LS ELECTRIC eXP2 Series, User Manual, Page: 78 / 129

Chapter 9 File Backup through External Storage Equipment
9-5
9.2 Operation setting when there is no space for backup
You can designate in the XP-Builder whether to cancel the backup or delete the oldest backup file and execute
backup when there is no space in the storage equipment.
[Project Property Setting -> Storage Settings -> Backup Storage -> Delete old file if disk full]
1. In case of backup, deleting the oldest data
(1) In case there is no space for backup, searches the oldest year, month directory under Logging, Recipe,
Screen Image. (But in case of Logging, finds under Logging number directory. That is, when executing
backup about Logging number 2, in case there is no backup data in Logging number 2 directory and there
is data only in logging number 1, data of logging number 1 is not searched/deleted.)
(2) Searches the oldest day directory under the oldest year, month directory.
(3) Searches the oldest hour directory under the oldest day directory.
(4) Deletes the oldest backup file under the oldest hour directory.
(5) Checks the space and if more space is necessary, the above steps of (1) ~ (4) are repeated and checks
the space.
(6) When deleting file, in case all data in time directory are deleted, relevant hour directory is deleted.
(7) When deleting hour directory, in case all hour directories in day directory are deleted, relevant hour
directory is deleted.
(8) When deleting day directory, in case all day directories in year, month directory are deleted, relevant year,
month directory is deleted.
Remark
(1) In unknown directory or file (user file or directory), searches the oldest thing among normal backup files
except unknown directory or file.
(2) In case there is nothing except user data in now searched directory, backup operation fails. XGT Panel
can’t delete user data, at this point, operation stops.