Japan Radio Co. JLN-740A, Instruction Manual

Page: 175 / 232

13-15 Chapter 13 Specification
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13
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■ ALR – Set alarm state
$VDALR, hhmmss.ss, xxx, A, A, c-c *hh<CR><LF>
1 2 3 4 5 6
1 : Time of alarm condition change, UTC
2 : Unique alarm number (identifier) at alarm source
3 : Alarm condition (A = threshold exceeded, V = not exceeded)
4 : Alarm’s acknowledge state, A = acknowledged, V =
unacknowledged
5 : Alarm’s description text
6 : Checksum
■ ALF – Alert sentence
$VDALF,x,x,x,hhmmss.ss,a,a,a,aaa,x.x,x.x,x.x,x,c---c*hh <CR><LF>
1 2 3 4 5 6 7 8 9 10 1112 13 14
1 :Total number of ALF sentences for this message, 1 to 2
2 : Sentence number, 1 to 2
3 : Sequential message identifier, 0 to 9
4 : Time of last change
5 : Alert category, A, B or C
6 : Alert priority, E, A, W or C
7 : Alert state, A, S, N, O, U or V
8 : Manufacturer mnemonic code
9 : Alert identifier
10 : Alert instance, 1 to 999999
11 : Revision counter, 1 to 99
12 : Escalation counter, 0 to 9
13 : Alert text
14 : Checksum
■ ALC – Cyclic alert list
$VDALC,xx,xx,xx,x.x,aaa,x.x,x.x,x.x,……,aaa,x.x,x.x,x.x*hh <CR><LF>
1 2 3 4 5 6 7 8 5 6 7 8 9
1 : Total number of sentences for this message, 01 to 99
2 : Sentence number, 01 to 99
3 : Sequential message identifier, 00 to 99
4 : Number of alert entries
5 : Manufacturer mnemonic code
6 : Alert identifier
7 : Alert instance
8 : Revision counter
9 : Checksum