基于ab-plc控制的多路温度控制系统设计
毕业论文关键词：温度控制，多路选择，可编程逻辑控制器，传感器，
Realization of PLC multi-channel temperature control system based on AB-PLC
目 录
摘要 1
ABSTRACT 2
绪论 3
第一章 前 言 4
1.1论文研究的背景及目的 4
1.1.1论文研究的背景 4
1.2.1论文研究的目的 4
1.2课题研究的范围 4
1.2.1 可编程逻辑控制器(PLC)[1] 4
1.2.2美国罗克韦尔ab-plc中的ControlLogix系列 8
1.2.3热电偶温度变送器 9
1.3基于PLC自动控制在国内外发展概况与未来展望 10
第二章 课题设计说明 11
2.1问题的提出 11
2.2实验方案拟定 11
2.2.1 人机界面总体框架 11
2.2.2 温度控制方式 11
2.2.3 PLC控制技术 12
第三章 设计主要内容 13
3.1实验内容准备及其初始化设定 13
3.1.1 RSLogix5000编程环境 13
3.1.2 串口组态与协议 13
3.1.3 SFC执行 16
3.1.4 温湿度传感器的选型 17
3.2 PID控制 17
3.2.1 典型PID设计理论 17
3.3 程序设计 18
3.3.1 主程序 19
3.3.2 元件注释表 27
3.3.3 软元件使用次数表 28
3.3.4 PID程序块设计 31
3.4 RSlinx通讯 35
3.4.1利用RSLogix Emulator 5000仿真机架 35
3.4.2 RSLinx设置 37
3.5 RSView32 39
3.5.1 RSview32简介 39
3.5.2 多路温度监控画面 39
第四章 结论 41
致 谢 42
参考文献 43
基于ab-plc控制的多路温度控制系统设计
ABSTRACT
In today's rapidly developing industrial control now, people use programmable logic controllers have been more mature. Because of its powerful functions and facilitate effective control, programmable logic controllers in industrial control has been widely used. Temperature control in a wide range of industrial use, especially in the constitution heating control, mold manufacturing, product testing, and the temperature of the device is particularly prominent.This paper introduces a control system which has the property of cost-effective multi-channel temperature detection. Using a / d Module participate analog signal according to the temperature; converted into a digital signal processing to send plc. Display temperature and humidity. Using a keyboard or touch screen to set parameters. According to process requirements to control the temperature.The system is based on ControlNet protocol , taking ab-plc as master station and rtd type thermal resistance input components as slave station under the master-slave mode for real time temperature data transmission ,to achieve the heating system’s temperature control and data display. The paper shows the realization of system’s software and hardware.