Patent ID: 11936376
Assignee: ENDRESS+HAUSER SE+CO. KG
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method for operating at least one optoelectronic button or operating element arranged behind an optically transparent control panel of a field device of automation technology, for detecting an actuation of the optoelectronic button or operating element by an operator of the field device, the method comprising:
detecting whether the field device is located in an interior area or in an exterior area;
defining a first evaluation condition and a second evaluation condition which are used to detect the actuation of the optical button or control element, wherein the first evaluation condition is used when it is detected that the field device is located in an interior area, and the second evaluation condition different from the first is used when it is detected that the field device is located in an exterior area;
detecting or evaluating whether an actuation of the optoelectronic button or control element is present based on the first evaluation condition or on the second evaluation condition, wherein in the first evaluation condition, a value dependent on a time profile of an output signal originating from the optoelectronic button or control element is set in relation to a current value of the output signal for detecting the actuation of the optoelectronic button or control element, and in the second evaluation condition, a value independent of the time profile of the output signal during measuring operation of the field device is set in relation to a current value of the output signal for detecting the actuation of the optoelectronic button or control element.