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ErrorLib — Industrial Fault Code Library

Disclaimer: ErrorLib is an independent technical reference tool. While we aim for accuracy, always verify with the manufacturer’s official service manuals before performing maintenance on industrial equipment. ErrorLib is not affiliated with the brands listed.

-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.

Common Causes

  • Underlying operating system or driver error during I/O control operation.
  • Incorrectly formed control command sent to the communication interface.
  • Hardware resource conflict or driver instability.
  • Problem with the communication adapter or its firmware.

Repair Steps & Checklist

Click steps to track your progress.

  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.

Browse all codes in this manual (19)
Verified technical data. Last updated: April 2026

Related Faults

-2Device Address Not Found-3Timeout - Device Not Reacting10039PROFIBUS Master Error in Module
Source: Kuka KR C4 PROFIBUS
Open Manual (Page 21)Search more codes in this manual