A fill level measurement device including a plurality of field devices each including a microprocessor and a sensor, wherein the microprocessor is configured to generate field device data of one of a plurality of subgroups of field device data based on communication with the sensor, wherein each field device data indicates points of time at which the field device data was generated, wherein each of the plurality of subgroups of field device data corresponds to one of a plurality of data types from a group comprising echo curves, DTM measurements, measurements, events detected by the field device, DTM files and documents.