Anti-noise Technique of Control System
Yao Luo · Automation in Petro-Chemical Industry · 2001
The anti noise technique in industrial process control system is introduced.The reasons caused noise such as electric coupling,magnetic coupling,electric magnetic noise and resistance coupling are presented.The anti noise technique such as cable selection, grounding,digital filter and watchdog are presented too.If the anti noise problems are solved properly,it will be significant help for debugging and running of control system.