Method for operating a field device of process automation technology

摘要

Method for operating a field device of process automation technology, wherein the field device includes a main circuit, which serves in a first operating mode for evaluation and for output of process data, which preferably come from a measuring transducer, wherein the field device includes a first interface, which serves in the first operating mode to supply the field device, especially the main circuit, with electrical energy, wherein the field device includes a second, preferably wireless, interface, which serves for transmission of data and/or electrical energy to the field device, wherein the field device, preferably the main circuit, is supplied in a second operating mode with electrical energy, preferably exclusively with electrical energy, obtained via the second interface.