非常实用的PLC入门教程- 0 -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 -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..............................
