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6-5
Section
Operations in the System Installer Mode
120
•
If Return to Menu is selected, the NT21 returns to the System Installer mode
menu without clearing the system program.
•
If clearance fails, a screen asking whether you wish to try again is displayed.
On completion of system program clearance, the NT21 enters the standby sta-
tus for downloading of the system program.
On normal completion of system program clearance, the standby status for sys-
tem program downloading is automatically established.
When the NT21 enters this status, transmit
the system program from the system install-
er at the personal computer.
During downloading, the progress of trans-
mission is indicated on the screen.
Select Run System.
If Abort is selected during standby for downloading or during downloading, a
screen asking whether you wish to download again is displayed.
When the system program is started, the NT21 starts up normally. If no screen
data has been registered, an error message will be displayed indicating that
screen data hasn’t been registered. Transfer the screen data and proceed.
Reference: If the new system program is not downloaded successfully after deleting a sys-
tem program, it is not possible to use the NT21 at all. After deleting the system
program, be sure to download a new one.
6-5-3 Changing the System Settings
The NT21 allows the following settings to be made to prevent the screen data
and memory switch settings from being changed or deleted by operating errors.
Disabling/enabling System Menu Display
When System Menu display is disabled by this setting, the System Menu cannot
be displayed by touch panel operations or by using the touch switches. Howev-
er, if an error occurs, the System Menu can be displayed from the error message
screen.
Disabling/enabling Writing to the Screen Data Memory
When writing to the screen data memory is disabled by this setting, it is impossi-
ble to use the following System Menu functions. It is possible, however, to clear
the screen data in the system installer mode.
•
Switching to the Transmit mode
•
Displaying the memory switch setting screens
•
Checking the screen data memory
•
Displaying the initialization menu
Downloading the System
Program