Abstract: A control component and method for an energy management unit (EM) in an industrial automation arrangement which is configured to control one of a process, a subprocess and a system part of the industrial automation arrangement. Here, the control component is configured to detect the energy consumption of at least one part of the industrial automation arrangement, and the control component is configured to relate the detected energy consumption to at least one stored specification. The control component is also configured to generate a request for at least one automation component as the result of the relating operation. The control component is configured to transmit a message containing the request to the automation component and to receive an acknowledgement message from this automation component, where the request is directed to changing an operational state of one of the process, subprocess and system part that is controlled by the automation component.

Abstract: An automation component for an industrial automation arrangement, wherein the automation component is configured to control at least one system part, process or subprocess of the industrial automation arrangement. At least two different operating states are able to be alternately set for the at least one system part, process or subprocess, and the operational states which differ with respect to the respective power consumption of the system part, process or subprocess. The automation component is configured to receive requests for a changeover to one of the at least two different operational states, the automation component is configured to output acknowledgement messages in response to the requests, and the automation component is configured to output status messages relating to the activated operating state of the operational states.