Abstract: A method for the communication of system control units with multiple energy generating systems includes receiving request data from the system control units and system data from the energy generating systems at a common gateway, managing the system data and processing the request data in the gateway, and sending control commands to the energy generating systems and/or data responses to the system control units via the gateway. The request data and/or the system data are received in at least two different data models at the gateway, and translated from their respective data models into a metadata model. The translated system data are managed and the translated request data are processed in the gateway, resulting in data responses and/or control commands in the metadata model that are translated back into the data models of the specific system control units and/or energy generating systems, and transmitted to them by the gateway.

Abstract: A method for the communication of system control units with a plurality of spatially distributed energy generating systems, which jointly feed into a continuous supply network for electrical energy, includes receiving request data from the system control units and system data from the energy generating systems at a gateway that is operating as a common gateway, managing the system data in the gateway and processing the request data in the gateway, and sending control commands to the energy generating systems and/or data responses to the system control units that result from the processing of the request data via the gateway.

Abstract: The present invention relates to a process for preparing an extract from ivy leaves which includes the active ingredient hederacoside C and ?-hederin, and to extracts prepared by this process. According to this there is initially provision of a first, ?-hederin-rich extract and subsequently provision of a second, hederacoside C-rich extract. In a last step, the two extracts are blended to give an extract which has an adjusted hederacoside C content and an adjusted ?-hederin content.

Abstract: A process for producing an extract of ivy leaves using an extracting agent, with the extract comprising ?-hederin. In this process, a quantity of dried ivy leaves is first of all comminuted, then fermented by adding water and subsequently extracted by adding the extracting agent; finally, the extract is dried.