US 11,789,422 B2
Automation field device
Harald Schäuble, Lörrach (DE); Simon Gerwig, Schopfheim (DE); Christian Strittmatter, Rickenbach (DE); and Wolfgang Brutschin, Schopfheim (DE)
Assigned to Endress+Hauser SE+Co. KG, Maulburg (DE)
Appl. No. 17/269,140
Filed by Endress+Hauser SE+Co. KG, Maulburg (DE)
PCT Filed Jul. 30, 2019, PCT No. PCT/EP2019/070465
§ 371(c)(1), (2) Date Feb. 17, 2021,
PCT Pub. No. WO2020/035301, PCT Pub. Date Feb. 20, 2020.
Claims priority of application No. 10 2018 120 108.7 (DE), filed on Aug. 17, 2018.
Prior Publication US 2021/0311450 A1, Oct. 7, 2021
Int. Cl. G05B 19/042 (2006.01); G08C 19/00 (2006.01); H04Q 9/00 (2006.01)
CPC G05B 19/0428 (2013.01) [G08C 19/00 (2013.01); H04Q 9/00 (2013.01); G05B 2219/25428 (2013.01); G05B 2219/33192 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An automated Namur field device, comprising:
a connecting terminal for connecting a two-wire line;
field device electronics which are provided with maximum operating power via the connecting terminal through the two-wire line, wherein the field device electronics are configured to perform a main functionality of the field device, including a measurement or limit value detection;
an internal interface provided by the field device electronics for connecting an electronics module;
an electronics module having at least one electronic component for realizing an additional functionality, wherein the at least one electronic component of the electronics module is connected to the field device electronics for data transmission via the internal interface, and the internal interface of the at least one electronic component also provides a main power;
a capacitor associated with the electronics module and configured such that the capacitor is charged via the internal interface and, in the event that the at least one component of the electronics module has an energy demand exceeding the main power, the at least one component provides additional first auxiliary energy; and
a battery associated with the electronics module, designed such that the battery, in the event that the at least one component of the electronics module requires an energy demand exceeding the main power and the first auxiliary energy, provides second auxiliary energy to the at least one component, wherein the capacitor and the battery are coordinated such that the battery provides the at least one component with the second auxiliary energy only if the main power and the first auxiliary energy are not sufficient for the energy supply of the at least one component.