-1

General Error During ioCtl

Kuka · KR C4 PROFIBUS

What does -1 mean?

A non-specific internal error occurred during an I/O control operation. This indicates a fundamental issue within the system's ability to execute commands, possibly related to internal state, permissions, or a corrupted process.

Repair Steps

  1. 1

    Reboot the system with a cold start to clear transient errors.

  2. 2

    Verify the syntax and parameters of the `ioCtl` command being executed for any obvious discrepancies.

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Verified technical data. Last updated: March 2026