The number of objects displayed on the Control Panel is determined by the current filter if it is activated by clicking the filtering button  ("Enable/disable filter"). The first combo box sets condition for filtering by alarms, failures, presence or absence of connection; the second combo box sets the condition to "Show only objects that have errors in the last..."; the third combo box sets the condition "Only objects with errors lasting longer than...".

The upper-left corner contains information about the number of objects, out of the total number, that are displayed on the Control Panel after clicking the filtering button.

Note.

If Alarms, Failures or Disconnected filter is enabled, rates are not calculated – see also The status panel.