Jeppesen Nobeltec Solid State Heading Sensor, Руководство пользователя

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APPENDIX A – NMEA 0183 INTERFACING
Jeppesen Marine
25
Table 3—TXT Status Message Guide
TXT – Text Transmission
The SSHS transmits various status messages using the text transmission sentence.
$IITXT,A,B,C,D*hh<CR><LF>
Field A
: Always reads “01”
03
Deviation Calibration
Failed to Complete The SSHS attempts to perform calibration five times
before giving up and issuing this sentence. Each time the
SSHS encounters an error (see message identifiers 04,
05, and 06) it restarts the Appendix A – NMEA 0183
Interfacing
27
calibration process. Upon the 5
th
error, the SSHS
exits the
calibration routine and it must be restarted
before it will once again try to perform deviation
calibration.
04
Deviation Calibration
Turning Too Fast During calibration, the vessel must not turn too fast where
the SSHS is unable to reliably develop deviation data. If
the SSHS senses the vessel turning to quickly, it will issue
this message and restart deviation calibration as long as it
has not failed five times.
05
Deviation Calibration
Turning Too Slow During calibration, the vessel must not turn too slowly
where the SSHS is unable to reliably develop deviation
data. If the SSHS senses the vessel turning to slowly, it
will issue this message and restart deviation calibration as
long as it has not failed five times.
06
Deviation Calibration
Invalid Movement During calibration, the vessel must not jerk or reverse
directions where the SSHS is unable to reliably develop
deviation data. If the SSHS senses an invalid movement, it
will issue this message and restart deviation calibration as
long as it has not failed five times.
95
Serial Number:
xxxxxxx The SSHS transmits this sentence once after it is powered
up to indicate its serial number.
96
Baud Rate: 4800 The SSHS transmits this sentence once after it is powered
up to indicate its baud rate.
97
SW Version: 1.2 The SSHS transmits this sentence once after it is powered
up to indicate its software version.
98
Model Version: 1.0 The SSHS transmits this sentence once after it is powered
up to indicate its model version.
99
Model ID: SSHS The SSHS transmits this sentence once after it is powered
up to indicate its model identification.