Cumulant Decomposer*


  • This stage calculates the delta value between the current record and the last record in the attr field and the electric energy data. It has a dependency on the Last Record Appender stage.
  • Incompatible with old data formats, i.e. cannot filter data by ModelId::PointId.

Configuration

The configuration tabs for this stage are General, Basic, and Input/Output.

General

Name Required? Description
Name Yes The name of the stage.
Description No The description of the stage.
Stage Library Yes The streaming operator library to which the stage belongs.
Required Fields No The fields that the data records must contain. If the specified fields are not included, the record will be filtered out.
Preconditions No The conditions that must be satisfied by the data records. Records that do not meet the conditions will be filtered out. For example, ${record:value('/value') > 0}. For the syntax of EL expressions, see Expression Language.
On Record Error Yes

The processing method for error data.

  • Discard: Error data will be discarded and ignored
  • Send to Error: Error messages will be reported
  • Stop Pipeline: The pipeline will be stopped

Basic

Name Required? Description
Quality Filter No Filter the data according to the data quality. Only records that meet the quality conditions will be processed by this stage.

Input/Output

Output Results

The specified scale and slope values (fixed value or attribute value) and the calculated record value are included in the attr struct.

Output Example

With last record

../../../_images/delta_operator_result_111.png

Without last record

../../../_images/delta_operator_result_211.png