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Operations in the System Installer Mode Section 6-5
Reference: If the new system program is not downloaded successfully after deleting a sys-
tem program, it is not possible to use the NT31/NT31C at all. After deleting the
system program, be sure to download a new one.
6-5-3 Changing the System Settings
The NT31/NT31C 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 can-
not be displayed by touch panel operations or by using the touch switches.
However, if a 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
impossible to use the following System Menu functions.
• Switching to the Transmit mode
• Displaying the memory switch setting screens
• Checking the screen data memory
• Displaying the initialization menu
• Displaying the calendar/time setting screen (the calendar/time display
screen can be displayed)
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