ACR Electronics ACR-AIS-300 Manual De Usuario
20 of 25
Y1-03-0222 Rev T4T4
5.7.1. ACS Message Format
!-- ACS,x,xxxxxxxxx, hhmmss.ss,xx,xx,xxxx*hh<CR><LF>
field 1 2 3 4 5 6
Field
Format
Description
1
x
Sequence Number , 0 to 9
2
xxxxxxxxx
MMSI of originator
3
hhmmss.ss
UTC of receipt of channel management information
4
xx
UTC Day, 01 -31
5
xx
UTC Month, 01 -12
6 xxxx UTC
Year
5.8 AIS Alarm Messages (NMEA 0183 ALR, Text)
Local alarm condition and status. This sentence is used to report an alarm condition on a device and its current
state of acknowledgement.
state of acknowledgement.
5.8.1
ALR message format
!--
ALR,hhmmss.ss,xxx,A,A,c--c*hh<CR><LF>
field 1 2 3 4 5
Field
Format
Description
1
x
hhmmss.ss = Time of alarm (UTC)
2
Unique alarm number
3
Alarm
condition
4
Alarm acknowledge state
5
alarm description, text
Alarms descriptions presented are:
Alarms descriptions presented are:
AIS: TX malfunction
AIS: Antenna VSWR exceeds limit
AIS: Rx channel 1 malfunction
AIS: Rx channel 2 malfunction
AIS: general failure
AIS: no sensor position in use
AIS: no valid SOG information
AIS: no valid COG information
AIS: 12V alarm
AIS: 5V alarm
AIS: Loss of serial interface integrity
AIS: Background noise above -77dBm
5.9
ACK messages
Can be generated by a minimum keypad and display (MKD) unit, chart plotter or other display device connected
to the NAUTICAST-B to acknowledge an alarm condition reported by the NAUTICAST-B.
5.9.1
ACK message format
!-- ACK,xxx*hh <CR><LF>
field 1
Field
Format
Description
1 x
unique
alarm
number