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ErrorLib — Industrial Fault Code Library

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xxxx 0110

Invalid FSoE Address

Beckhoff · TwinSAFE Logic FB

What does xxxx 0110 mean?

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.

Common Causes

  • Invalid FSoE (Fail-Safe over EtherCAT) Address.
  • Incorrect configuration of FSoE device address.
  • FSoE node not correctly integrated into the network.
  • Address conflict with another FSoE device.
  • FSoE master controller failed to assign a valid address.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify that each FSoE slave device has a unique and correctly configured FSoE address within the safety domain.

  2. 2

    Ensure the FSoE master configuration matches the addresses of all connected FSoE slaves.

  3. 3

    Recheck the address assignment process in the engineering software, especially after device replacements.

  4. 4

    Confirm there are no IP address conflicts if the FSoE addresses are linked to specific network configurations.

Browse all codes in this manual (60)
Verified technical data. Last updated: April 2026

Related Faults

0x401FPress Not Moving After Start Command0x4020Press Unexpectedly Stopped After Starting0x4021Insufficient Press Movement
Source: Beckhoff TwinSAFE Logic FB
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