Operator Terminal System Manual - 11276916.pdf

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Unit Functions
8 Alarm handling
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Alarm settings All alarms (start I/O to end I/O) that are imported by clicking the Import button will have
the settings you have specified under Alarm settings in the Alarm Import dialog. For a
description of the individual parameters, refer to section "Alarm message" on page 181.
You have to specify the parameters, signal type, analog or digital, and the alarm group
before importing the alarm.
Alarms in run
mode
In the text block, an alarm is signaled by "ALARM" appearing in the top right corner of
the screen. In the graphic block, an alarm is signaled by a blinking clock in the top right
corner of the screen. You can disable alarm signaling in configuration mode or in the
programming software under [Setup] / [Alarm settings].
Alarms are displayed in an alarm list with predefined alarm texts. The alarm list includes
the last triggered alarms and is sorted by the defined alarm groups. The alarm triggered
last is displayed first in the list. You can define the alarm list size in kB in configuration
mode under [Setup] / [Alarm settings] in HMI-Builder. Jumping to the alarm block (system
block no. 990) will display the alarm list.
The following information is displayed in the selected display format for each alarm:
Number of times the alarms were triggered (if selected)
Alarm status
Time when the alarm was triggered
Deactivation
Acknowledgement
The repeat counter in the alarm list (if enabled) is displayed as follows:
Display format Description
(12) Means the alarm was issued twelve times. The alarm must be acknowledged to
enable the alarm to appear in the list as new alarm message.
>999) Means the alarm was issued more than 999 times without having been acknowledged.
The counter counts up to maximum 999 values.
An alarm can have one of the following states:
Symbol Status
* Active, not acknowledged
$ Not active, not acknowledged
– Active, acknowledged
Not active, acknowledged
188 System Manual – DOP11A Operator Terminals