405.1200.037.2 - Rel.: 2.21 of 25/02/2008
37-27
Vertical
VT1x5W
alarms
The page has the following format:
• Numerical identification of the ISA-1A alarm.
• Five rows of 21 characters with character height of X1 or three rows of
10 with character height of X2 for the text of the message.
• One row for any data field (which in that particular situation could indi-
cate a safety or warning limit value).
• One row starting with the character [>] for the date and time of the
appearance of the event (Event in).
• One row starting with:
• the character [#] for the date and time of the Event acknowledged
but still present.
• the character [<] for the date and time of the Event out but not
acknowledged.
• Graphic indication of the status of the alarm:
• Event in and not acknowledged [ ]
• Event in, present and acknowledged [ ]
• Event out and not acknowledged. [ ]
Examples with three alarms:
HELP
The pressure in
the tank exceeds
the max. limit
150.0
First
alarm
>01-07-1998 11:32a
ESC
When you press [ ] the next page appears con-
taining the second alarm. Note that the second
alarm is accompanied by the character [<] fol-
lowed by the date and time, indicating that the
event triggering the alarm disappeared before
the acknowledgment operation. All this is also
emphasized by the appropriate symbol.
0001
HIST
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