Appendix-29
・ALR – Set alarm state
$--ALR,hhmmss.ss,xxx,A, A,c--c*hh<CR><LF>
1
2 3 4 5
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