The backup functions are executed as a system service. This means that if you perform a
backup or verification operation in RUN mode, it may take time for the operation to be completed.
If you perform a backup or verification operation in RUN mode, make sure that the sufficient exe-
cution time is allocated for the system service. You can reduce the processing time by perform-
ing the system service in PROGRAM mode.
Different types of backup functions handle data for different data groups. The relation between the dif-
ferent types of backup functions and data groups is given in the following table.
(OK: Applicable, NA: Not applicable)
*1 The backup data is processed only for the present values of variables that are specified for retention with the
Retain attribute.
*2 The backup data is processed only for the present values of addresses that are specified for retention with the
Retain attribute in the memory for CJ-series Units.
*3 For all of the data groups except for the user program and setting group, only the items that are specified to be
restored in the restore command file are restored.
*4 Of the user program and setting data groups, the Data Trace Settings are not compared.
*5 For all of the data groups except for the user program and setting group, only the items that are specified to be
transferred in the automatic transfer command file are transferred.
*6 If the CJ-series Units are specified for backup, the parameters in the CJ-series Units are backed up. If the
EtherCAT slaves are specified for the backup, parameters for the EtherCAT slaves are backed up.
9-1-5 Relation Between the Different Types of Backup Functions and
Data Groups
Type of backup function
Data group
User pro-
gram and
settings
Present val-
ues of vari-
ables
Present val-
ues of mem-
ory used for
CJ-series
Units
Units and
slaves set-
tings
Absolute
encoder
home off-
sets
SD Memory
Card backups
Backing up
data
OK
OK
*1
OK
*2
OK OK
Restoring
data
*3
OK
OK
*1
OK
*2
OK OK
Verifying data
*3
OK
*4
NA NA OK NA
Automatic transfers from SD
Memory Cards
*5
OK
OK
*1
OK
*2
NA NA
Sysmac Studio
Controller back-
ups
Backing up
data
OK
OK
*1
OK
*2
OK
*6
OK
Restoring data OK
OK
*1
OK
*2
OK
*6
OK
Verifying data
OK
*4
NA NA
OK
*6
NA
Importing and
exporting
Sysmac Studio
backup file data
Exporting
backup file
data
OK
*7
NA NA NA NA
Importing
backup file
data
OK
*7
NA NA OK NA
Sysmac Studio
variable and
memory backup
functions
Backing up and
restoring data
NA
OK
*1
OK
*2
NA OK
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