Interphace ULTRASCAN PC90, Operation Manual, Page: 37 / 56

37
sentences begin with a dollar sign followed by the
two-character talker identification followed by the
three-character sentence type. The talker
identification for Ultrascan PC90 is SS, for
scanning sonar. Data fields in the sentences are
comma-delimited and the sentences end with a star
followed by the checksum. Ultrascan PC90 uses the
following three sentence types:
DPT - Depth with Keel Offset. This sentence
includes the water depth, in meters, relative to the
transducer followed by the offset from the
transducer in meters.
DBT - Depth Below Transducer. This sentence
includes the water depth in feet; the water depth in
meters and the water depth in fathoms, all
referenced to the transducer.
ZDA - Time and Date. This sentence includes, the
Universal Time Coordinated (UTC), the day, the
month, and the year, all in UTC, and the local zone
hours and minutes (Atlantic Standard Time is local
zone 05 hours, 00 minutes).
Once you have selected the depth log format, select
a depth log frequency interval in seconds. If the
frequency is set at 5, Ultrascan PC90 will log the
depth every 5 seconds. Ultrascan PC90 will always
log the depth to a file named with the current local
date (year month day) and a file extension of .dep
(e.g.
20100401.dep
). By default, the file will be
saved in the Ultrascan\Data directory
(
D:\Program Files\UltrascanPC90
\Data\
).
2010/03/31 16:43:29.01 12.2 ft.
Year
Month Depth
Day
Hour Units
Minute
ASCII Depth Format
20100401.dep
Year
Month
Day
Depth file extension
Depth Log
File Name Format
$SSDPT,4.2,0.0*46
Water Depth (m)
Keel Offset (m)
Checksum
NMEA Sentence Formats
$SSDBT,13.0,f,4.0,M,2.2,F*27
Depth in feet
Depth in meters
Depth in fathoms
Checksum
$SSZDA,004635.18,01,04,2010,08,00*79
UTC (hhmmss.ss)
Day (UTC)
Month (UTC)
Year (UTC)
Local zone hours
Local zone minutes
Checksum