Data stored in the internal device is cleared when turning OFF the display unit or when the display unit goes offline. You can use this function to back up the data in the user area.
Copies data stored in the internal device addresses user area to the backup 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.
Data stored in the internal device is cleared when turning OFF the display unit or when the display unit goes offline. You can use this function to back up the data in the user area.
Backup
Set whether or not to backup the display unit internal device.
Backs up the data stored in sequential addresses in the user area. Select the user area range from LS area or USR area. (System area or USR area for the memory link method.) You cannot back up multiple ranges. If you select the LS area in the direct access method, only one of the two user areas (red frame portion) is backed up. This holds true for selecting the system area in the memory link method.
Backup Start Address
Set the start address of the internal device to back up. Set the start address within the range to ensure the [Backup Area Size].
For direct access method, the start address should be specified within the range of LS20 to LS2031, LS2096 to LS8999, or USR0 to USR29999.
For memory link method, the start address should be specified within the range of 20 to 2031, 2096 to 8999, or USR0 to USR29999.
Backup Area Size
Set the internal device size to back up.
If the [Backup Start Address] + [Backup Area Size] exceeds the valid range of the internal device backup, the backup function will not work.
If LS area or Memory Link's system area is used, set from 1 to 6096. If USR area is used, set from 1 to 30,000.
Depending on the backup data capacity, screen display updates may become slower.
The internal device's backup size depends on the backup area size.
Calculation
16 + (4*1 × Backup Area Size)
For example:
Backup Start Address LS2096
Backup Area 6096
Calculation Result
(16) + (4×6096) = 24400 bytes (approximately 24 KB)
*1 The value is 4 for the LS device address and the memory link. The value is 2 for the USR device address. If the Backup Area Size is an odd number, add 1 to the value.