Alert Category And Alert Acknowledgement From Connected Equipment, Ams; How To Acknowledge An Alert, Stop The Buzzer From The Ams; About The Alr And Ack Sentences - Furuno FMD-3200 Operator's Manual

25.4 Alert Category and Alert acknowledgement
From Connected Equipment, AMS
Category A alert
Acknowledged from the equipment that generated the alert: The alert is acknowl-
edged at both the equipment and the AMS and their buzzers stop.
Acknowledged from the AMS: The alert is acknowledged at neither the equipment
that generated the alert nor the AMS, however their buzzers stop. (The buzzer sounds
again at both locations if the alert is not acknowledged within 30 seconds at the equip-
ment that generated the alert.)
Category B alert
Acknowledged from the equipment that generated the alert or AMS: The alert is
acknowledged at both the equipment and the AMS and their buzzers stop.
25.5 How to Acknowledge an Alert, Stop the Buzzer
From the AMS
There are two methods to acknowledge an alert and/or stop the buzzer from the AMS:
• Trackball: Click the alert name on any window in the AMS.
• ALARM ACK key: Push the key on the connected Control Unit.
25.6

About the ALR and ACK Sentences

The function of the AMS is to coordinate exchange of alerts and acknowledgement of
alerts between equipment connected to the AMS.
This AMS is designed according to the IEC's recommendations for Alert Handling (80/
520/INF). The figure below shows the transition of the Alert status at the sensor.
New alert
(Send event; update list)
NO ACTIVE ALERTS
Send no-alerts message
(max. 60 seconds between)
New alert
(Send event; create list)
ACTIVE ALERT(s)
Send alerts-list message
(max. 60 seconds between)
25. ALERT MANAGEMENT SYSTEM (option)
Yes
(send event; clear list)
No
(Send event;
update list)
Change in alert ACK state
(Send event; update list)
Alert reset.
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