Research And Development Of Miniature Electric Boiler Control System Experimental Setup

Process control is an important course of automatic subject of university. After learning the theories in the classroom, the students have an eager for digesting and understanding and to innovate. So, it is very important to establish a process control experimental system, which should be easily operated and make the control policy implement convenient.Process control system based on two-level networks for experiment equipment is studied in this paper. The Profibus is used for the first floor and the industry Ethernet is used for the upper floor, the controlled object is a experiment equipment imitating the electrothermal boiler. The experimentation setting not only has analog variables' input and output, but also has switch variables' input and output. Firstly, the constitution and work principles of experiment equipment are analyzed and the arts and crafts is introduced. The S7-400 series PLC is selected as the field control and PC is adopted for up machine. Secondly, the fuzzy-PID control experiment is taken as an example for exhibiting the experiment principle and step, the system functions and characteristics, the design and development process of the control system experiment applied software. This system has perfect teaching function for experiment, it can not only set up the basic experiment about the process control, but also benefit for the experiment about the comprehensive type and design type.