xxxx 0101

Watchdog Time Elapsed

Beckhoff · TwinSAFE Logic FB

What does xxxx 0101 mean?

The FSoE watchdog timer on a device has expired, meaning that a safety telegram was not received within the configured watchdog period. This indicates a communication timeout, potentially due to network delays, device malfunction, or disconnection, leading to a safe state.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Monitor network load and traffic to identify any bottlenecks or excessive delays that could cause timeouts.

  2. 4

    Inspect the FSoE master and slave devices for operational status, power supply issues, or internal errors that could prevent telegram transmission.

Source: Beckhoff TwinSAFE Logic FB
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