Marport Scala - NMEA Outputs from Scala; Marports Proprietary Sentence

Scala | V7 | Appendix
Sentence Format
First compliant
version
of Scala
WLC - Scantrol
winch length
(clump)
$SCWLC,a.a,M,b.b,M*hh<CR><LF>
1.
$SCWLC: Talker identifier + sentence formatter*
2.
a.a,M: paid out wire in meters*
3.
b.b,M: wirespeed in meters/sec., positive when paying out
wire
4.
*hh: Checksum*
1.0.6.0
WTP -
Scantrol winch
tension (port)
$SCWTP,a.a,T*hh<CR><LF>
1.
$SCWTP: Talker identifier + sentence formatter*
2.
a.a,T: tension in tons*
3.
*hh: Checksum*
1.0.6.0
WTS - Scantrol
winch tension
(starboard)
$SCWTS,a.a,T*hh<CR><LF>
1.
$SCWTS: Talker identifier + sentence formatter*
2.
a.a,T: tension in tons*
3.
*hh: Checksum*
1.0.6.0
WTC - Scantrol
winch tension
(clump)
$SCWTC,a.a,T*hh<CR><LF>
1.
$SCWTC: Talker identifier + sentence formatter*
2.
a.a,T: tension in tons*
3.
*hh: Checksum*
1.0.6.0
NMEA Outputs from Scala
Scala can output data in the following formats.
Marport's proprietary sentence
Scala uses the following sentence to output sensor data:
$MPMSD, X, YY, ZZZ, TTT, u, VV.VVV*<chk>
1.
$MP: Talker identifier
2.
MSD: Sentence formatter (Marport Sensor Data)
3.
X, YY, ZZZ: location of the emitting sensor on the trawl gear
4.
TTT: type of sensor data
5.
u: acronym of the unit
6.
VV.VVV: decimal value
7.
*<chk>: checksum. The checksum is a security measure to ensure that the sentence is
transmitted accurately. The checksum follows the NMEA specifications (IEC 61162-1 Ed.4).
The following sections give more details about the contents of the sentence.
| 140