摘要

目录

摘要 (2)

引言 (4)

第一章、S7-200PLC的概述 (5)

1.1 S7-200系列PLC的概述........................................ .5

1.2 S7－200的物理结构 (5)

1.3 S7-200的硬件................................................ .7

1.4 S7－200的工作原理........................................... .8

1.5 S7－200的编程语言 (11)

第二章、组态软件.......................................................

2.1 组态的定义......................................................

2.2 力控组态的特点..................................................

2.3 力控设计步骤................................................... 第三章、触摸屏

3.1 触摸屏的基本知识

3.1.1电阻触摸屏

3.1.2电容技术触摸屏

3.1.3红外触摸屏

3.1.4表面声波触摸屏

3.2触摸屏软件

第四章、总体方案设计

4.1供热曲线

4.2总体方案

4.3锅炉有效控制方案

第五章、软件设计

5.1节能供暖系统编程指令表设计

5.1.1分析控制要求

5.1.2分配PLC的输入点和输出点

5.1.3程序编写

5.2上位机的组态软件设计

结束语

谢辞

摘要

区域供热节能控制系统分别对可编程序控制器、组态、和触摸屏做了详细的介绍和整个系统设计。用力控组态软件为上位机控制软件，下位机用的是西门子PLC226和PLC224，并绘出流程图，编写程序。节能供暖系统把锅炉、热力管网和用热设备三个部分看成一个总的热力系统来考虑，采用总体热力系统节能方式，按照用户的实际用热温度要求，进行热力系统整体调控。系统设置了室外和室内温度及所控制温度设计程序控制曲线，同时还对外网系统各支路调控设备进行智能化控制的功能，达到了按照不同用户的不同要求进行分温、分区、分时段智能调控外管网各楼宇温度的目的，还按照需要监控运行记录及系统故障等。下位机按照所设计的不同控制程序灵活方便地调节分控装置阀等控制阀门，同时我们充分利用温度传感器，以室外温度为准，按回水温度曲线严格控制各路回水温度，调节锅炉运行达到供暖安全运行的各项要求。

关键词：PLC，气候补偿，传感器，供热节能

Abstract

Energy-saving heating systems is right Programmable Logic Controller, configuration, and Touch-screen done a detailed presentation and the entire system design. Li Configuration Software design chosen as a PC control software Under the plan was using the Siemens PLC226 and PLC224 and produced a flow chart programming. Energy-saving heating system, boiler, heat pipe network and the use of thermal equipment as part of a three overall thermal system to be considered Overall use of energy-saving heating systems, in accordance with the actual users of thermal temperature requirements for thermal control system as a whole. Set the outdoor and indoor temperature and the temperature control process control design curve also external slip road network control system equipment for the intelligent control function, According to the different requirements of different users for hours, the temperature, regional, sub-slot intelligent network control outside the building's temperature, also need to monitor in accordance with the operating records and other system failures. Under the plan in accordance with the design of the different control procedures flexibility to adjust valve-control devices such as control valves, Meanwhile, we make full use of the temperature sensors, to outdoor temperature prevail. Backwater temperature curve by strict control of various backwater temperature and adjust heating boiler operation to achieve safe operation of the various requirements

Keywords:Programmable Logic Controller，Climate compensation ，sense organ，Energy efficiency