Beckhoff · TwinSAFE Logic FB
An invalid or unrecognized command was received over the FSoE connection. This indicates a potential communication protocol mismatch or a corrupted command transmission. Unresolved, this can prevent proper safety control and lead to system downtime or an unsafe state.
Click steps to track your progress.
Verify the firmware versions of both FSoE master and slave devices are compatible.
Check the FSoE configuration in the engineering software for correct command mapping and parameterization.
Inspect the communication wiring (Ethernet cable, connectors) for damage or interference causing data corruption.
Temporarily monitor FSoE communication traffic with a network analyzer to identify the source of the invalid command.