
CVR–010
Installation Instructions
(continued on next page)
89
13.3.4.4.
Navigational Output Data Sentences
Realtime Depth Output Data
(1/2)
・
The following IEC 61162 – 1 / NMEA–0183 formatted depth data sentences can be
output in real time at 4800 baud simultaneously via all serial interface ports (rear–panel
RS–422–A/B
and
I/O
connectors).
・
No hand–shaking protocol is used to control data transfer.
・
Some of the outputs are initially disabled
. Refer to the relevant instructions given
in paragraph 8.11 (Selecting Data Outputs) to enable the desired outputs to become
available through the above interface ports.
・
Alarm–related outputs cannot be disabled.
1. $SDDPT (depth with transducer draft or keel offset)
$SDDPT
,
x
.
x
,
x
.
x
,
x
.
x
*
h h
< CR > < LF >
①
②
③
④
①
Depth below transducer, in meters
②
Positive value represents transducer draft (transducer to waterline, in meters), and
negative value represents keel offset (transducer to keel, in meters)
③
Range scale in use
④
Checksum
2. $PSKPDPT (proprietary depth data for
SKIPPER IR 301
digital depth repeater
)
$PSKPDPT
,
x
.
x
,
x
.
x
,
x
.
x
, , ,
FWD
*
h h
< CR > < LF >
①
②
③
④
⑤
⑥
①
Depth below transducer, in meters
②
Positive value represents transducer draft (transducer to waterline, in meters), and
negative value represents keel offset (transducer to keel, in meters)
③
Range scale in use
④
Null
fields
(E/S channel number, bottom echo strength, etc. are not output)
⑤
Transducer location; FW D = forward, A F T= aft, MID
*
1
= middle
⑥
Checksum
*
1
:
Not supported by SKIPPER IR 301
.
See NOTES below.
NOTES:
(1)
Depth output data ( $ PSKPDPT ) required for depth–indicating operation of the IR 301 is initially
disabled. Be sure to turn the output (abbreviated “ PSKDPT ” on the menu) on via the procedure given
in paragraph 8.11 when that remote unit is plugged into the rear–panel I/O connector.
(2)
The I R 301 has only two transducer location indicator LEDs ( forward and aft) on its display. When
your system has one transducer mounted in the middle of the hull, the output includes location data
“ MID ” in its string, which is not supported by the IR 301. Therefore the position of the selected
transducer, when installed in the middle, will not be
indicated on
the
IR 301
.
See
paragraph 13.3.4.2
for data format information.
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