Description: Time for the next pump change relative to the ExchangeTime, if the user-specific pump change mode is activated.; Name: Interchange time difference
Description: determination of the time for the next exchange of the pump relative to exchangetime, if operator specific pump exchange mode is activated; Name: exchange time difference
Description: variable quantity, which is not influenced by the control but is introduced into the control system from outside with the aim of making the final controlled variable follow it in a given relationship; Name: command variable