Make sure the CF/SD Card free space is greater than the backup memory (SRAM) size. When there is no free space, the backup process will not start.
While running [SRAM Auto Backup], the save functions to CF Card/SD Card will not run (such as sampling's save in CSV or [Save Data] from the [System Settings], [Display Unit], [Mode] tab). These processes will run once backup is complete.
When [SRAM Auto Backup] is run while a sampling group is saving to CSV (automatic save), or while saving log data using [Save Data] ([System Settings], [Display Unit], [Mode] tab), until the backup is complete, writing to the CF Card/SD Card is paused.
When [SRAM Auto Backup] is run while processes other than a sampling group's save to CSV (automatic save) or [Save Data]'s automatic save of logging data, the backup process will start only after writing to the CF Card/SD Card is complete.
You can save only one backup file in a CF card/SD card. When backup data already exists on a CF/SD card, the file is overwritten.
In the offline mode's [Transfer] menu, select [Transfer from CF to SRAM] (or [Transfer from SD to SRAM) to return backup data in the CF Card/SD Card to the display unit.
M.17.7.2 Transfer - Transfer from CF to SRAM / Transfer from SD to SRAM