xxxx 0100

Invalid CRC

Beckhoff · TwinSAFE Logic FB

What does xxxx 0100 mean?

A Cyclic Redundancy Check (CRC) error was detected in an FSoE telegram. This indicates data corruption during transmission, usually due to noise, damaged cabling, or faulty network components. It compromises safety integrity and prevents reliable communication, forcing a safe state.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Verify network switches or couplers in the FSoE path are suitable for industrial Ethernet and functioning correctly.

  2. 4

    Perform a cable test to measure signal integrity and identify faulty segments.

Source: Beckhoff TwinSAFE Logic FB
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