Furuno FA-170, Installation Manual, Page: 54 / 76

APPENDIX 2 DIGITAL INTERFACE
AP-12
ALF - Alert sentence
ALR - Set state
ARC - Alert command refused
EPV - Command or report equipment property value”
HBT - Heart beat supervision
$**ALF,x,x,x,hhmmss.ss,a,a,a,aaa,x.x,x.x,x.x,x,c--c,*hh<CR><LF>
1 2 3 4 5 6 7 8 9 10 11 12 13
1. Total number of ALF sentences for this message (1, 2)
2. Sentence number (1, 2)
3. Sequential message identifier (0 to 9)
4. Time of last change (hhmmss.ss, NULL)
5. Alert category (B=Category B, C=Category C, NULL)
6. Alert priority (W=Warning, C=Caution, NULL)
7. Alert state
V=active - unacknowledged, S=active - silenced,
A=active - acknowledged or active, O=active - responsibility transferred,
U=rectified - unacknowledged, N=normal, NULL
8. Manufacturer mnemonic code (FEC, NULL)
9. Alert identifier (001 to 999999)
10. Alert instance (NULL)
11. Revision counter (1 to 99)
12. Escalation counter (0 to 9)
13. Alert text
$**ALR,hhmmss.ss,xxx,A,A,c—c,*hh<CR><LF>
1 2 3 4 5
1. Time of alarm condition change, UTC
2. Unique alarm number (identifier) at alarm source (000 to 999, NULL)
3. Alarm condition (A=threshold exceeded, V=not exceeded)
4. Alarm acknowledge state (A=acknowledged, V=not acknowledged)
5. Alarm description text (alphanumeric)
$**ARC,hhmmss.ss,aaa,x.x,x.x,c*hh<CR><LF>
1 2 3 4 5
1. Time
2. Manufacturer mnemonic code
3. Alert identifier (001 to 99999)
4. Alert instance (NULL)
5. Refused alert command
A=acknowledge
Q=request/repeat information
O=responsibility transfer
S=silence
$ **EPV,s,cc,c--c,x.x,c--c*hh<CR><LF>
1 2 3 4 5
1. Sentence status flag (Fixed: R=Response)
2. Equipment type (Fixed: AI)
3. Unique indentifier (MMSI: 00000000 to 999999999)
4. Property identifier for property to be set (106 to 113)
5. Value of property to be set
$--HBT, x. x, A, x*hh<CR><LF>
1 2 3
1. Configured repeat interval (50)
2. Equipment status (A)
3. Sequential sentence identifier (0 to 9)