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9 Troubleshooting
NJ/NX-series CPU Unit Built-in EtherCAT Port User’s Manual (W505)
9-4 Replacing Slaves during Communications
9
9-4-3 Backing Up Settings
Before you replace an EtherCAT slave that is currently performing communications, the settings of the
EtherCAT slave to replace are backed up. The settings of an EtherCAT slave are divided according to
the storage locations and setting methods into initial parameters and backup parameters, as shown in
the following table.
To replace an EtherCAT slave, you first back up the backup parameters that are stored in the EtherCAT
slave.
1
Click the Edit Backup Parameter Settings Button in the EtherCAT Slave Setting Tab Page.
The Backup Parameter Settings Tab Page is displayed.
2
Click the Transfer from Slave Button.
All of the backup parameters that are stored in the EtherCAT slave and displayed in the list are
transferred from the EtherCAT slave.
3
Click the Compare Button.
Check to be sure that you have correctly obtained the backup parameters in step 2.
9-4-3 Backing Up Settings
Slave settings Storage location Slave setting method
Initial parameters
EtherCAT master These parameters are set automatically from the EtherCAT
master when EtherCAT communications start or when a
slave is connected.
Backup parameters
EtherCAT slaves You set these parameters by transferring them to the slaves
from the Backup Parameter Settings Tab Page of the Sys-
mac Studio.
The data can also be transferred from the EtherCAT Drive
Tab Page.
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