Simrad SH90 - PRODUCT DESCRIPTION REV A Specifications Page 58

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NMEA messages and data overview for IS15 Remarks:
Message ident.
HDG
(HDM)
HDT
RSA
MWV
(VWR)
(DBK)
DBT
DPT
MTW
VHW
VLW
GGA
GLL
RMA
RMC
VTG
ZDA
(APA)
APB
BOD
BWW
BWC
BWR
RMB
XTE
XTR
ZTG
HSC
Compass_Data Compass heading, M x x x
Compass heading, T x x x
Rudder_Data Rudder angle x
Wind_Data Apparent wind angle and speed x x Instruments V1R5 onwards, Expander V1R2
True wind angle and speed x onwards, also transmits MWV with true wind.
Depth_Data Depth ref transducer 1 2 2 1: normal priority, 2:higher priority
Transducer-Keel Offset x* * Output only. Input offset is ignored and set
Depth range x on instruments.
Speed_Temp_Data
Speed through water x
Log distance and trip x
Water temperature x
Gps_Data
Present position Lat, Long x x x x
COG, T xxx
COG, M x
Universal Time Coordinated (UTC) x x x x
Magnetic variation
x x x Magnetic variation in HDG message see note2.
SOG xxx
Nav_Data
To-wp ident. xxx x x xx
From-wp ident. xx x
Bearing wp-wp, T x x x Outputs bearing as magnetic
Bearing wp-wp, M xxx x
Bearing pos-wp, T x x x x Outputs bearing as magnetic
Bearing pos-wp, M xxx
Distance pos-wp xxx
Time to go to dest. Wp x
XTE xx xxx
Waypoint closure velocity, VMG x
Steering_contr1 Heading steering cmd, T / M x Not displayed
IS15 RX: x x x x xxxxxxx xxxxxxxxx x x xxxxxx
IS15 TX: x x x x x x x x x x x x x x DBT out (instruments V1R5 or later, Expander V1R2)
Note1: APB messa
g
e ma
y
read in true or ma
g
netic bearin
g
w
p
-w
p
and bearin
g
p
os-w
p
. These fields are however sent as ma
g
netic bearin
g
s from IS15
Note2: Magnetic variation from the HDG message is only used to calculate true heading from the magnetic heading in the same message.
Magnetic variaton out in the HDG-message is however the variation currently in use in the IS15 system.
Proprietary sentences in/out IS15:
In to Is15 $PSTOK,a<CR><LF> Status of compass calibration: a = I:init, R:running, F:failed, C:calibrated
Out from IS15: $PSTOK,,,x.x,*XX<CR><LF> Set compass offset. x.x is offset angle, 0 to 360 degrees
Out from IS15: $PSTOC,*77<CR><LF> Start compass calibration.
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