1 本科生毕业设计说明说( 毕业论文) 题目: 太阳能锅炉测控仪的设计 2I I 太阳能锅炉测控仪的设计摘要本文旨在设计一种基于 PLC 的太阳能锅炉热水的测控系统?PLC 技术广泛应用于各种自动化领域, 本设计采用西门子 PLC S7-200 CPU226 挂载 EM231 模拟量扩展模块和 EM22 2 数字量扩展模块加上LED 显示屏?传感器?控制面板等组成太阳能锅炉的测控系统, 能为太阳能锅炉的控制监测系统提供安全可靠的保障?本设计有两重要部分: 第一部分: 太阳能锅炉测控系统的硬件设计; 包括 PLC ?扩展模块?传感器等器件的选型以及 PLC 的接线?LED 屏?控制面板的设计等?第二部分: 太阳能锅炉测控系统的软件设计; 包括系统的控制思路和手动控制程序?上水程序?温差循环程序?锅炉辅助加热程序?防冻程序?报警程序等程序流程图?关键词: 太阳能锅炉;PLC S7-200; 测控仪 II II Design Of Solar Energy Boiler Control Instrument Abstract This article aims to design a control system of solar hot water boiler based onPLC. Automation inthe field ofPLC technology is widely used in industry, measure and control system ofthe design adopts Siemens PLC S7-200 CPU226 mount EM231 analog expansion module and EM222 digital quantity expansion module and LED display, sensor, control panel solar boiler, control and monitoring system for solar energy boiler to provide safe and reliable guarantee. This article has two important parts: The first part: the hardware design of solar energy boiler control system; including the selection and PLC ,expansion module, sensor devices such aswiring, LED screen, control panel design. The second part: the software design of solar energy boiler control system; including the control idea and manual control program, system program, Sheung Shui temperature cycle program, boiler auxiliary heating program, antifreeze procedure, alarm program flow chart ofthe program. Keywords: Solar energy boiler;PLC S7-200;Measurement and control instrument III III 目录摘要............................................................................................................................................. I Abstract ................................................................................................................................... II 第一章引言............................................................................................................................... 1 研究背景: ..................................................
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