KUKA Robot codes
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KUKA Robot Controller

System · Basic

Alarm KRC0611

KUKA Robot KRC0611 - Channel specification inadmissible

A productive command has been transmitted via an inadmissible SINEC L2 bus channel. The KRC4 controller rejected the command because the specified channel is not configured for productive data transfer. Verify that the command is being sent through the correct communication interface.

KUKA RobotSystemBasic

KRC0611

KUKA Robot KRC0611 - Channel specification inadmissible

Channel specification inadmissible

A productive command has been transmitted via an inadmissible SINEC L2 bus channel. The KRC4 controller rejected the command because the specified channel is not configured for productive data transfer. Verify that the command is being sent through the correct communication interface.

Common Causes

  • Attempting to send motion or I/O commands through a diagnostic or configuration channel
  • Incorrect channel number specified in the KRL program or external interface call
  • SINEC L2 channel opened with wrong access mode or permissions
  • Mixing productive and non-productive channel operations in the same communication sequence
  • Configuration mismatch between WorkVisual project and runtime SINEC L2 settings

Troubleshooting Steps

  1. 1Review the KRL source code to verify the channel specification and command syntax are correct
  2. 2Check the SINEC L2 configuration in WorkVisual to confirm the channel is defined as productive
  3. 3Verify the SINEC L2 board firmware version matches the KRC4 system software version
  4. 4Test communication using diagnostic tools in the KUKA smartPAD Diagnostics menu
  5. 5Review the SINEC L2 communication log files stored in the KRC4 file system for detailed error context
  6. 6Reconfigure the SINEC L2 channel in WorkVisual and download the updated configuration to the controller

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