Furuno GS-100 Operator's Manual page 127

CUR-Water current layer–Multi-layer water current data
$**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 (1 to 3)
4. Current depth in meters (no use)
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 (no use)
DPT-Depth
$**DPT,x.x,x.x,x.x,*hh<CR><LF>
1 2 3
1. Water depth relative to the transducer, meters
2. Offset from transducer, meters
3. Minimum range scale in use (no use)
HBT-Heartbeat supervision sentence
$**HBT,x.x,A,x*hh<CR><LF>
1 2 3
1. Configured repeat interval (1 to 99(s))
2. Equipment status (A=Normal V=System fail)
3. Sequential sequence identifier (0 to 9)
HDG-Heading, deviation and variation
$**HDG,x.x,x.x,a,x.x,a*hh<CR><LF>
1 2 3 4 5
1. Magnetic sensor heading, degrees
2. Magnetic deviation, degrees
3. E/W
4. Magnetic variation, degrees
5. E/W
HDT-Heading true (Not used by SOLAS ships)
$**HDT, xxx.x,T*hh<CR><LF>
1 2
1. Heading, degrees
2. True (T)
APPENDIX 6 DIGITAL INTERFACE (IEC61162-1/2/450)
AP-19