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AVEVA™ Manufacturing Execution System 2023 R2

Split an event

  • Last UpdatedDec 02, 2025
  • 4 minute read

You can split an event so that the new event is added either before or after the original event that is being split.

For the event to be split into two events, either the utilization reason group:reason or the Comment entry must be different. Otherwise, the event will effectively not be split after saving the operation.

For example, if a Production:Idle event actually included some Setup:Operational Check time at the end of its duration, you could split the original event into two events, one Production:Idle and the other Setup:Operational. Or, if desired, you could split an event into two events that are assigned the same utilization group and reason but have different comments to provide unique descriptions of what occurred during the two similar events.

Split an event

  1. In the event grid, select the event to be split.

    The MES Operator Util/OEE tab showing how to select an event in order to split it.

  2. Click the SplitEventButton Split or Edit Event button.

    The Utilization Split dialog appears.

    The MES Operator Utilization Split dialog used split an event.

  3. Do one of the following:

    • To have the new event follow the original event (that is, occur later in time), click the SplitEventButtonNewEventFollows New Event Follows button.

    • To have the new event occur prior to the original event (that is, occur earlier in time), click the SplitEventButtonNewEventIsPrior New Event Prior button.

    The time chart at the top of the dialog shows the new and original events in the After row. The new event is outlined by a dashed box. The new event defaults to the same reason and comment as the original event.

    The MES Operator Utilization Split dialog showing an event that has been split with the new event following the original event.

  4. In the Utilization Reason tree, select the utilization reason for the new event.

    The utilization reason is assigned to the new event. By default, the durations of both events are half of the duration of the original event.

    The MES Operator Utilization Split dialog showing an event that has been split and the new event updated with a new utilization reason.

  5. Using the time controls, adjust the start or end time of the new event as needed:

    The MES Operator Utilization Split dialog time controls used to adjust the start or end time of the split event.

    • If the new event follows the original event, adjust the new event's start time.

      The end time of the original event will be adjusted automatically.

    • If the new event is prior to the original event, adjust the new event's end time.

      The start time of the original event will be adjusted automatically.

    The duration of the new event will change in the time chart.

    The MES Operator Utilization Split dialog showing an event that has been split with the new event following the original event.

  6. Optionally, edit the comment for the new event.

  7. Click the SplitEventSaveButton Save button.

    The dialog closes. The new event and the original event, with its duration adjusted, appear in the grid.

    The MES Operator Util/OEE tab highlighting an event that has been split in the event grid.

Clear the Split Operation

If you selected the wrong split operation or utilization reason for the new event and the dialog is still open, you can clear your selections by clicking the active Cancel button: CancelNewEventFollowsButton Cancel New Event Follows or CancelNewEventPriorButton] Cancel New Event Prior. You can then restart the procedure at step 3 above.

Automatic Merging of the New Event with a Similar Adjacent Event

Note that, if the new event has the same utilization reason as an existing event prior to or following it, the events will be merged.

For example, the following screen shows an original Setup:Operational Check event that is being split with a new Production:Idle event. The new event is adjacent to a prior Production:Idle event.

The MES Operator Utilization Split dialog showing a split event that will be automatically merged with the adjacent event because the utilization reason is the same.

In such a case, after clicking the SplitEventSaveButton Save button, a message appears explaining that the two adjacent events will be merged into one event:

The MES Operator Utilization Event Merge dialog used to confirm that adjacent events will be merged because they have the same utilization reason.

Note that the system can also be configured in MES Client such that the comments of the events being merged must also match to allow the merge to occur.

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