Advanced Collection Example

About this task

In this example, you calculate a value (such as an hourly average of a source tag) or add two source tags together.

Procedure

  1. Using Historian Administrator, add a tag manually to the destination, as shown in the following image:


  2. In the Tags section, select Collection.
  3. In the Collection Type box, select Polled.
  4. Set the Collection Interval to 1 hour.
  5. Select Calculation.
  6. In the Calculation section, enter the name of the tag, or use the Insert Function Wizard to browse and select the tagname. Then, build your calculation formula.
    The following figure shows an example of inserting a calculated value for a tag with the Insert Function Wizard.

  7. Select Insert.
    The Tag Maintenance page appears, showing the formula in the Calculation section.

  8. Select Update to save your changes.
    A message appears, asking you if you want to test the formula.
  9. Select Yes.
    The Server-to-Server collector will begin processing the created tag upon the next collector reload.