Patent ID: 11963076
Assignee: ENDRESS+HAUSER SE+CO. KG
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 6:
7. An automation technology system, comprising:
a field device having an interface for a display internal to the field device; and
a field device adapter for wireless data transfer, including:
an interface for connection to the field-device-internal interface provided for the display of the field device;
a radio module configured to wirelessly transmit a data packet in accordance with a standard of a low-power wide-area network, wherein the radio module is further configured only to transmit the data packet and not to receive any data packets; and
an adapter electronics, including:
a current-limiting circuit configured to limit an energy drawn via the field-device-internal interface to a predefined value corresponding to a maximum energy requirement of the display; and
a stored energy source,
wherein the adapter electronics are configured to charge the stored energy source with the limited energy, to monitor a state of charge of the stored energy source, and to compare a currently determined state of charge with a predetermined state of charge, and
wherein the adapter electronics are further configured to provide the radio module with energy originating from the stored energy source when the predetermined state of charge is reached,

wherein the radio module is further configured to transmit the data packet based on the provided energy,

wherein the field device adapter is electrically connected to the field-device-internal interface via the interface of the field device adapter.