405.1200.037.2 - Rel.: 2.21 of 25/02/2008
36-21
• One row for any data field (which in that particular situation could indi-
cate a safety or warning limit value).
• Indication in the bottom right-hand corner of the display of:
• Event appeared but not acknowledged; indicated by [!]
• Event appeared, present and acknowledged; indicated by [*]
• Event disappeared and not acknowledged; indicated by[#]
The second page has the following format:
• Numerical identification of the ISA-1A alarm.
• One row starting with the character [>] for the date and time of the
appearance of the event (Event appears).
• 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 disappeared but
not acknowledged.
Example with two alarms.
The character [!] indicates that the alarm has not yet been acknowledged.
The acknowledgment operation, pressing , changes the character sig-
nalling the status of the event to [*]:
When you press the second page appears:
When you press or the first page is appears again; by pressing
again you quit display mode for the ISA-1A alarms.
If, while displaying the first page of the alarm, you pressing , the next
Alarm n. 420
Pressure over the
First page of the first alarm
maximum limit
150.0 !
Ack
Ack
All
Alarm n. 420
Pressure over the
First page of the first alarm
maximum limit
150.0 *
Alarm
Alarm n. 420
>01-07-1998 11:32a
Second page of the first alarm
#01-07-1998 11:38a
Alarm
Esc
Clr
Esc
Clr
PgDn
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