Method for energy management of a field device of process automation
AssigneeEndress + Hauser GmbH + Co. KG
InventorsChristian Seiler, Peter Klöfer
Life of this patent
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Abstract
The invention relates to a method for energy management of a process automation field device having a first module and at least a second module, wherein the field device is supplied with energy by a two conductor bus, wherein the first module, at least temporarily, consumes more energy than the two conductor bus continuously delivers, and an energy storer supplied by the two conductor bus is associated with the first module, wherein the second module is supplied continuously with energy by the two conductor bus, wherein operation of the first and second modules is so controlled that the second module has precedence over the first module and the first module is, in given cases, at least temporarily, not functional.
Claims6
A method for energy management of a process automation field device having a first module and at least a second module,
- wherein the field device is supplied with energy by a two conductor bus,
- wherein the first module, at least temporarily, consumes more energy than the two conductor bus continuously supplies, and an energy storer supplied with energy by the two conductor bus is associated with the first module,
- wherein the second module is supplied continuously with energy by the two conductor bus, the method comprising:
- controlling an operation of the first module and the second module such that the second module has energy precedence over the first module and the first module is at least temporarily not functional;
- and
- the second module isolating the energy storer from the two conductor bus during the operation of the second module.
Dependencies are inferred from the claim text.