Rockwell Automation FactoryTalk View Machine Edition Users Guide - Manual (Page 160)

F ACTORY T ALK V IEW M ACHINE E DITION U SER ’ S G UIDE
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Clear and delete messages
From the alarm history
When the operator presses the clear alarm history button, all alarms in the system (or,
optionally, for a specific alarm trigger) are deleted from the alarm log file and from all
alarm lists. For information about the alarm log file, see page 9-10.
If the Ack connection is assigned for any of the alarm triggers being cleared, the operator
is prompted to acknowledge the unacknowledged messages before deleting them. If the
operator chooses to acknowledge the alarms, the “Acknowledge all” value (if any) is sent
to the Ack connection before deleting the messages. If the Ack connection is not assigned,
or if the operator chooses not to acknowledge alarms, all messages are deleted
immediately.
From the alarm banner
When the operator presses the clear alarm banner button, the shown alarm is cleared from
the banner. The alarm remains in the alarm log file and in all alarm lists it appears in.
Use alarm buttons to sort alarms and reset alarm status
Sort alarms
When the operator presses the sort alarms button, the sort order toggles from time to
trigger value or from trigger value to time. The sort order applies to all alarms in all alarm
lists and in the alarm log file.
Reset alarm status
When the operator presses the reset alarm status button, the alarm status of each alarm is
reset as follows:
 The accumulated time an alarm has been in alarm is reset to 0. If the alarm is still
active, the time begins accumulating again.
 The number of times the alarm has been triggered is reset to 0. If the alarm is still
active, the number changes to 1.
If the Status Reset connection is assigned (in the Alarm Setup editor), it is set to 1 for the
hold time or for the duration of the button press, whichever is longer. If a hold time from a
previous reset alarm status button press is still in effect, the button press is ignored.
Pressing the clear alarm history button can also reset the status of alarms, if you select the
Reset alarm status option for the button. You can set the button up to clear and reset the
status of all alarms, or just the alarms for a specific alarm trigger.