4

Ring Supervisor Status: Device cannot support operating ring parameters

Phoenix Contact · FL SWITCH 7000

What does 4 mean?

The device is unable to meet the operational requirements of the Device Level Ring (DLR) because its inherent capabilities do not support the configured values for beacon interval or beacon timeout. This prevents it from reliably participating in the ring protocol, potentially as a supervisor or even a normal node.

Common Causes

  • The "Beacon Timeout" parameter (which must be between 200 and 500000, default 1960 on Page 42) is configured to a value outside the device's hardware-supported range.
  • The "Beacon Interval" parameter is set to a value that the device's internal DLR engine cannot process or adhere to.
  • The device's DLR "Capability Flags" (Attribute 12) do not include support for the specific ring parameters or DLR features being used by the active supervisor.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Access the "DLR Status Information" web page (Figure 4-34) and review the configured "Beacon Timeout" value, ensuring it falls within the device's specified operational range (200-500000).

  2. 2

    If the device is intended to be a supervisor, check its DLR configuration for "Ring supervisor enable" (Attribute 4) and verify its "Capability Flags" (Attribute 12) support the required DLR features.

  3. 3

    If the values are too aggressive, adjust the "Beacon Timeout" to a less stringent setting (e.g., closer to the default of 1960) to determine if the device can then support the parameters.

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Verified technical data. Last updated: March 2026

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Source: Phoenix Contact FL SWITCH 7000