Title :
Flow Rate Process Control Based on LonWorks
Author :
Jingzhuo Wang ; Guolei Qiao
Author_Institution :
Dept. of Electron. Eng., Huaihai Inst. of Technol., Llianyungang, China
Abstract :
The LonWorks network control technology, one of the field bus technologies developed in recent years, has been widely used in industrial automatic areas. The scheme of the flow process control system based on LonWorks technology was put forward. The structure of flow process control system was discussed. The flow control network was built by adopting LonMaker tool based on the PID control theory. The signal of flow rate acquired by the electromagnetic flow meter is sent to LonWorks network by an AI LonPoint. Its output can be used to control the electricity-driven adjusting valve. Finally, the data for controlling flow rate are acquired through calling LNS API functions with the program developed by VB. Therefore, it made the monitor and control of the flow rate come true.
Keywords :
control engineering computing; field buses; flow control; flowmeters; process control; three-term control; AI LonPoint; LNS API functions; LonWorks network control technology; PID control theory; electricity-driven adjusting valve; electromagnetic flow meter; field bus technology; flow rate process control; Automatic control; Control theory; Electrical equipment industry; Electronic mail; Electronics industry; Industrial control; Industrial electronics; Process control; Three-term control; Valves; LonWorks; PID; electricity-driven adjusting valve; electromagnetic flow meter; process control;
Conference_Titel :
Control Conference, 2006. CCC 2006. Chinese
Conference_Location :
Harbin
Print_ISBN :
7-81077-802-1
DOI :
10.1109/CHICC.2006.280720
