用PLC和圆形操作终端组成的卷烟厂除尘监控系统

Monitor system of dust removal control composed by PLC and graphic operation terminal

在卷烟厂除尘控制系统中，以ＰＬＣ为核心，实现顺序逻辑控制和闭环调节相结合的控制方案。阐述了系统控制原理，并给出系统控制结构，以及介绍了控制系统软件设计。

The control scheme for the dust - removal control system in cigarette plant is introduced, in which the Sequence logical control is combined with the feedback control based on PLC. The control Principle is explained, the configuration of the control system is given and the design of control software is also described.