User's Manual

14 Chapter 4: Before You Start
XL8 Control Centre
Quick Reference Guide
Although the state of the control centre is copied every five seconds, it is not stored
in a scene. Instead, it is placed in the NVRAM (non-volatile random access memory)
of the control centre’s memory, which is a type of RAM that doesn't lose its data
when the power goes off. If the control centre loses power accidentally, these
settings are loaded so that audio parameters are identical, thus avoiding audio level
jumps. When power is lost, the showfile loaded (if any) will not
subsequently be restored, and any unsaved changes to it will be lost.
• Saving a show copies the show file onto the internal solid-state disk of the XL8.
This provides you with a ‘permanent’ copy, provided you shut down the system
properly as detailed in the following section.
Shutting down the XL8 Control Centre properly
When switching off the XL8 Control Centre, we recommend that you use the shutdown
option of the GUI menu (see “To switch off the XL8 Control Centre” on page 68).
By using shutdown, the cached copy of the show data, which is maintained by the
system, is automatically stored. Shutdown then uses the current showfile, NVRAM data
and cache files to restore the XL8 Control Centre to exactly the same state as at power
down; even to the point of loading the unsaved show and placing you at the correct
scene, with non-stored scene data at the control surface.
If you don’t use the Shutdown option the audio parameters are still restored, but the
show and show status (saved/unsaved) cannot be restored automatically. You must
manually reload the show and any unsaved changes will be lost.