Interval for selecting values from the archive

If no predefined time period is suitable for selecting values from the archive (e.g., this hour, last 2 hours, etc.), the user can define their own interval.

To set a user-defined time interval

1. Select Choose custom item from the Select time interval dropdown box.
2. The following dialog box allowing the user to define a time interval is opened.  
   
   
   
   
3. In the calendar (1), select the required month and year of the time interval beginning (click the items showing year and month). The red item (4) shows the current date.
4. In the calendar (2) select the required month and year of the time interval end.
5. In the calendar (1) click a day - the time interval beginning and hold down the mouse button.
6. In the calendar (2) click a day - the time interval end and release the mouse button.
7. Time interval may also be defined in the input fields (3) showing required time parameters (3).
8. To confirm your settings, click the OK button.

Note 1:
A time interval within one month can be defined in one of the calendars.

Note 2:
 At the same time, you can open several dialog boxes showing values from the archive - it allows you to browse the data of various objects of Historical value type or one object within different time periods.