Speed controller strategies for distributed motion control via Ethernet
Lilantha Samaranayake, Sanath Alahakoon, Kirthi Walgama · 2003
Investigations on adapting Ethernet for distributed control systems is an interesting topic in the motion control industry, due to its commercially off the shelf hardware availability and compatibility at a comparatively lower price. Conversely, the communication through shared media in standard Ethernet is non-deterministic resulting in stochastic delays of data transfer. This paper experiments the solutions, through a control engineering perspective, for the time delay problem encountered in distributing the speed control loop of a Brushless DC motor via an Ethernet network. The mean of the control delay (T) is used in standard controller strategies modified for time delayed systems.