Delete entries from the alarm history in Boss’nX

Boss’nX lets you permanently delete entries from the alarm history, row by row or for all the displayed results, in a supervision as well as in hypervision. Deletion removes the entries from the history; it does not resolve the cause of an alarm and the procedure offers no restore.

For the administrator or installer authorized to manage alarms. To simply acknowledge an entry, use acknowledgment.

Before you start

• Your role has the Delete alarm history capability. The view or acknowledgment rights alone do not show the Delete button. See a role’s capabilities.
• If you need to keep a copy of the information, first make a CSV export.

Select the entries to delete

1. Open Alarms in the supervision, or Aggregated alarms in hypervision, and check the context.
2. Choose the appropriate tab and filters. See searching for alarms.
3. To start from an empty selection, switch to another tab, then return to the tab you want. Check that Delete is disabled before starting the new selection.
4. Check the box on the left of each row to delete, after checking the component, the message and the time.
5. To select all the rows of the current results, use the header box. When they are all checked, a new click unchecks these visible rows.
6. Check the number shown by Delete (…).

The selection follows these rules:

• changing the search, the period or the chips keeps the boxes already checked, even outside the visible results;
• the header box only acts on the current results and therefore does not necessarily empty the whole selection;
• only the tab change described in step 3 clears the entire selection.

In the aggregated view, also check the projects concerned. Deletions across several supervisions may end differently: a failure has not necessarily cancelled all the requests.

Confirm the deletion

1. Click Delete (…).
2. In Delete selected alarms, check the number announced in the permanent deletion request.
3. Click Yes, delete to send the request, or Cancel to keep the entries. Cancelling keeps the checked boxes; Escape also closes this window before sending.
4. Wait for the window to close. After Yes, delete, closing the window does not cancel the request.

Check the result

1. Note the entries that have disappeared and those that remain selected.
2. Reopen the history, get back to the same context and the same filters, then check the saved result.

Troubleshooting

Symptom or message	Check and next step
Delete is missing	Have the Delete alarm history capability of your role checked.
Delete is disabled	Check the selection.
A notification covers an action	Wait for it to disappear before clicking.
Suppression des alarmes non confirmée. Veuillez réessayer. (alarm deletion not confirmed, please try again)	Reopen the history and note the entries still present. If some rows remain selected after an attempt, check them one by one before any new confirmation.

If the failure persists, if the number of entries deleted is uncertain or if you are trying to restore an entry, contact support@can-nx.com with the context, the components, the messages and the checks made. Do not count on a restore.

French labels: Supprimer, Supprimer (…), Supprimer les alarmes sélectionnées, Oui, supprimer, Annuler. The unconfirmed deletion message stays in French in the English interface.