Rdi Adcp Format; Binary Format 11 - Kongsberg Seatex Seapath 200 Installation Manual

Seatex Seapath 200 Installation Manual, rev. 13
The zeroes in the header occupy the columns used for acceleration when this format is output
from other systems. Seapath does not output acceleration.
s is the sign character, space if positive and "-" if negative. dddd is a decimal number with
leading zeroes where appropriate. The warning character is space if data are normal, "?" if
data are invalid or of reduced quality.
Columns between elements are filled with spaces.
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
roll
−
echo sounder
6.7

RDI ADCP format

The RDI format is a proprietary ASCII text format used when connecting RDI ADCP
equipment.
Format:
$PRDID,pitch,roll,head term
Explanation:
Pitch, degrees on format sddd.dd. s is the sign character, "+" or "-". ddd.dd is a
pitch
decimal number with leading zeroes where appropriate. Positive with bow up.
Roll, degrees on format sddd.dd. s is the sign character, "+" or "-". ddd.dd is a
roll
decimal number with leading zeroes where appropriate. Positive with port side up.
Heading, degrees true on format ddd.dd, with leading zeroes where appropriate.
head
CR-LF (2 bytes, values 13 and 10).
term
6.8

Binary format 11

The binary format consists of a fixed-length message using 1-, 2- and 4-byte signed and
unsigned integers. The signed integers are represented as two-complement numbers. For the
multi-byte elements, the most significant byte is transmitted first. The total number of bytes is
42.
Format:
Element
Header
Time, seconds
Time, fraction of second
Latitude
Longitude
Height
[
=
arcsin sin( ) cos(
roll
Euler
Scaling
seconds
0.01 second
30
2 = 90 degrees
30
2 = 90 degrees
centimetres
Appendix B – Output protocols from Seapath
]
⋅
)
pitch
Euler
Format
ASCII
Integer
Unsigned
Integer
Integer
Integer
57
Bytes Value
1 ASCII "q"
4
1 0 - 99
30 30
4 -2 - 2
31 31
4 -2 - 2
4