R
efer to pr
otection
notice ISO 16016
TH 52 614 8001 EN Rev. A 09/2018
Wärtsilä ELAC Nautik GmbH
121 / 134
ELAC LAZ 5200 – Operating Instructions
Appendix
9.3.4
ALF (Alert Sentence)
NMEA data set for signalling the alarm status. The data set is only transmitted by the
Nav-
igation Echo Sounder ELAC LAZ 5200
.
The data set contains the following information:
Fig. 9.6: ALF (Alert Sentence)
Item
Description
Total number of ALF sets in this message
With the Navigation Echo Sounder ELAC LAZ 5200, the total number is al-
ways "1".
Number of the set
With the Navigation Echo Sounder ELAC LAZ 5200, the number is always
"1".
Sequential message ID (0 to 9)
Several sentences with the same sequential message ID form a message.
With the Navigation Echo Sounder ELAC LAZ 5200, the message ID is al-
ways "0".
Time of the last change in the alarm message
Alarm category
With the Navigation Echo Sounder ELAC LAZ 5200, the alarm category is al-
ways "A" (Alarm).
Alarm priority
With the Navigation Echo Sounder ELAC LAZ 5200, the alarm priority is al-
ways "A" (Alarm).
Alarm status
•
V = Active alarm, not confirmed
•
S = Active alarm, muted
•
A = Active alarm, confirmed
•
O = Active alarm, responsibility transferred
•
U = Remedied alarm, not confirmed
•
N = Normal (no alarm)
Manufacturer’s mnemonic code
Tab. 9.8: ALF (Alert Sentence)
$SDALF,x,x,x,hhmmss.ss,a,a,a,aaa,x.x,x.x,x.x,x,c---c*hh<CR><LF>
Summary of Contents for ELAC LAZ 5200
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