Interface (Iec 61162-1, Iec 61162-2); Data Sentences - Furuno VR-3000 Operator's Manual

5. INTERFACE
(IEC 61162-1, IEC 61162-2)

5.1 Data Sentences

ALA - Set detail alarm condition
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$xxALA, hhmmss.ss, aa, aa, xx, xxx, A, A, c—c *hh<CR><LF>
1) Event time
Event time of alarm condition change includeing acknowledgement state change. If this is not available,
this shouled be a null field.
2) System Indicator of original alarm source
Indicator characters as system of alarm source. This field is two fixed characters, see AnnexD.
3) Sub system equipment indicator of original alarm source
Indicator characters as sub-system of alarm source. This field is two fixed characters, see AnnexD. For
group alarms or if no sub-system can be identified, this should be a null field.
4) Instance number of equipment/unit/item
Instance number identifying the equipment, unit or item. This field is two fixed numeric characters.
5) Type of alarm
Type of alarm. This field is three fixed numeric characters as defined in AnnexD, Table D.1. Codes 900 to
999 are user definable.
6) Alarm condition
This field is a single character specified by the following.
N = normal state;
H = alarm state (threshold exceeded);
J = alarm state (extreme threshold exceeded);
L = alarm state (low threshold exceeded, i.e. not reached);
K = ararm state (extreme low threshold exceeded, i.e. not reached);
X = other.
7) Alarm's acknowledged state
This field is a single character specified by the following:
A = acknowledged;
V = not acknowledged;
B = broadcast (acknowledged not applicable);
H = habour mode;
O = override.
8) Alarm's description text
Additional and optional descriptive text/alarm detail condition tag. Maximum number of characters will be
limited by maximum sentence length and length of other fields.
ALR - Set alarm status
Updated the text label of the alarm identification field to be the same as that field in the ACK
sentence.
$--ALR,hhmmss.ss,xxx,A,A,c--c*hh<CR><LF>
Unique alarm number (identifier) at alarm source
Time of alarm condition change, UTC
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2 3 4 5 6 7
Alarm's description text
Alarm's acknowledge state, A = acknowledged, V=
unacknowledged
Alarm condition (A = threshold exceeded, V = not exceeded)
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