Please refer to the Settings
Guide for details.
5.4.6 System Settings [Display Unit] - [System Area] Settings Guide
A.1.1.2 System Data Area (Direct Access Method) or A.1.2.2 System Data Area (Memory Link)
In the [Project] menu, click [System Settings] and then click [Display Unit]. Open the [System Area] tab.
In [System Area] tab, from [System Area Device] list, select the device/PLC to allocate the system data area.
Designate the start address of the system area in [System Area Start Address] and select the [Enable System Data Area] check box.
Select the [Control:(1 Word)] check box.
If you turn ON Bit 1 in the [Control: (1 Word)] address
specified while Bit 5 is OFF, the contact to sound an external buzzer
turns ON. You can then connect and operate an external power supply and
a buzzer or revolving light.