Yokogawa Button Operated MV2000 - Manual (Page 139)

5-20
IM MV1000-17E
Alarm Summary
• The MV returns the alarm summary in response to an FL command.
• The MV retains a maximum of 1000 alarm events.
Alarm events that exceed 1000 are cleared from the oldest ones.
• Syntax
EACRLF
yy/mo/dd_hh:mm:ss_kkk_ccc_ls_nnnnnnnnnnCRLF
···································
ENCRLF
yy/mo/dd hh:mm:ss Time when the alarm occurred
yy Year ( 00 to 99)
mo Month ( 01 to 12)
dd Day ( 01 to 31)
hh Hour ( 00 to 23)
mm Minute ( 00 to 59)
ss Second ( 00 to 59)
kkk Alarm cause
OFF: Alarm release
ON: Alarm occurrence
ACK: Alarm acknowledge
ccc Measurement, computation, or external input channel number
l Alarm level (1 to 4)
s Alarm type (H, h, L, l, R, r, T, or t)
nnnnnnnnnn Alarm sequence
_ Space
For all-channel alarms, the channel number, alarm level, and alarm status items
are all set to asterisk.
• Example
EA
01/05/11 12:20:00 ON 001 1L
1
01/05/11 12:30:00 OFF 131 3t 2
01/05/11 12:31:00 OFF *** ** 2
01/05/11 12:32:00 ACK 4
EN
5.2 Text Data Output Format