Information about the display unit's backup memory (SRAM) capacity is shown here.
Capacity
Displays the specified display's backup memory (SRAM) capacity in KB.
Operation Log
Displays operation log usage.
Alarm Backup
Displays alarm history usage.
Sampling
Displays data sampling usage.
Backup Area
When backing up the display unit's internal devices, displays its usage.
Recipe
Displays the recipe (filing data) usage.
Total Size
Displays the total usage of all features in bytes.
Remaining Capacity
Displays the remaining capacity by the byte. If the total size exceeds the capacity, the value is displayed with a minus.