目 录

第1章 引言 ··························································1 1.1 可编程控制器的简单介绍············································1 1.2 西门子S7-200 的简单介绍·········································· 4

1.3 C650卧式车床简述·················································5

第2章 继电接触器控制系统设计 ······································7

2.1 C650卧式车床的控制要求···········································7

2.2 电气控制线路分析···················································7

2.3 C650卧式车床电气控制线路的特点····································9

第3章 C65O普通车床的PLC 设计过程································10

3.1 控制要求··························································10

3.2 方案说明··························································10

3.3 确定I/O信号数量，选择PLC的类型··································10

3.4 C650普通车床PLC控制系统I/O地址分配表···························11

3.5 控制电路设计······················································11

3.6 PLC控制程序设计··················································13

3.7 C650普通车床控制系统PLC控制程序语句表····························15

3.8 系统调试··························································18 结论····································································19 设计总结·······························································20 谢辞····································································21 参考文献·······························································22