作为新形态教材，关键知识点处配有二维码扫描视频，且每章都有相关技能训练，以突出对实践技能和应用能力的培养。
本书适合作为电气自动化、楼宇智能化、机电一体化、机械设计与制造及其相关专业 “PLC基础与应用”课程的教学用书，也可作为电气技术人员的参考书和培训教材。

目 录

第 1章 PLC的基本知识············································· 1
1.1 PLC概述 ········································ 1
1.1.1 PLC的产生和定义 ································· 1
1.1.2 PLC的结构组成 ···································· 1
1.1.3 PLC的基本原理 ················ 3
1.1.4 PLC的编程语言 ··································· 5
1.1.5 PLC的应用和发展 ································· 7
1.2 S7-300 PLC概述 ········································ 8
1.2.1 西门子 PLC系列产品 ···························· 8
1.2.2 S7-300 PLC的硬件组成 ··· 11
1.2.3 CPU的操作模式 ································· 13
1.2.4 S7-300 PLC的工作过程 ················································· 14
1.2.5 S7-300 PLC的模块安装 ················································· 16
1.2.6 S7-300 PLC数字量信号模块的地址分配 ···································· 19
1.3习题 ························································· 20 第 2 章 STEP 7编程软件 ····································· 21
2.1 STEP 7软件安装 ······································ 21
2.1.1 安装需求 ············································ 21
2.1.2 安装 STEP 7软件包 ··· 21
2.1.3 STEP 7的授权管理 ··· 23
2.2 SIMATIC管理器 ··········· 24
2.2.1 SIMATIC管理器概述 ·· 24
2.2.2 STEP 7项目结构 ······· 25
2.2.3 SIMATIC Manager自定义选项设置 ················ 25
2.2.4 PG/PC接口设置 ········ 27
2.3 技能训练电动机起 /停控制 ·················· 28
2.3.1 用继电器-接触器控制三相交流异步电动机起 /停 · 28
2.3.2 用 PLC控制三相交流异步电动机起 /停 ······· 29
2.3.3 PLC系统的硬件组态及程序编制 ········· 31
2.3.4 方案调试 ··········· 40
2.4 PLC控制系统与其他控制系统的区别 ·· 42
2.4.1 PLC控制与继电器-接触器控制的区别 ···· 42 2.4.2 仿真 PLC与实际 PLC的区别 ··········· 43
2.4.3 PLC系统的设计步骤 ················ 44
2.4.4 PLC设计项目的下载 ················ 44
2.4.5 TIA博途 ········ 45
2.5 习题······················· 45 第 3 章 基本逻辑指令的应用 ································· 47
3.1指令基础 ·············································· 47
3.1.1 指令的基本知识 ··························· 47
3.1.2 寻址方式和累加器 ···························· 50
3.2 触点与线圈 ············ 52
3.3 基本逻辑指令 ····························· 53
3.3.1 逻辑“与”指令 ··························· 53
3.3.2 逻辑“或”指令 ············· 54
3.3.3 逻辑“异或”指令 ························· 54
3.3.4 逻辑块的操作 ······································· 55
3.3.5 信号流取反指令 ······································· 56
3.4 边沿检测指令 ·············································· 56
3.4.1 RLO的上升沿检测指令 ········································ 56
3.4.2 RLO的下降沿检测指令 ···················································· 57
3.4.3 触点信号的上升沿检测指令 ··········································· 58
3.4.4 触点信号的下降沿检测指令 ············································ 59
3.5 技能训练电动机的基本控制 ·················································· 60
3.5.1 PLC控制系统的硬件设计 ············································· 60
3.5.2 PLC控制系统的软件设计 ·········································· 61
3.5.3 方案调试 ··························································· 66
3.6习题 ········································································· 67 第 4 章 定时器的应用 ···························· ··································· 68
4.1定时器 ····························· ····················· 68
4.1.1 定时器指令 ····························· ························· 68
4.1.2 CPU的时钟存储器 ······························· ··········· 76
4.2技能训练人行横道控制 ······················· ········ 77
4.2.1 控制要求 ······························ ··············· 77
4.2.2 任务实施 ·································· ············ 78
4.2.3 方案调试 ····························· ······················· 82
4.3编程注意事项 ······························· ······················ 85
4.3.1 常闭输入触点的处理 ·········· ················· 85
4.3.2 热继电器 FR与 PLC的连接 ·············· ········ 85
4.3.3 定时器的扩展 ·········· ················· 86
4.3.4 编程规则 ·································· 87
4.4习题 ···································· 87 第 5 章 置位与复位指令的应用 ··················································· 89
5.1 置位与复位 ········································································ 89
5.1.1 置位与复位指令 ··························································· 89
5.1.2 RS触发器指令与 SR触发器指令 ·························· 90
5.2 STEP 7的用户程序结构 ············································ 92
5.2.1 STEP 7的程序块 ···················································· 92
5.2.2 STEP 7的用户程序结构和调用 ·································· 94
5.3 技能训练 1 抢答器的控制 ······································ 96
5.3.1 控制要求 ······································································ 96
5.3.2 任务分析 ·············································· 96
5.3.3 任务实施 ··············································································· 96
5.4 技能训练 2 多级传送带的控制 ······························································ 99
5.4.1 控制要求 ···························································· 99
5.4.2 任务分析 ········································································ 100
5.4.3 任务实施 ··········································································· 101
5.4.4 方案调试 ······································· 106
5.5 习题 ··························································································· 108 第 6 章 计数器的应用························································110
6.1 计数器指令 ···············································································110
6.1.1 加/减计数器（ S_CUD）·······························································110
6.1.2 加计数器（ S_CU） ····································································112
6.1.3 减计数器（ S_CD） ·····························································112
6.1.4 线圈形式的计数器·································································113
6.2 数据传送指令 ·····································································114
6.3 比较指令 ·······················································································115
6.3.1 整数比较指令 ················································································· 115
6.3.2 双整数比较指令 ··········································································116
6.3.3 实数比较指令 ·································································· 117
6.4移位指令 ···········································································118
6.4 .1 基本移位指令 ···························································· 118
6.4.2 循环移位指令 ·········································································· 119
6.5 技能训练多台电动机单个按钮的控制 ··································································· 120
6.5.1 控制要求 ········································································ 120
6.5.2 任务分析 ········································································· 120
6.5.3 任务实施 ·········································································· 120
6.6 计数器的扩展 ······································································· 123
6.6.1 计数器与定时器配合使用 ························································································ 123
6.6.2 计数器的加法和乘法扩展 ························································································ 124
6.7习题 ····················································································· 126 第 7 章 功能指令 ················································································· 128
7.1 数据装入、传输和转换指令 ······················································································· 128
