Restore (Sd Memory Card To Controller) - Omron NJ-series User Manual

9 Backup Functions
9-2-2

Restore (SD Memory Card to Controller)

When the power supply is turned ON, you can transfer the data in a backup file on the SD Memory Card
in the CPU Unit to the Controller. The only way to perform this operation is to use the front-panel DIP
switch on the CPU Unit. You cannot specify the source directory for backup-related files. The backup
file to restore must be stored in the root directory on the SD Memory Card.
Processing Contents
• The data in a backup file in the root directory on the SD Memory Card is transferred to the Controller.
• The data groups that are processed by the restoration operation in the RestoreCommand.ini file
(restore command file) that is stored in the root directory. Refer to 9-11-3 Specifications of a Restore
Command File for details on the restore command file.
• If there is not a restore command file in the root directory of the SD Memory Card, all of the data from
the backup files in the root directory that can be transferred to the Controller will be transferred.
• After the operation is completed, the operating mode will change to PROGRAM mode. You cannot
start operation in this state. To start operation, turn OFF all DIP switch pins from 1 to 4, and then
cycle the power supply to the Controller or reset the Controller.
• Cycle the power supply to all of the EtherCAT slaves after you restore data.
• While the data is being restored, the CPU Unit will be in startup state.
• 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 configuration for Units and slaves in the backup file does not match the actual configuration
where data is restored, a Restore Execution Error will occur when you restore the data.
• 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.
• The SD Memory Card will remain mounted after completion of the restore operation.
• The write protection for the CPU Unit that is set in the Write Protection at Startup setting is used after
completion of the restore operation.
9-18 NJ-series CPU Unit Software User's Manual (W501)