PROFIBUS/PROFINET: Bus configuration changed

What does 380503 mean?

This alarm indicates that a new SDB (System Data Block) with a modified configuration has been provided for the PROFIBUS/PROFINET bus. Similar to 380502, the new settings will only be activated upon the next bus power-up. This is an informational alarm requiring a system restart to apply the updated configuration, ensuring correct bus operation and avoiding potential communication errors.