5.1.2 Perform System Initialization (2)
When you press <2> to select this option, all parameters and register values are reset to those
stored in the NVRAM Boot Parameter File on the CALS Board. The Main Menu then returns.
5.1.3 Parameter Backup (3)
This option, <3>, provides a safe storage location in NVRAM on the CALS Board for the
factory-set or permanent parameter file values. It is accessible only through the local control
terminal. Should the boot parameter file become corrupted, this backup parameter file can be
used to restore the original values.
Should the customer's application require or benefit from permanent changes in their boot
parameter file, this option also allows the values in the backup locations to be replaced.
----- PARAMETER BACKUP -----
!===========! !===========!
! Backup ! ! Boot !
! Parameter ! <-------- ! Parameter !
! File ! ! File !
!===========! !===========!
D : SET DIRECTION T : START TRANSFER X : EXIT
S : SAVE CURRENT SETUP TO BOOT FILE
Figure 5-10 Parameter Backup Menu
Figure 5-10 illustrates the menu for the parameter backup option. The direction of the
operation being carried out is indicated graphically.
The arrow between the two boxes represents the direction of the transfer -- from the backup
location to the boot up location or from the boot up location to the backup location. The
direction of transfer is changed by toggling with the <D> key. Once the desired direction is
set, press <T> to begin the transfer. When the transfer is complete, or if you wish to abort the
operation before pressing <T>, press <X> to exit back to the Diagnostic Tests menu. The <S>
command allows current system parameters to be saved to the boot parameter file prior to
backup. This has the same effect as the Save command described in section 5.2. The write
protect switch on the CALS Board must always be set to "Write Enable".
CAUTION: Changing the contents of the backup parameter storage locations should be
performed only by an authorized technician. Further, if alteration is necessary, as a
precaution, power the scanner off and then on again to reset all the current parameter
values. Then change only those which need changing. Then commit them to the backup
memory. This will prevent other values being inadvertently changed.
