Omron NJ-series User Manual page 396

Precautions for Correct Use Precautions for Correct Use
Restoring Data When EtherCAT Slaves Are Connected
• Always cycle the power supply to the NJ-series Controller and the EtherCAT slaves after you
restore data when EtherCAT slaves are connected. If you start operation without cycling the
power supply, the Controller may perform unexpected operation.
• To verify the data after you restore data with EtherCAT slaves connected, first turn OFF the
power supply to the NJ-series Controller and EtherCAT slaves, and then start in Safe Mode
before you perform the verification procedure. If you cycle the power supply normally, the Con-
troller will start operation before you can perform the verification procedure. That means that
operation could be started with data that is not correct. For information on Safe Mode, refer to
the NJ-series Troubleshooting Manual (Cat. No. W503).
Verification Procedure
 Preparations
1
Insert the SD Memory Card that contains the backup file into the CPU Unit.
2
Set all of pins 1 to 4 on the DIP switch on the CPU Unit to OFF.
 Verifying the Data
3
Press the SD Memory Card power supply switch for 3 seconds.
Data comparison is started. The SD PWR indicator will flash, lighting for 3 seconds and going
out for 0.5 seconds.
If the verification operation is completed and the data is the same, the SD PWR indicator will
stop flashing and remain lit.
If the verification operation is completed and differences were found in the data, the SD PWR
indicator will flash, lighting for 0.5 seconds and going out for 0.5 seconds.
 Ending the Verification Procedure
4
Press the SD Memory Card power supply switch to turn OFF the SD PWR indicator.
5
Remove the SD Memory Card.
NJ-series CPU Unit Software User's Manual (W501)
9 Backup Functions
9-5
9