![background image](http://html.mh-extra.com/html/omron/nt21/nt21_setup-manual_744541132.webp)
6-5
Section
Operations in the System Installer Mode
121
Change the system settings by following the menu operation from the System
Installer mode menu shown below.
Select Change System Settings.
Select Display System Menu or Screen
Memory Protect .
Each time either of these items is selected,
the setting switches from Disabled to En-
abled or vice versa.
Select OK.
The settings are written to the NT21 while
the screen is displayed.
•
If Cancel is selected, the NT21 returns to the System Installer mode menu
without changing the settings. The settings remain as they were before the op-
eration was started.
•
If writing of the settings fails, a screen asking whether you wish to try again is
displayed.
After the settings have been written, the System Installer mode menu screen is
redisplayed.
6-5-4 Clearing Screen Data
If the screen data has been corrupted and the NT21 cannot be started normally,
use this function to clear the screen data.
Note that only the screen data is cleared (initialized); the memory switch set-
tings, display history record data, alarm history record data, and recipe data are
retained.
Reference:
S
When this function is used, all of the screen data contents registered in the
NT21 up to that point are cleared. Check that the created screens are backed
up at the NT Support Tool before using it.
S
The screen data can also be cleared from the System Menu (page 110).
S
If the screen data is cleared in the System Installer mode, the message Screen
Data Corrupted may be displayed on switching to the RUN mode. If this hap-
pens, initialize the screen data again from the MEMORY INIT. MENU screen.