Watchdog Time Elapsed

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.

• Watchdog timer expired, indicating system unresponsiveness.
• The control processor is not executing code within the expected timeframe.
• Software hang or deadlock.
• Excessive system load causing delays.
• Hardware issue preventing regular task execution.

Click steps to track your progress.

1. 1

   Check the physical network connection (Ethernet cables, connectors) to ensure continuity and reliability.

2. 2

   Verify the FSoE watchdog time parameter is appropriately set for the network latency and device cycle times.

3. 3

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

4. 4

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