6000

Requested Function Not Available

Allen-Bradley · Logix and SLC PLC

What does 6000 mean?

This error means that the system requested a specific function or operation from a device, but the device does not support or cannot perform that function. This can happen if the device firmware does not include the requested capability or if it's disabled.

Common Causes

  • Attempting to execute an unsupported command on the target device.
  • Target device firmware version does not include the requested function.
  • Function is disabled or restricted in the target device's configuration.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Verify the installed module's part number and series against the module configured in the PLC's I/O tree.

  2. 2

    Check the module's current firmware revision and compare it against the documented requirements for the requested function.

  3. 3

    Inspect the module's properties and parameters within the PLC programming software (e.g., Studio 5000) to ensure the function is enabled and correctly configured.

  4. 4

    Review the module's physical hardware settings (DIP switches, jumpers) to confirm they permit the requested function.

  5. 5

    Analyze the PLC application logic to confirm that the requested function is supported by the specific capabilities of the installed module.

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Verified technical data. Last updated: March 2026

Related Faults

Source: Allen-Bradley Logix and SLC PLC