4. Operation 36
٧Alarm output
$SDALR,hhmmss.ss
,xxx,A,A,c--c*hh<CR><LF>
㩷 (1) 㩷 (2) (3)(4)(5) (6)
(1) Time of alarm condition change,UTC
(2) ID number of the alarm source
㩷㩷351 primary depth alarm
㩷㩷352 secondary depth alarm
㩷㩷353 primary depth lost
㩷㩷354 secondary depth lost
㩷㩷356 printer paper is not good
㩷㩷357 printer connection is not good
㩷㩷360 primary transmit signal is not good
㩷㩷361 primary receive signal is not good
㩷㩷362 primary bottom echo signal is not good
㩷㩷363 secondary transmit signal is not good
㩷㩷364 secondary receive signal is not good
㩷㩷365 secondary bottom echo signal is not good
㩷㩷366 backup data area is not good
(3) Alarm condition (A = threshold exceeded, V = not exceeded)
(4) Alarm's acknowledge state (A = acknowledged, V = unacknowledged)
(5) Alarm's description text
(6)Checksum (result after each ASCII code of every character between"S" just after"$" and
㩷㩷"X" just before " * " is EXORed.)