Patent attributes
Disclosed is a field device comprising: a connection terminal; field device electronics; an internal interface for connecting an electronic module; the electronic module having at least one electronic component for realizing an additional functionality; a capacitor, which is designed to provide an additional first auxiliary energy amount to the component if the component of the electronic module has an energy demand exceeding the main power; a battery, which is designed to provide a second auxiliary energy amount to the at least one component if the at least one component of the electronic module has an energy demand exceeding the main power and the first auxiliary energy amount, wherein the battery provides the second auxiliary energy amount to the component only if the main power and the first auxiliary energy amount are not sufficient for the energy supply of the component.
