Deleting a Sync Mode
In the Plant Structure window, select a controller from the list.
On the Menu bar, select the Sync Mode tab. The workspace area shows a list of all the current sync modes.
For each Sync Mode to be deleted, mark the check box in the left most column in the workspace area.
Select the Manage command button, and then Delete from the drop-down list. The selected Sync Mode is removed and the list is updated.