毕业设计（论文）-三聚氯氰生产PLC控制系统操作站程序开发.doc

摘要
三聚氯氰是一种重要的精细化工产品,具有广泛的用途,它是农药工业的中间体,是制造活性染料的原料,可做有机工业生产的各种助剂,如荧光增白剂、纺织物防缩水剂、表面活性剂等,是橡胶促进剂和国防用于制造炸药的原料之一,也是医药农药工业用于合成药物的原料。三聚氯氰用处繁多,但其生产是极其复杂的,又由于他的化学性质不稳定,液体状态容易外泄,生产过程中又会产生很多有毒气体,所以根本不适合人们亲自参与生产。建立三聚氯氰生产PLC控制系统是十分必须的。
三聚氯氰生产PLC控制系统使生产自动化,可使操作人员在办公室内看到生产流程的动态画面,从而更好的控制和调节生产。人机画面作为上位机,有监控和数据采集(SCADA)功能,而且有组态、开发和开放功能。可实现创建画面,通过画面中按钮来实现对系统的起、停、故障处理等控制,从而实现远程控制;变量组态,工业现场的生产状况将实时地反映在组态画面上,从而更好的调节生产;过程值归档,以趋势曲线和表格的方式显示被归档的历史数据;报表打印,可在运行期间输出过程数据。实现对三聚氯氰生产过程的可调节控制。
关键词: 人机画面;监控和数据采集;
Abstract
CNCL is a kind of important and fine chemical engineering product, have extensive use, it is the middle body of agrochemical industry, is the raw material which makes live dyestuff, can anic industry and produce of various help, if the fluorescence increases a white, spin and weave a thing and defend a shrinkage, surface a live etc. is one of the raw material that rubber accelerant and national defense used for making explosive, is also medicine agrochemical industry used for synthesizing medicine of raw material. CNCL's use to are of a great variety, but its production is very plicated, again because of his chemistry property unsteady, the liquid appearance leaks easily, in the production line again produce much poisonous air, so is basically unsuitable for people to participate production in person. Build CL to produce a PLC control system is very have to.
the control system of CL production PLC to make to produce automation, can make operation personnel Be transacting indoor see the dynamic state appearance of production process, thus better control and regulate production. This item design of control system adoption person machine the appearance is a place of honor machine, there aring supervision and data to collect (SCADA) function, and having a set of form , development and opening function. Can carry out to establish appearance, pass the button in the appearance to carry out to rise system, stop, break down a processing etc. a control, carry out a long range control t