AuxParameters is an additional text of the event. In the text it is used for the placeholders in the message to the alarm.
HelpSource is a source for additional help information.
NotificationCategory provides the category of the notification. It is used to distinguish if the message is representing an internal event, an information, a dialogue message, an error, a warning, a state or an acknowledgement. Annex C contains all NotificationCategory defined in this specification.
VendorNotificationId is a unique vendor-specific identifier for the event.