What causes KUKA Robot alarm KRC1021?

Syntax error in the KRL source code (missing brackets, semicolons, or incorrect keywords). Invalid data type declaration or incompatible variable assignment. Incorrect function or module definition with mismatched parameters. Corrupted or incomplete program file with truncated code blocks. Unsupported or deprecated KRL language constructs used in the program.

How do I fix KUKA Robot alarm KRC1021?

1. Open the KRL source file in the KRC editor and locate the problematic object name referenced in the alarm message 2. Review the syntax of the identified block, checking for missing or misplaced brackets, semicolons, and correct keyword spelling 3. Verify all variable declarations match their usage and that data types are compatible with assigned values 4. Compare the function or module signature against KUKA KRL documentation to ensure correct parameter syntax 5. Recompile the program after corrections and verify the file was saved properly without corruption 6. If the issue persists, restore the program from a known-good backup or recreate the problematic block from scratch

KUKA Robot codes

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KUKA Robot Controller

System · Basic

Alarm KRC1021

KUKA Robot KRC1021 - BLOCK <object name> CANNOT BE FORMATED 2706

This alarm indicates that a KRL program object (module, function, or variable) cannot be formatted or compiled due to a syntax or structure error in the source code. The system is unable to process the block definition, preventing the program from being interpreted correctly.

KUKA RobotSystemBasic

KRC1021

KUKA Robot KRC1021 - BLOCK <object name> CANNOT BE FORMATED 2706

BLOCK <object name> CANNOT BE FORMATED 2706

Common Causes

Syntax error in the KRL source code (missing brackets, semicolons, or incorrect keywords)
Invalid data type declaration or incompatible variable assignment
Incorrect function or module definition with mismatched parameters
Corrupted or incomplete program file with truncated code blocks
Unsupported or deprecated KRL language constructs used in the program

Troubleshooting Steps

1Open the KRL source file in the KRC editor and locate the problematic object name referenced in the alarm message
2Review the syntax of the identified block, checking for missing or misplaced brackets, semicolons, and correct keyword spelling
3Verify all variable declarations match their usage and that data types are compatible with assigned values
4Compare the function or module signature against KUKA KRL documentation to ensure correct parameter syntax
5Recompile the program after corrections and verify the file was saved properly without corruption
6If the issue persists, restore the program from a known-good backup or recreate the problematic block from scratch

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