KUKA Robot codes
KUKA RobotSystemBasic

KRC0471

KUKA Robot KRC0471 - Message not available

Message not available

This alarm indicates that the KRC controller attempted to display or acknowledge a message that is not currently available in the system memory or message database. This typically occurs when the controller references a message ID that has been deleted, corrupted, or was never properly loaded into the runtime environment.

Common Causes

  • Message database file corrupted or incomplete during controller startup
  • Missing or damaged language pack files in the KRC system directory
  • Message ID referenced in program code does not exist in the message table
  • KRC software version mismatch between system files and loaded message libraries
  • Flash memory or SD card containing message definitions has read errors

Troubleshooting Steps

  1. 1Power cycle the KRC controller completely and allow full system initialization
  2. 2Navigate to Diagnostics menu and verify the message database integrity check status
  3. 3Inspect the language pack files in the system directory and reinstall if corrupted using the KRC software installation media
  4. 4Review the application program code to identify any manual message acknowledgment calls with invalid message IDs
  5. 5Perform a backup and factory reset of the KRC controller if message database remains inaccessible
  6. 6Contact KUKA support with a system log dump if the alarm persists after all recovery attempts

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