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Status
Message Name
Code
01
Deviation Calibration
Started
02
Deviation Calibration
Completed Successfully
03
Deviation Calibration
Failed to Complete
04
Deviation Calibration
Turning Too Fast
05
Deviation Calibration
Turning Too Slow
06
Deviation Calibration
Invalid Movement
SSC300 NMEA 2000
PGN 126208 – NMEA Command Group Function – Maretron Proprietary Reset
This will initiate a reset and force the SSC300 to start the calibration process.
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 126720, which denotes the
Maretron proprietary 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 0x4, indicating that four parameters will follow
6: Number of First Commanded Parameter (8 bits) – set this field's value to 0x1
7: Maretron Vendor ID and Industry Code (16 bits) – set this field's value to 0x9889
8: Number of Second Commanded Parameter (8 bits) – set this field's value to 0x02
9: Product Code (16 bits) – set this field's value to 0x1B2, which is the NMEA 2000
product code for the SSC300.
10: Number of Third Commanded Parameter (8 bits) – set this field's value to 0x03
11: Software Code (16 bits) – set this field's value to 0x0001, which is the identifier for this
version of the Maretron proprietary protocol
12: Maretron Command – set this field's value to 0xF0, which will initiate a reset and start
the calibration process.
Revision 1.0
This message is transmitted at the beginning of the magnetic deviation
calibration process.
This message is transmitted upon successful completion of the magnetic
deviation calibration process (i.e., a new deviation table has been stored
in permanent memory).
The SSC300 attempts to perform calibration 5 times before giving up and
issuing this sentence. Each time the SSC300 encounters an error (see
message identifiers 04, 05, and 06) it restarts the calibration process.
th
Upon the 5
error, the SSC300 exits the calibration routine and it must
be restarted before it will once again try to perform deviation calibration.
During calibration, the vessel must not turn to fast where the SSC300 is
unable to reliably develop deviation data. If the SSC300 senses the
vessel turning to quickly, it will issue this message and restart deviation
calibration as long as it has not failed five times.
During calibration, the vessel must not turn to slowly where the SSC300
is unable to reliably develop deviation data. If the SSC300 senses the
vessel turning to slowly, it will issue this message and restart deviation
calibration as long as it has not failed five times.
During calibration, the vessel must not jerk or reverse directions where
the SSC300 is unable to reliably develop deviation data. If the SSC300
senses an invalid movement, it will issue this message and restart
deviation calibration as long as it has not failed five times.
®
Received PGNs
Appendix B – NMEA 2000
Description
®
Interfacing
®
Page B3
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