Furuno FAR 3220, Installation Manual

Page: 146 / 245

APPX. 3 DIGITAL INTERFACE
AP-8
ARC - Alert command refused
CUR - Current
DBT - Depth below transducer
DDC - Display dimming control
DPT - Depth
DTM - Datum reference
$--ARC,hhmmss.ss,aaa,x.x,x.x,c*hh<CR><LF>
1 2 3 4 5
1. Release time of the alert command refused (000000.00 to 235959.99)
2. Used for proprietary alerts, defined by the manufacturer (FEC, null)
3. The alert identifier (1 to 999 or 10000 to 9999999)
4. The alert instance (1 to 999999, null)
5. Refused alert command (A=acknowledge, Q=request/repeat information, O=responsibility transfer, S=silence)
$--CUR,A,x,x.x,x.x,x.x,a,x.x,x.x,x.x,a,a,*hh<CR><LF>
1 2 3 4 5 6 7 8 9 1011
1. Validity of data (A=valid, V=not valid)
2. Data set number (0 to 9)
3. Layer number (0.0 to 3.0)
4. Current depth in meters (0.00 to 99.99)
5. Current direction in degrees (0.00 to 360.00)
6. Direction reference in use (true or relative)
7. Current speed in knots (0.00 to 99.99)
8. Reference layer depth in meters (No use)
9. Heading (0 to 360.00)
10. Heading reference in use (true or magnetic)
11. Speed reference (B=Bottom track W=Water track P=Positioning system)
$--DBT,xxxx.x,f,xxxx.x,M,xxxx.x,F,*hh<CR><LF>
1 2 3 4 5 6
1. Water depth (0.00 to 99999.99)
2. feet
3. Water depth (0.00 to 99999.99)
4. Meters
5. Water depth (0.00 to 99999.99)
6. Fathoms
$--DDC,a,xx,a,a*hh<CR><LF>
1 2 3 4
1. Display dimming preset (D=Daytime, K=Dusk, N=Nightime, null)
2. Brightness percentage (00 to 99, null)
3. Color palette (No use)
4. Sentences status flag (C)
$--DPT,x.x,x.x,x.x,*hh<CR><LF>
1 2 3
1. Water depth relative to the transducer, meters (0.00 to 99999.99)
2. Offset from transducer, meters (No use)
3. Maximum range scale in use (No use)
$--DTM,ccc,a,x.x,a,x.x,a,x.x,ccc,*hh<CR><LF>
1 2 3 4 5 6 7 8
1. Local datum (W84=WGS84, W72=WGS72, S85=SGS85, P90=PE90, 999=User defined null)
2. Local datum subdivision code (No use)
3. Lat offset, min (No use)
4. N/S (No use)
5. Lon offset, min (No use)
6. E/W (No use)
7. Altitude offset, meters (No use)
8. Reference datum (No use)