Scale and Offset Processor

The “Scale and Offset Processor” is installed with the UA Office Link Application. The processor scales and/or offsets values as configured, retaining the data types and qualities of the input values.

Add to Task

Add the “Scale and Offset Processor” to a task by dragging it from the “Build” panel onto the task’s “Task Builder” panel.

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Configuration

Select the “Scale and Offset Processor” item in the “Task Builder” panel to view its properties.

../../_images/processor-scale-offset-edit.png

You can change the following properties:

  • Topic
    The title of the “Scale and Offset Processor” as it appears within the task builder.
  • Scale and Offset
    Scale and offset values that determine how incoming tag values are transformed before being passed on to the output stage. The incoming tag value is first multipled by the Scale value, then the Offset value is added.

Press the “Apply” button to commit your changes.

Example

The following example shows a task that transfers data from OPC UA to an ODBC database. Tag values will be multiplied with 0.001 before storing the data into the database.

../../_images/processor-scale-offset-example.png