You can investigate events related to access control units, using the  Access
            control unit events  report.
        What you should know
            For example, you can use the  Access control unit events  report to see if any
                critical events happened relating to access control unit in the last
                week (for example, Hardware tamper),
                by searching for that event and setting the time range.
        
        To investigate access control unit events:
- 
                From the home page, open the  Access control unit events
                     task.
            
 
- 
                Set up the query filters for your report. Choose one or more of the following
                    filters:
                
                    Access control
                            units: 
 Select the access control units to
                            investigate. 
 
Custom fields: 
 Restrict the search to a predefined custom
                            field for the entity. This filter only appears if custom fields are
                            defined for the entity, and if the custom field was made visible to you
                            when it was created or last configured.
 
Events: 
 Select the events of interest. The event types
                            available depend on the task you are using.
 
Event
                        timestamp: 
 Define the time range for the query. The
                            range can be defined for a specific period or for global time units,
                            such as the previous week or the previous month.
 
                 
             
- 
                Click Generate report.
                
                    The access control unit events are listed in the report pane.
                    NOTE: If you have Access Managers that are offline when you launch the query,
                        you'll get an error message for each one of them, even though they are not
                        related to the selected access control units. This is because the system has
                        no way of knowing whether the selected units were managed by one of them in
                        the past or not.