Mitsubishi Electric MELSEC iQ-R Series User Manual page 312

Backup data
Backup data is saved in an SD memory card. The following shows the folder structure of backup data.
/ Root directory
$MELPRJ$
No. Folder type
(1) Backup data folder
(2) CPU data folder
(3) Date folder
(4) Number folder
(5) Drive folder
(6) System file for backing
up CPU module data
(7) Backup data file for
backing up CPU
module data
22 CPU MODULE DATA BACKUP/RESTORATION FUNCTION
310
(1) (2)
Backup CPU
Folder name
Backup (Fixed)
CPU (Fixed)
*1
Automatically determined
Folder name format: YYYYMMDD
• YYYY: Year when the data was backed up
(four digits)
• MM: Month when the data was backed up
(two digits)
• DD: Day when the data was backed up
(two digits)
*1
Automatically determined
Folder name: Sequentially numbered from
00001 to 32767 (five digits)
Drive0 (Fixed), Drive3 (Fixed), and Drive4
(Fixed)
$BKUP_CPU_INF.BSC
BKUP_CPU.BKD
(3) (4)
20160101 00001
00002
20160102
$BKUP_CPU_SWRSTR.BSC
Number of
storable folders
1
1
Depends on the
capacity of the SD
memory card used
or 1 to 100 folders
Depends on the
capacity of the SD
memory card used
One set of the
folders in a number
folder
One folder in a
number folder
One folder in a
number folder
(5)
Drive0
Drive3
Drive4 $MELPRJ$
$BKUP_CPU_INF.BSC
BKUP_CPU.BKD
BKUP_CPU_DEVLAB.BKD
(9)
Description
A folder for storing all backup data
A folder for storing backup data of the CPU module
Folders for storing backup data by date
For the setting of the upper limit value for the number
*2
of CPU module backup data, the number of backup
data indicates the number of date folders. ( Page
314 Setting the upper limit value for the number of
CPU module backup data)
Folders for storing information per backup data. Each
backup data created on a date is stored in sequentially
*2
numbered folders.
Folders for storing folders/files stored in each drive of
the backup target CPU module by each drive
Files for storing the information required at restoration
of data, such as a list of backup data and identification
information of the CPU module
The following data is stored.
• Data on operations of the data logging setting
• Data for restarting the SFC program from the block
and step where the processing was stopped
MAIN.PRG
FB.PFB
FILEREG.QDR
LOGCOM.QLG
MAIN.PRG
MEMDUMP.DPS
(6)
(7)
(8)