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.