1.Right-click the Report and select the Insert - Group Header/Footer option. This option inserts a new Group in a Report.

Insert a Group Header or Footer

2.In GroupHeader1's DataField property, write an expression or field to group data. Our data is going to be grouped by minute.

Inserting an expression in a Field

3.Copy the E3TimeStamp field from the Detail Section to the GroupFooter1 Section.

4.To calculate the number of records per minute change, in the E3TimeStamp SetPoint on GroupFooter1, the properties showed on the next figure.

E3TimeStamp properties

5.Before the SetPoint, insert a fixed text with the expression "Number of alarms per minute".