Please refer to the Settings Guide for details.
5.4.6 System Settings [Display Unit] - [System Area] Settings Guide
For more information about the System Data Area, please refer to the following.
A.1.1.2 System Data Area (Direct Access Method)
Turns OFF the screen display of a display unit from a device/PLC.
In the [Project] menu, click [System Settings] and then click [Display Unit]. Open the [System Area] tab.
In [System Area Device], select the device/PLC to assign system area to and specify [System Area Start Address].
Select the [Enable System Data Area] check box and confirm that the [Screen Display ON/OFF: (1 Word)] check box is selected.
Write "FFFFh" to the address displayed in [Screen Display ON/OFF: (1 Word)]. The display unit screen turns OFF.
To display the screen again, touch the screen once.