9 Backup Functions
9-30
NJ-series CPU Unit Software User’s Manual (W501)
The data in a backup file in the specified directory on the computer is transferred to the Controller. This
operation can only be performed in PROGRAM mode.
• The data in a backup file in the specified directory on the computer is transferred to the Controller.
• You can select the data groups to restore from the Sysmac Studio. The conditions for restoring the
data are given in the following table.
• If an error occurs in the checks that are performed before starting to restore the data, the previous
data will be retained in the Controller.
• If the power supply to the Controller is interrupted while the data is being restored, a User Pro-
gram/Controller Configurations and Setup Transfer Error (a major fault level Controller error) will
occur. If that occurs, the data in the Controller is not dependable. Use one of the following methods to
clear the error.
• Perform the restore operation again.
• Clear all of memory and then download the project from the Sysmac Studio.
• If the present values of variables that are set to be retained (with the Retain attribute) are not set to
be restored, the previous present values of those variables will be retained. However, the values of
any variables that do not meet the retain conditions are initialized. These are the retain conditions for
the variable:
• The variable name, data type name, and data type size must be the same before and after restor-
ing the data.
• Cycle the power supply to all of the EtherCAT slaves after you restore data.
1
Select Backup • Restore Controller from the Tools Menu on the Sysmac Studio.
2
Specify the folder that contains the backup file and restore command file.
3
Click the Execute Button on the Restoration Confirmation Dialog Box.
The restoration operation is executed.
9-5-2 Restore (Computer to Controller)
Processing Contents
Data group Restoring condition
User program and settings The CPU Unit must be selected.
Present values of variables The present values of variables that are specified for retention with the
Retain attribute must be selected.
Present values of memory used
for CJ-series Units
The present values of memory used for CJ-series Units that are specified
for retention with the Retain attribute must be selected.
Units and slaves settings The CJ-series Units and EtherCAT slaves must be selected.
Absolute encoder home offsets The absolute encoder home offsets must be selected.
Procedure