User`s guide

Table Of Contents
Alarm Management
164 Mitsubishi Electric, MA00759F
8.6 Alarms in the Operator Panel
In graphic blocks a bell flashes in the upper-right corner of the display when an alarm
is activated. Indication can be deselected by right-clicking the Alarms folder and se-
lecting Properties in the Project Manager.
Alarms are presented in an alarm list with predefined alarm texts. The alarm list
contains the latest alarms and is arranged in alarm group order according to defini-
tion, so that the latest alarms are shown at the top of the list. Each alarm is presented
on one row in the alarm list. To allow alarms using two rows in the list, the command
ALDR can be used. Select Setup/System Signals and type ALDR on the Commands
line.
The size of the alarm list is determined by right-clicking the Alarms folder and se-
lecting Properties in the Project Manager. If there is a jump to an alarm block (system
block no. 990), the alarm list will be shown.
The number of times the alarm has been generated (if selected), the status of the
alarm, the time it was activated, became inactive or was acknowledged, is shown for
every alarm, depending on the chosen display format.
Even if all of these parameters are not chosen for display in the alarm list, the infor-
mation can be presented by configuring a function/touch key for this purpose. Select
Shows object info under Other functions to configure the function key. Then select
an alarm in the list. When the function key is pressed the first time, the time the
alarm occurred is displayed. The following times the key is pressed, the time of ac-
knowledgement and when the alarm became inactive is shown. See section Function
Keys for further information about configuring function/touch keys.
The counter for the alarm in the alarm list is displayed according the following table,
provided that the box Repeat count is checked for the alarm in the Alarms dialog.
Display format Explanation
(12) Means that the alarm has been generated 12 times. The alarm must
be acknowledged for it to be presented as a new alarm message in
the alarm list.
>999) Means that the alarm has been generated more than 999 times
without being acknowledged. The counter counts to a maximum of
999 alarms.