Task Manager Task
The task manager is where you specify the maximum number of data objects that your application will require. You may have up to 10,000 objects. Reducing the number to something closer to what you will actually use will improve efficiency of the system.
The persistent data update rate specifies how frequently persistent data objects are stored to Flash memory. The reason one might want to set this to as long a period as you can tolerate is to extend the life of the Flash memory, which has a finite number of write cycles in its lifetime. The flash technology does include automatic wear leveling, but it is still good practice to not rewrite flash any more often than necessary.
The XML file for the task manager is where all of the task configuration settings are retained when you click the Save XML button. These settings are always retained in the internal database, but for purposes of creating a backup of your overall task configuration, save the XML file and export to your PC.