Deadbands as a crucial factor for reducing heavy load on application and database servers

Deadbends are very useful things. First of all, they represents some limits which signal has to cross, in order to consider that signal has changed. In SCADA systems which usually provides data to some other systems, majority of changes are happening very near the signal value. If dead bend is not set, we will get lots of data which are very similar, that data would press all components, and their value is smaller than the actions and load which they give to the whole system. As some research on real data shows, such small deadbands as 1% can reduce the number of changes which are enter the system about 50%. It reduces overall pressure to the system. Further small dead band increases of 2% and 3% would reduce the amount of data which are entering some system significantly more.
So, according to situation and project requirements, deadbends are very useful things if they are used properly.
One importan aspect of choosing deadband is what that 1% means - 1% of last value, or 1% of signal range.