KUKA Robot codes
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KUKA Robot Controller

System · Basic

Alarm KRC0819

KUKA Robot KRC0819 - NAME NOT DECLARED AS CHANNEL 2155

A KRL program object referenced in the code has not been properly declared as a CHANNEL data type. This prevents the KRC system from recognizing the object as a valid channel for data communication or I/O operations. The compiler or runtime interpreter cannot establish the necessary channel properties for the referenced object.

KUKA RobotSystemBasic

KRC0819

KUKA Robot KRC0819 - NAME NOT DECLARED AS CHANNEL 2155

NAME NOT DECLARED AS CHANNEL 2155

A KRL program object referenced in the code has not been properly declared as a CHANNEL data type. This prevents the KRC system from recognizing the object as a valid channel for data communication or I/O operations. The compiler or runtime interpreter cannot establish the necessary channel properties for the referenced object.

Common Causes

  • Object declared with incorrect data type instead of CHANNEL
  • Missing CHANNEL keyword in variable declaration statement
  • Typo in object name causing reference to undeclared variable
  • Object declared in different scope/module not accessible in current context
  • Incomplete or malformed variable declaration syntax in KRL source code

Troubleshooting Steps

  1. 1Locate the object name referenced in the alarm message in your KRL program source code
  2. 2Verify the object is explicitly declared with CHANNEL data type (e.g., 'DECL CHANNEL myChannel')
  3. 3Check that the declaration is in the correct scope and accessible from where it is being used
  4. 4Confirm spelling and syntax of the CHANNEL declaration matches KUKA KRL standards
  5. 5Review the entire variable declaration block for missing or misplaced CHANNEL keywords
  6. 6Recompile the program and verify the alarm clears after correcting the declaration

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