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SKIPPER Electronics AS
Edition: 2021-09-16
ESN100 Operation and Installation Manual
Chapter: System Setup
Exact formats for these sentences can be found in the relevant IEC standards. PSKP sentences are proprietary
for SKIPPER and has the following format.
$PSKPDPT,x.x,x.x,x.x,xx,xx,c--c*hh<CR><LF>
| | | | | | |___________
Check sum
| | | | | |________________
Transducer location AFT, FWD, PORT, STB
| | | | |___________________
Echo sounder channel number
| | | |______________________
Signal strength
| | |_________________________
Maximum range scale in use, meters
| |_____________________________
Oset to keel, meters
|________________________________
Water depth relative to transducer, meters
Example $PSKPDPT,3.7,0.0,500.0,,1,FWD*11
NMEA inputs
e ESN100 does not have any internal clock. Time from NMEA input is recommended to be installed:
Time. ZDA. Also accept GGA, GLL, RMC
All accepted NMEA inputs will be logged in history le
Format Function
$__DDC,X,yy,X,C*nn Dimming function X= O,N,K,D , YY is % the system will
accept X and adjust to the user set level (See dimming)
$__ACK,xxx*nn Acknowledge alarm ALR
$--ACN,hhmmss.ss, aaa, x.x, x.x, c, a*hh Acknowledge alarm ALF
$HBT Alert heartbeat
$___XDR,D,x.x,M,pos,D,x.x,M,pos,D,x.x,
M,pos,*nn
Dra sensor depth values.
x.x - dra value
pos - transducer position (fwd, a, prt, str)
$GPZDA, Time and local time, e system will show UTC or Local
time if available in the message
$GPVTG GPS Speed
$GPGGA GPS time and Position
$GPGLL GPS time and Position
$--RMC Time, Position and speed
$--HDT Heading true
$--THS True heading and status
$--ROT Rate of turn
$--VBW Speed through water (STW) and speed over ground (SOG).
Longitudal+Transversal.
$IIDPT Depth from doppler speed log
$--SRP Identication
e Communications on NMEA are 4800, 8 data bits, 1 stop bit. Baud rate can be changed to 38400 or
115200