Sounder/Tss1 Motion Protocol - Simrad ES70 - INSTALLATION REV A Installation Manual

9 = relative biomass density in m²/nmi² (NASC) (s
z.z
NASC means Nautical Area Scattering Coefficient. This is the format (s
we provide the biomass data.
= spare for future expansions
10
spare1
11 = spare for future expansions
spare2

Sounder/TSS1 Motion protocol

This proprietary
Simrad Sounder/TSS1
heave, roll and pitch compensation. When you select this protocol, the number of sensor
variables is fixed, and there is no token associated with it. However, baud rate and output
rate may be adjusted to fit your needs. The format is based on ASCII characters, the
datagrams have fixed length, and it is terminated with a carriage return and line feed.
The definition of the attitude angles in this format is different from the Euler angles
definition used elsewhere. The difference appears in the roll angle, where:
Format
:aabbbb shhhhxsrrrr spppp<cr><lf>
Format description
1 = sway – two characters hex number with sway acceleration, in 0.03835 m/ss
aa
units
2 = heave – four characters hex number with heave acceleration, in 0.000625
bbbb
m/ss units
3 = a single character providing a "space" character if the value is positive, or a
s
"–" character if it is negative
= heave – four characters decimal number with heave position in centimetres,
4
hhhh
positive up
5 = status character:
x
• U = Unaided mode and stable data. The sensor operates without external input
data.
• u = Unaided mode but unstable data. The sensor is without external input data,
but the data from the sensor is unstable. A probable cause for this is the lack of
alignment after the sensor has been switched on restarted. The alignment period
from a power recycle is normally approximately five minutes.
• G = Speed aided mode and stable data. The sensor operates with external input
of speed data.
• g = Speed aided mode but unstable data. The sensor operates with external input
of speed data, but the data from the sensor is unstable. A probable cause for this
is the lack of alignment after the sensor has been switched on restarted, or a
failure in the speed data input.
343522/A
)
A
protocol may be the most common interface for
Telegram formats
m²/nmi²)
A
173