Example:
Confirms that contact closure #1 has been closed
$IIXDR,S,1,,20;172.30.41.9*FF<CR><LF>
As per NMEA 0183, the <u> field is left empty for digital I/Os, including ignition sense (switches and valves, <t> field
value: S).
ALR Message
Vanguard 3000-generated alarms and indications (manager <-- Vanguard 3000)
$IIALR,hhmmss.ss,xxx,c,s,ip;uid;txt*hh<CR><LF>
hhmmss.ss: NMEA-compliant time (UTC) of initial condition change
xxx: ASCII-encoded hex target descriptor,
composed of three fields <F1><F2><F3>
<F1> Type of alarm message
0
Original message for a given alarm
1
Repetition of an event already reported
2-F
Reserved for future use
<F2> Class of I/O being operated on
0
Digital input
1
Analog input
2
Digital output (contact closure)
3-F
Reserved for future use
<F3> I/O Channel number
Digital Inputs (when <F2> is 0)
0
Ignition sense
1
DIN1
2
DIN2
3-F
Reserved for future use
Analog Input (when <F2> is 1)
0
Vanguard 3000 input voltage sense
1
Board/Cell module temperature sense
2
AIN1
3
AIN2
4-F
Reserved for future use
Relay Output (when <F2> is 2)
0
DO1 (COM1/NO1)
1
DO2 (COM1/NO1)
2-F
Reserved for Future use
c:
NMEA-compliant alarm condition
A = Threshold exceeded (alarm is active)
V = Threshold not exceeded (indication of return to normal state)
s:
NMEA-compliant alarm's acknowledge state
V = unacknowledged
ip:
User-specified IP address (as configured via the Vanguard Web Interface)
Vanguard 3000 Series Multicarrier Cellular Data Modem & IP Router PN 001-7300-100 Rev. B
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