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2. SYSTEM MENU
31
2.8.2
Responsibility transfer alert
The “responsibility transfer alert” functions in the multiple sensor, multiple equipment installation.
When one sensor or one equipment fails but does not disturb the system operation (other sensor
or equipment is normal), the CAM authority sends the “responsibility transfer alert” (ACN sen-
tence) to the sensor or equipment that generated the alert.
If the sensor or equipment refuses the responsibility transfer, normal operation is restored.
If the HBT sentence is not received from the CAM within the prescribed time interval, the alert pro-
cessed as responsibility transfer alert is made active.
2.8.3
Repeat of Warning alert
For a Warning alert to become an Alarm alert, the alert priority must be changed. In most cases
the Warning alert is simply repeated. In general, only the alerts specified by the IMO can become
Alarm alerts.
When the external equipment generates a Warning alert, the Warning alert is repeated or the pri-
ority is changed to “Alarm.” The latter case is known as “Alert Escalation”.
The external equipment controls the interval at which a Warning alert is repeated. The external
equipment sends the ALF sentence to CAM to notify the CAM of repeat of a Warning alert. The
CAM also repeats the Warning alert.
CAM HMI
ALF
External
Equipment
Sensor
A
Check if there
is problem for
system
Some alerts
occur
ACN
HBT
External
Equipment
Sensor
A
Alert
regeneated
ALF
Supress the
alerts
CAM HMI
CAM
External
Equipment
ALF
Warning
repeated
Warning
repeated
Содержание FE-800
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