When upgrading a relay from a lower version to a higher version, user can either follow
Configuration migration using ICM tool and Firmware update to the relay using FUT tool of PCM600 in this order
OR
Firmware update to the relay using FUT tool and Configuration migration using ICM tool of PCM600 in this order.
After the relay upgrade with the new firmware, a factory setting restoration needs to be performed in the relay from LHMI path for the updated firmware to take effect and for enabling the newer functions and settings.
If the relay is upgraded by adding new HW module, user should update the HWT tool (refer to Adding or removing hardware cards) after configuration migration is completed. This will ensure Hardware composition is aligned with the actual relay hardware.
Refer to Upgrading REX610 1.0 to REX610 1.1 or higher - adding and configuring ARC module for steps to add ARC module to the relay and for upgrading the configuring of a REX610 1.0 with ARC protection (available in REX610 1.1).