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42E9

GROUPERR_RANGE_NOMOTIONFILTERTIME

Beckhoff · TwinCAT 2 NC

What does 42E9 mean?

The 'No Motion Filter Time' parameter configured for the group is outside its allowed range of [0.0 ... 60.0] seconds. This parameter filters brief periods of non-motion to prevent false 'no motion' detections, and an invalid setting can cause incorrect status reporting or premature task completion.

Common Causes

  • Manual configuration error where the 'No Motion Filter Time' parameter for the group was set below 0.0 seconds or above 60.0 seconds.
  • Automated configuration script or PLC logic attempted to write an out-of-range value to the 'No Motion Filter Time' parameter.
  • Corrupted data in the persistent configuration memory of the controller, leading to an invalid 'No Motion Filter Time' value being loaded.
  • Software bug in the HMI or engineering tool that allowed an invalid value to be entered without proper range validation for the parameter.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    1. Access the NC group configuration via the engineering software (e.g., TwinCAT XAE).

  2. 2

    2. Locate the 'No Motion Filter Time' parameter for the affected NC group.

  3. 3

    3. Modify the 'No Motion Filter Time' parameter to a value within the allowed range of [0.0 ... 60.0] seconds.

  4. 4

    4. Save the updated configuration to the controller and activate it.

  5. 5

    5. Perform an NC reset or cycle power on the controller to apply the new parameter value.

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Verified technical data. Last updated: April 2026

Related Faults

4000Internal error4001Memory error4002Nc retain data error (persistent data)
Source: Beckhoff TwinCAT 2 NC
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