零基础自学PLC入门.pdf

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1、第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、..................................................................................................-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........

3、......................................................-5-2.1点动电路...........................................................................................................................-5-2.2带停止的自动保持电路................................................................

4、..................................-6-2.3自保持互锁电路.............................................................................................................-7-2.4先动作优先电路..................................................................................................

5、...........-8-2.5后动作优先电路.............................................................................................................-9-2.6时间继电器...................................................................................................................-10-2.7计

6、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...

7、........................................................................................-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..........................................

8、.................-23-4.1创建工程文件.....................................................................................................