Updating M580 CPUs running a firmware version earlier than version 4.01 requires a one-time use of two firmware update tools:

• Unity Loader, and

• EcoStruxure™ Automation Device Maintenance.

For instructions on how to upgrade CPU firmware from a version earlier than V4.01 to V4.01 or later, refer to the document:

• M580 CPU Firmware Upgrade to V4.01 and Later Update Procedure