Title :
PLC analog signals´ vertical filtering
Author :
Li, Binlin ; Ye, Liu
Author_Institution :
Coll. of Electr. & Electron. Eng., Changchun Univ. of Technol., Changchun, China
Abstract :
In the complicated factory production environment, carry out the complex large-scale production, for the electromagnetic environmental impact, The acquisition of the analog signals of PLC will appear distortion or drift, after difference differential equation of the low-pass filter, do digital filter by PLC.Achieve the the purpose of removing interference of analog quantity, and apply to the actual constant liquid position control.
Keywords :
difference equations; digital filters; filtering theory; low-pass filters; position control; production facilities; programmable controllers; signal detection; PLC analog signal vertical filtering; analog signal acquisition; complex large scale production; constant liquid position control; difference differential equation; digital filter; electromagnetic environmental impact; factory production environment; interference removal; low-pass filter; Digital filters; Educational institutions; Filtering algorithms; Interference; Low pass filters; Mathematical model; PLC; differencing; pass filtering;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2011 International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4244-8162-0
DOI :
10.1109/ICECENG.2011.6057395
