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DST110 User's Manual
DST110 NMEA 2000
PGN 126208 – NMEA Command Group Function – Offset Calibration
This will set the offset for the water depth measurement. The user has a choice of two types of
offset to program into the DST110's depth transducer. Positive values of offset indicate the depth
of the transducer below the waterline. Negative values of offset indicate the depth of the bottom
of the boat's keel below the DST110's depth transducer.
Field 1: Complex Command Group Function Code (8 bits) – set this field's value to 0x01, which
denotes a command PGN
2: Commanded PGN (24 bits) – set this field's value to 128267, which denotes the Water
Depth PGN
3: Priority Setting (4 bits) – set this field's value to 0x8, which indicates to leave priority
settings unchanged
4: Reserved (4 bits) – set this field's value to 0xF, which is the value for a reserved field
of this size
5: Number of Pairs of Commanded Parameters to Follow (8 bits) – set this field's value
to 0x1, indicating that one parameter will follow
6: Number of First Commanded Parameter (8 bits) – set this field's value to 0x3, which
indicates the Offset field
7: Offset (16 bits) – set this field's value to the desired offset value. Units of measurement
for this field are 1x10
the waterline. For instance, if the transducer is located 2.5 m below the waterline, set
this field's value to 2500 (0x09C4). If the bottom of the keel is located 2.5 m below the
transducer, set this field's value to -2500 (0xF63C).
PGN 126208 – NMEA Command Group Function – Distance Log Reset
This command will reset the "Distance Since Last Reset" field of the Distance Log PGN
(128275).
Field 1: Complex Command Group Function Code (8 bits) – set this field's value to 0x01, which
denotes a command PGN
2: Commanded PGN (24 bits) – set this field's value to 128275, which denotes the
Distance Log PGN
3: Priority Setting (4 bits) – set this field's value to 0x8, which indicates to leave priority
settings unchanged
4: Reserved (4 bits) – set this field's value to 0xF, which is the value for a reserved field
of this size
5: Number of Pairs of Commanded Parameters to Follow (8 bits) – set this field's value
to 0x1, indicating that one parameter will follow
6: Number of First Commanded Parameter (8 bits) – set this field's value to 0x4, which
indicates the Distance Since Last Reset field
7: Distance Since Last Reset (16 bits) – set this field's value to 0 to reset the Distance
Since Last Reset counter to zero.
Page A4
®
Received PGNs
-3
m. Positive values indicate the depth of the transducer below
Appendix A – NMEA 2000
®
Interfacing
Revision 1.3
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