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ErrorLib — Industrial Fault Code Library

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XML_FUNCTION

Function code return

Fanuc · R-30iA R-30iB Controller

What does XML_FUNCTION mean?

This fault indicates that an underlying internal function called during XML processing returned an error code. This is a generic indicator of a problem within one of the XML library's internal operations, preventing further parsing.

Common Causes

  • An internal function call during XML processing returned an error code.
  • A sub-process within the XML parser encountered an issue.
  • Unexpected condition within the parser's logic.
  • Data handling error by an internal module.
  • A hardware-related issue affecting internal memory or processing.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Restart the equipment or system to clear temporary internal states.

  2. 2

    Ensure the firmware or software version of the XML parser is up-to-date.

  3. 3

    Check for system logs that might provide more detail on the internal function error.

  4. 4

    If the fault persists, consider a system reset or re-initialization of parameters.

  5. 5

    Test with a known valid and simple XML configuration file.

Browse all codes in this manual (31)
Verified technical data. Last updated: April 2026

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Source: Fanuc R-30iA R-30iB Controller
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