5.4.4.3 Display Unit [Mode] - Backup Internal Device

Copies data stored in the internal device addresses user area to the backup memory (SRAM). If you specified the Backup Internal Device, the display unit will retain data stored in the internal device address when powering off the display unit.

Backup

Set whether or not to backup the display unit internal device. The area for backup is as follows.

Direct Access Method: User area within LS area and the entire USR area

Memory Link Method: User area within the system area and the entire USR area

Backs up data stored in consecutive addresses. For example, if you select the LS area in the Direct Access method, only one of the two user areas (the red frame portion in the diagram) is backed up. This holds true for selecting the system area in the memory link method.

For more details about communication methods (Direct Access Method and Memory Link Method), please refer to the following.
2.4.1 Minimizing the Load for Device/PLC Communication (Direct Access)
2.4.2 Communicating with Unsupported Device/PLC (Memory Link)
Refer to the following for details on the internal device.
A.1 Internal Device

Backup Start Address

Set the start address of the internal device to back up. Set the start address so you can ensure the range of [Consecutive Addresses].

Direct Access method start address setting range

[#INTERNAL] - [LS] :LS20 to LS2031

[#INTERNAL] - [LS] : LS2096 to 8999,

[#INTERNAL] - [USR] : USR0 to USR29999

Memory Link method start address setting range

[#MEMLINK] : 20 to 2031

[#MEMLINK] : 2096 to 8999

[#INTERNAL] - [USR] : USR0 to USR29999

Consecutive Addresses

Set the internal device size to back up.

If the [Backup Start Address] + [Consecutive Addresses] exceeds the valid range of the internal device backup, the backup function will not work.

If the LS area or Memory Link's system area is used, set from 1 to 6904. If USR area is used, set from 1 to 30,000.
Depending on the backup data capacity, screen display updates may become slower.