Chapter 10 MDC-1840BB/1841BB/1860BB/1810BB/1820BB Series
Technical Reference
Operation Manual
10-4
93142122-07
VDM
AIS Other Ship Data
! AI VDM, x, x, x, x, xxxxx
･･････････････････
xxxx, N *hh <CR><LF>
VDO
AIS Own Ship Data ( Not used )
! AI VDO, x, x, x, x, xxxxx
･･････････････････
xxxx, N *hh <CR><LF>
ALR Set
Alarm
State
$ - - ALR, xxxxxx.xx, xxx, A, A, c- -c*hh <CR><LF>
Sentence
format
Talker
device
Checksum
Start of
sentence
Total of
sentence.
Message part
(6bit field)
Sentence
number
Message
number.
Channel
number.
Fill bit.
Sentence
format
Talker
device
Checksum
Start of
sentence
Total of
sentence
Message part
(6bit field)
Sentence
number
Message
number
Channel
number
Fill bit
Sentence
format
Talker
device
Checksum
Start of
sentence
Alarm condition
(A = threshold exceeded)
(V = not exceeded)
Time of alarm condition
change, UTC
Local alarm
number
Alarm’s description text
Alarm’s acknowledge state
(A = acknowledge)
(V = unacknowledge)
