Data Engine Task
There is really not much to configure for the Data Engine, but if you have exported a collection of data objects from another IoTServer and wish to replicate that collection, here is where you can import a file containing the configuration of those objects.
Activity timeout is a form of watchdog. If the task manager does not see the Data Engine update its activity indicator within this amount of time, the task manager will restart the Data Engine. The task manager itself is restarted by the Linux cron if it stops responding.