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论文编号:ZD1285 论文字数:13437,页数:44
摘 要
可编程序控制器是为工业控制应用而设计制造的专用计算机控制装置,是20世纪60年代发展起来的一种控制设备。PLC运行于工业控制的近40年中,对提高设备的运转率起到了重要作用。随着时间的推移,PLC已经不再局限于最初世纪的逻辑和顺序控制领域,越来越多的PLC产品向着满足更多更复杂的控制要求迈进。随着现场总线和工业以太网技术出现和推广,更加有力的促进了PLC产品在工业领域的广泛使用。如PLC在电厂锅炉控制系统中的应用,在带钢酸洗控制系统中的应用等等,本课题就主要针对PLC带钢酸洗控制系统中的应用设计,使工厂减少劳动强度,维护更加方便,可靠性和投运率不断提高。这样将会给工厂带来更好的经济效益。
关键词 可编程控制器,带钢酸洗,rslogix5000编程软件
ABSTRACT
The programmable controller is designs the manufacture for the industrial control application the special purpose computer control device, is one kind of control device which the 1960s developed. The PLC movement in industrial control''s near 40 years, to raised equipment''s service factor to play the influential role. With the lapse of time, PLC already no longer limited to initial century logic and the sequential control domain, more and more PLC products turn toward satisfy the more complex control requests to make great strides forward. Appears along with the field bus and the industry ethernet technology and promotes, more powerful promotion PLC product in industrial field widespread use. Like PLC is also quite widespread in the power plant boiler control system''s application, like PLC in strip pickling control application and so on; This topic mainly aims at PLC in the strip pickling system''s application design, reduces the labor intensity, maintains is more convenient, the reliability and throws transporting rate to enhance unceasingly. This will bring a better economic efficiency to the industy.
Key words programmable controller, strip pickling, logix5000 Programs the software
目 录
摘 要 I
ABSTRACT II
1 绪论 1
1.1 序言 1
1.2 PLC的国内外发展 1
1.3 PLC的发展趋势 2
1.4罗克韦尔的特点 2
1.5 本课题研究意义 3
2 工艺流程 5
2.1 工艺简介 5
2.2工艺流程图 5
2.3工艺实现 6
2.4 温度的控制 7
2.4.1 检测元件的选择 7
2.4.2 PID调节 8
2.4.3 串级控制 9
2.4.4 酸洗中温度的串级控制 9
3 PLC硬件设计 11
3.1 PLC机型的选择 11
3.2 PLC的CPU选择 11
3.3 I/O模块的选择 12
3.4 电源模块的选择 13
3.5 背板模块的选择 14
4 PLC软件设计 15
4.1 Rslogix5000的特点 15
4.2 主要指令介绍 16
4.3 I/O分配表 18
4.4 程序框图设计 19
4.5 编写程序 20
结论 21
参考文献 22
附录:冷轧带刚酸洗的控制程序 23
致 谢 41