Using the External Computer Data Link
MicronNav System
0656-SOM-00001-07
123
© Tritech International Ltd.
7.2.10. $PSIMSSB
This 3rd party output string is taken from the Simrad HiPAP positioning system. The string is
variable length ASCII with comma field separators. X,Y,Z co-ordinate positions are relative
values unless GPS is active in which case the co-ordinate outputs become Easting, Northing
and Depth respectively.
The full string format is as follows:
‘$PSIMSSB’ Reply Data Structure
Data Description
Data Range
Field Range
NMEA string header
Always ‘$PSIMSSB’
hhhhhhhh
Comma separator
Always ‘,’
,
Time of data (UTC time)
000000.00 to 235959.99
hhmmss.ss
Comma separator
Always ‘,’
,
Beacon/Target ID (0 = Responder, 1..15 =
Transponder, 19=INS)
B00 to B99
ccc
Comma separator
Always ‘,’
,
Target Status
‘A’ = Okay, ‘V’ = Not Okay A
Comma separator
Always ‘,’
,
Error Code, left empty
Always blank
Comma separator
Always ‘,’
,
Coordinate system
‘C’ = Relative Cartesian, 'U'
= Absolute UTM
A
Comma separator
Always ‘,’
,
Orientation
‘H’ for Heading up & ‘N’
for North up (both when
output is Relative XY), ‘E’
for Easting, Northing (when
in Absolute UTM format)
A
Comma separator
Always ‘,’
,
SW Filter
‘M’ for Measured, ‘F’ for
Filtered
A
Comma separator
Always ‘,’
,
X (or Easting)
0 to 999999
x.x
Comma separator
Always ‘,’
,
Y (or Northing)
0 to 999999
y.y
Comma separator
Always ‘,’
,
Z (or Depth)
0 to 999999
z.z
Comma separator
Always ‘,’
,
Expected Accuracy, unused
Always 0.0
q.q
Comma separator
Always ‘,’
,
Additional information
Always ‘N’
A
Comma separator
Always ‘,’
,
1st Additional value
Always blank
Comma separator
Always ‘,’
,
2nd Additional value
Always blank
