电热锅炉的控制系统设计plc.docVIP

摘 要 随着现代工业的逐步发展，PLC也得到了非常快速的发展，自上世纪八十年代到九十年代，PLC因为其编程简单、抗干扰能力强、可靠性高、适应面广、使用方便以及通用性强遭到了各种工业生产的青睐。特别是温度控制。温度是工业生产中一个非常重要的过程变量。这方面的应用是基于单片机PID控制,然而DDC系统的硬件和软件设计由单片机控制是复杂的,尤其是涉及到逻辑控制超过自己的长处,但公司在这方面的最佳选择是公认的。 我们知道，很多的PLC控制器的功能扩展大大的增多了PID控制的功能，一般在PID控制和逻辑控制的混合控制里边使用PLC控制，这样进行起来不仅是控制简单灵活、控制简单，还可以是被测的温度的技术指标更高，也就能大幅度的提高工业生产的数量以及质量。因此我们可以说PLC在顺序控制中的地位在将来是没有什么可以代替的这是本课程重点。 分别本篇论文主要对锅炉温度控制系统远离，温度传感器的选择，PLC和组态软件程序设计以及配置等等。来改造电热锅炉的控制系统来使系统具备控制精度好、稳定性好、系统响应速度快以及可靠性高这些特点。使其对工业生产的需求更具有可行性。 关键词：电热锅炉的控制系统 温度控制 顺序控制 PLC PID　 ABSTRACT With the gradual development of modern industry, PLC also got very fast development, since the 1980 s and ninety s, PLC programming because of its simple, strong anti-jamming capability, high reliability, adaptation of wide, easy to use and versatility by all kinds of industrial production. In particular, the temperature control. Temperature is a very important in industrial production process variables. This is based on single chip microcomputer application of PID control, however the DDC system controlled by single chip microcomputer hardware and software design is complicated, especially involving logic control over their strengths, but the company in this area is regarded as the best selection. In many of the PLC controller function extension to expand the function of PID control, generally in the hybrid control of PID control and logical control inside the use of PLC control, so that make up is not only simple and flexible control, simple control, also can be the technical index of the measured temperature is higher, can greatly improve the quality and quantity of industrial production. So the status of PLC in sequence control, is irreplaceable in the future. This is the purpose of this course. Respectively, this paper mainly discusses the boiler temperature control system is far from the choice of the temperature sensor, PLC and configuration software programming and configuration, and s