本书在结构形式上采用任务驱动式的教学方法，每个任务的内容基本由“任务目标”、“工作任务”、“任务实施”、“任务评价”、“知识点”、“任务拓展”、“知识测评”等模块组成，既保证了理论知识的层次性、系统性，同时还把理论知识和技能训练有机的结合在一起，真正做到“边学、边做、边教”的一体化教学理念。全书共分为五个项目，即PLC基础、基本逻辑指令及其应用、进顺控指令及其应用、功能指令认识及其应用和PLC与变频器应用，通过紧密结合学校现有实训设备，突出培养和训练学习者的学习能力、操作能力、应用拓展能力和岗位工作能力。
目 录
项目一PLC基础···························································································· 1
任务一PLC概述···························································································· 1
任务二PLC的结构原理················································································· 15
任务三FX系列PLC的软元件认识································································· 24
任务四FX系列PLC编程软件认识及应用························································ 34
项目二PLC基本逻辑指令及其应用································································ 52
任务一基本逻辑指令认识·············································································· 52
任务二常用基本电路的程序设计···································································· 63
任务三三相异步电动机的正、反转PLC控制··················································· 70
任务四天塔之光的PLC控制（一）································································ 78
任务五*答器的PLC控制············································································· 87
项目三步进顺控指令及其应用······································································· 95
任务一步进顺控编程介绍·············································································· 95
任务二气动机械手搬料的PLC控制······························································ 106
任务三物料传送及分拣的PLC控制······························································ 121
任务四自动交通灯的PLC控制（一）··························································· 135
项目四功能指令及其应用············································································ 144
任务一功能指令介绍·················································································· 144
任务二天塔之光的PLC控制（二）······························································ 160
任务三自动交通灯的PLC控制（二）··························································· 168
任务四自动售货机的PLC控制···································································· 178
项目五PLC与变频器综合应用····································································· 187
任务一E700变频器的基本认识···································································· 187
任务二变频器正、反转控制········································································· 199
任务三三相异步电动机多段速控制······························································· 216
任务四PLC与变频器在物料搬运、传送及分拣中的综合控制··························· 224
附录········································································································· 244
附录一FX2N系列PLC基本指令一览表························································ 244
附录二三菱FX2N系列PLC功能指令一览表················································· 247
附录三三菱E700系列变频器参数表····························································· 253
附录四三菱E700系列变频器保护功能表······················································ 263
参考文献······································································································ 266
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