目录
1 绪论............................................................................................................................1
1.1 课题背景 .............................................................................................................1
1.2 国内外的发展现状 .............................................................................................2
1.3 节能控制系统 .....................................................................................................2
2 控制系统设计方案....................................................................................................3
2.1 PLC 介绍..............................................................................................................3
2.2 高压钠灯介绍 .....................................................................................................4
2.3 控制系统方案 .....................................................................................................5
2.3.1 方案论证.......................................................................................................5
2.3.2 设计方案.......................................................................................................5
2.3.3 结构框图.......................................................................................................6
3 硬件电路的设计........................................................................................................7
3.1 西门子 S7-200PLC 的介绍 ................................................................................7
3.2 亮度检测装置 .....................................................................................................8
3.3 时间调整电路 .....................................................................................................9
3.4 时间显示电路 .....................................................................................................9
3.5 电流检测电路 ...................................................................................................11
3.6 报警及指示电路 ...............................................................................................12
3.7 控制系统供电电路 ...........................................................................................13
4 软件部分的设计......................................................................................................13
4.1 STEP7-Micro/WIN32 编程软件介绍................................................................14
4.2 子程序 ...............................................................................................................15
5 总结..........................................................................................................................17
致谢..............................................................................................................................18
参考文献......................................................................................................................19
附录 1：.......................................................................................................................19
附录 2：.......................................................................................................................22
附录 3：总体电路图...................................................................................................23
附录 4：梯形图程序...................................................................................................24
