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1章 PLC周边常用器件介绍及简单应用..............................................................................-1-
1.1 按钮开关...........................................................................................................................-1-
1.2 继电器..............................................................................................................................-2-
1.3 三极管..............................................................................................................................-4-
第2章 常用继电器控制电路与相应PLC梯形图解说..............................................................-5-
2.1 点动电路...........................................................................................................................-5-
2.2 带停止的自动保持电路..................................................................................................-6-
2.3 自保持互锁电路.............................................................................................................-7-
2.4 先动作优先电路.............................................................................................................-8-
2.5 后动作优先电路.............................................................................................................-9-
2.6 时间继电器...................................................................................................................-10-
2.7 计数器.............................................................................................................................-12-
第3章 PLC编程相关软件安装....................................................................................................-13-
3.1 三菱PLC编程工具的安装...........................................................................................-14-
3.2 安装USB转串口芯片PL2303驱动..............................................................................-22-
第4章 三菱GXDeveloper8.31中文版编程软件的使用...........................................................-23-
4.1 创建工程文件.................................................................................................................-24-
4.2打开工程..........................................................................................................................-29-
4.3 计算机与PLC连接........................................................................................................-30-
4.4工程文件写入PLC..........................................................................................................-34-
4.5 计算机在线监视PLC...................................................................................................-36-
第5章 常用继电器控制电路转PLC程序编写测试..................................................................-37-
5.1 点动电路编写测试.........................................................................................................-38-
5.2 带停止的自保持电路编写测试......................................................................................-40-
5.3自保持互锁电路编写测试...............................................................................................-43-
5.4 先动作优先电路编写测试..............................................................................................-47

零基础自学PLC入门.pdf