Acr-electronics Nauticast Y1-03-0222 Instrukcja Użytkownika Pobierz pdf (Strona 27)

Y1-03-0222 Rev. C

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.

ALR message format

!-- ALR,hhmmss.ss,xxx,A,A,c--c*hh<CR><LF>

field 1 2 3 4 5

Field

Format

Description

hhmmss.ss = Time of alarm (UTC)

Unique alarm number

Alarm condition

Alarm acknowledge state

Alarm description, text

Alarm 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

9. ACK messages

An Acknowledge Message (ACK) 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.

ACK message format

!-- ACK,xxx*hh <CR><LF>

field 1

Field

Format

Description

unique alarm number

1 2 ... 22 23 24 25 26 27 28 29 30 31 32

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Acr-electronics Nauticast Y1-03-0222 Instrukcja Użytkownika Strona 27