44

Firmware version mismatch

Kuka · KRC2 KSS System Message

What does 44 mean?

A mismatch has been detected in the firmware versions between components. This will cause maximum braking and inhibit all active commands.

Common Causes

  • Firmware on connected devices does not match the version expected by the master controller.
  • Incompatible firmware versions prevent proper communication and function.
  • Requires updating firmware on one or more connected devices.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the configuration for firmware compatibility to resolve the version mismatch.

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Verified technical data. Last updated: March 2026

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Source: Kuka KRC2 KSS System Message