Event Type
Overview
Events can be the following types:
-
Occurrence/completion (Entry/Exit): Events which have a defined beginning and end, representing the beginning or end of a system state. The occurrence and completion are both time-stamped and logged in a history. For example, Manual mode enabled is an occurrence/completion event.
-
Instantaneous (Pulse): Events with no duration. Only the occurrence of the event is time-stamped and logged in a history. For example, the reception of an opening order, a change to settings, or a circuit breaker trip are instantaneous events.
The event type cannot be customized.
Event Status Definition
The status of an event is active, inactive, or held. It depends on the event type and latch mode. The status of all events can be consulted at any time.
Latch Mode
An event can be unlatched or latched:
-
Unlatched: The event status is active while the cause of the event is present. It automatically returns to inactive when the cause of the event disappears or is resolved.
-
Latched: The event status does not automatically return to inactive when the cause of the event disappears or is resolved. It stays in the held state until it is reset by the user.
The latch mode of certain events can be customized through EcoStruxure Power Commission software.
Unlatched Occurrence/Completion Events
Latched Occurrence/Completion Events
The following graph shows the event status for a latched occurrence/completion event:
A Event inactive
B Event active
C Event held
1 Event occurrence: event is time stamped, logged in a history and notified, depending on severity
2 Event completion: event is time stamped and logged in a history
3 Event reset: reset command is time stamped and logged in operation history. All held events are reset.
The following graph shows the event status for a latched event where a reset is attempted before completion of the event:
A Event inactive
B Event active
C Event held
1 Event occurrence: event is time stamped, logged in a history and notified, depending on severity
2 Event reset: reset command is time-stamped and logged in the operation history but has no effect on MicroLogic Active event 1 as external event is not completed
3 Event completion: event is time stamped and logged in a history
4 Event reset: reset command is time stamped and logged in the operation history. All held events are reset.
The following graph shows the event status for a latched, recurring occurrence/completion event:
A Event inactive
B Event active
C Event held
1 Event occurrence: event is time stamped, logged in a history and notified, depending on severity
2 Event completion: event is time stamped and logged in a history
3 Event reset: reset command is time stamped and logged in the operation history. All held events are reset.
Unlatched Instantaneous Events
Latched Instantaneous Events
The following graph shows the event status for a latched instantaneous event:
A Event inactive
C Event held
1 Event occurrence: event is time stamped, logged in a history and notified, depending on severity
2 Event reset: reset command is time stamped and logged in the operation history. All held events are reset.
The following graph shows the event status for a latched, recurring instantaneous event:
A Event inactive
C Event held
1 Event occurrence: event is time stamped, logged in a history and notified, depending on severity
2 Event reset: reset command is time stamped and logged in the operation history. All held events are reset.
Resetting Latched Trip Events
Latched trip events can be reset by pressing the button on the front of the MicroLogic Active control unit for 3–15 seconds, and then releasing
the
button.
Reset commands do not target specific trip events. All held trip event states managed by the MicroLogic Active control unit are reset, and all trip cause LEDs are cleared.
The reset command generates the following event:
|
Code |
Event |
History |
Severity |
|---|---|---|---|
|
0x1307 (4871) |
Alarm reset |
Operation |
Low |