7.1.1 数据装入指令和传输指令 ························································································ 128
7.1.2 转换指令 ······························ ········································ 132
7.2 算术运算指令 ·································································································· 135 7.2.1 基本算术运算指令······················································································ 136
7.2.2 扩展算术运算指令 ····························································································· 137
7.3 字逻辑运算指令 ·································································································· 138
7.4 技能训练 1 功能指令的应用 ················································································ 139
7.4.1 转换指令的应用 ······························································································ 139
7.4.2 求补指令的应用 ······························································································ 139
7.4.3 运算指令的应用 ······························································································ 140
7.4.4 移位指令的应用 ······························································································ 141
7.4.5 循环指令的应用 ····························································································· 141
7.5 技能训练 2 节日彩灯的控制 ···················································································· 142
7.5.1 控制要求 ······························································································· 142
7.5.2 任务分析 ······························································································· 142
7.5.3 任务实施 ······························································································· 142
7.5.4 方案调试 ······························································································· 144
7.6 习题 ······································································································ 146 第 8 章 模拟量的控制 ··························································································· 148
8.1 模拟量的处理 ································································································ 148
8.1.1 模拟量输入通道的量程调节 ···················································································· 148
8.1.2 模拟量模块的系统默认地址 ···················································································· 149
8.1.3 模拟量转换值的分辨率 ··················································································· 149
8.1.4 模拟量的数据表达方式 ················································································· 150
8.1.5 模拟量的规范化读入 ····················································································· 151
8.1.6 模拟量的规范化输出 ······················································································ 152
8.2 技能训练搅拌器的控制 ······················································································ 153
8.2.1 控制要求 ···································································································· 153
8.2.2 任务分析 ··································································································· 154
8.2.3 任务实施 ··································································································· 154
8.2.4 方案调试 ···································································································· 162
8.3 习题 ······································································································ 164 第 9 章 顺序控制系统控制方法的设计 ···················································································· 166
9.1顺序控制系统 ····································································································· 166
9.1.1 顺序控制 ······························································································ 166
9.1.2 顺序控制系统的结构 ·············································································· 167 9.2 顺序功能图 ·································································································· 168
9.2.1 顺序功能图的结构 ······················································································ 168
9.2.2 顺序功能图的类型 ····················································································· 169
9.3 顺序功能图的梯形图编程方法 ··················································································· 170
9.3.1 简单流程的编程 ··························································································· 170
9.3.2 选择分支流程的编程 ·················································································· 171
9.3.3 并进分支流程的编程 ··················································································· 172
9.4 S7 GRAPH语言 ······························································································ 174
9.4.1 认识 S7 GRAPH的语言环境 ···················································································· 174
9.4.2 步与步的动作命令 ························································································· 177
9.4.3 在主程序中调用 S7 GRAPH功能块 ·········································································· 181
9.5 技能训练洗车的控制 ·························································································· 185
9.5.1 控制要求 ·················································································· 185
9.5.2 任务分析 ································································································· 185
9.5.3 任务实施 ································································································ 186
9.5.4 方案调试 ···································································································· 191
9.6习题 ········································································································ 192 第 10 章 PLC通信 ································································································· 193
10.1 西门子 PLC网络 ···························································································· 193
10.2 PROFIBUS总线技术 ··························································································· 194
10.2.1 PROFIBUS 协议结构 ····················································································· 194
10.2.2 PROFIBUS 拓扑结构 ··············································································· 194
10.2.3 PROFIBUS的组成 ···················································································· 195
10.2.4 PROBUS DP网络连接 ················································································ 196
10.2.5 PROFIBUS DP设备分类 ·············································································· 197
10.2.6 PROFIBUS DP的 DX通信 ············································································ 198
10.3 工业以太网 ····························································································· 205
10.3.1 工业以太网的 TCP/IP ··············································································· 205
10.3.2 工业以太网的拓扑结构 ··············································································· 206
10.3.3 工业以太网的网络连接 ··············································································· 208
10.3.4 CPU 31x-2PN/DP之间的工业以太网通信 ······························································· 209
10.4 习题