Alert System
This section describes the ECDIS alert system: notification types, acknowledgment logic and statuses, as well as working with the alert log.
Features
During ECDIS operation, situations arise that require the navigator’s attention. An alert system is implemented to draw attention. The most important notifications must be acknowledged by the operator.
Notification types:
Alarm — requires immediate response. An alarm can also be an escalation of an unacknowledged warning status. When an alarm is generated, a triple audible signal is sounded.
Warning — a situation requiring attention to prevent the deterioration of conditions; if the navigator does not respond, a Warning may escalate to an Alarm status. The audible signal is double.
Caution — requires attention under the current circumstances.
Informational notifications — general messages about the start/completion of processes, do not require acknowledgment.
Persistent messages — used to display SSE25, SSE27 messages and “Unofficial chart”.
Alerts are displayed as pop-up rectangular indicators in the notification area.
Alarm acknowledgment
To acknowledge a notification — press ACK in the alert log row or use keyboard shortcuts.
Alarm and warning statuses
Active-unacknowledged — the alarm is current and unacknowledged.
Active-silenced — the alarm is current, unacknowledged, and the sound is muted.
Active-acknowledged — the alarm is current and acknowledged.
Responsibility transferred — the alarm is current, unacknowledged, and transferred to the BAM.
Rectified-unacknowledged — the condition has been resolved, but the alarm has not been acknowledged.
Active — the alarm condition is current.
Normal — no alarm condition is present.
Alert Log
The alert log displays all current active alarms, warnings, and cautions, except for normal and terminated statuses. Alerts are sorted by priority and time of occurrence.
Navigation |
|---|
|
Click the notification banner |
→ 
No. |
Element |
|---|---|
1 |
Alert type (alarm/warning/caution) |
2 |
Alert identifier |
3 |
Brief description |
4 |
View detailed description |
5 |
Ship’s time of the event |
6 |
Elapsed time since occurrence |
7 |
“Unacknowledged” status |
8 |
Filter alerts with “default” criteria |
9 |
“Acknowledged” status |
To view the list of navigational hazards, click the “Navigational hazard” element.
No. |
Element |
|---|---|
1 |
Navigational hazard name |
2 |
Navigational hazard description |
3 |
Center the chart on the navigational hazard |
4 |
Refresh the list of navigational hazards |
5 |
Return to the alert list |
Tip
When a navigation sensor or radar processor is deleted/disabled, all alerts generated by it will no longer be displayed in the notification area and will be removed from the alert log, but will be retained in the navigation log.
Tip
All alarms, warnings, and cautions are recorded in the electronic logbook.