Beckhoff · TwinSAFE Logic FB
An invalid FSoE address was detected during communication. This means a device is either configured with an incorrect address or is attempting to communicate with an unassigned or out-of-range address. It prevents proper safety device identification and communication, rendering safety functions inoperable.
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Verify that each FSoE slave device has a unique and correctly configured FSoE address within the safety domain.
Ensure the FSoE master configuration matches the addresses of all connected FSoE slaves.
Recheck the address assignment process in the engineering software, especially after device replacements.
Confirm there are no IP address conflicts if the FSoE addresses are linked to specific network configurations.