What causes KUKA Robot alarm KRC0963?

Incorrect constant declaration syntax or format in KRL source code. Use of unsupported data type for constant definition (e.g., attempting to define a constant with an invalid type specifier). Typo or misspelling in constant type keyword within the program object. Mixing incompatible constant types or attempting to assign incompatible values to typed constants. Using reserved keywords or special characters incorrectly in constant declarations.

How do I fix KUKA Robot alarm KRC0963?

1. Review the KRL program source code around the error location and verify all constant declarations use valid KUKA constant type syntax 2. Check that constant types match supported KUKA types (INT, REAL, BOOL, CHAR, etc.) and correct any misspelled type keywords 3. Verify constant value assignments are compatible with their declared types and properly formatted 4. Consult the KUKA KRL Reference documentation for valid constant type definitions and declaration syntax 5. Recompile the program after corrections using the KRC development environment to identify any remaining syntax issues 6. If the error persists, isolate the problematic constant declaration and test it in a minimal program to verify correct syntax

KUKA Robot codes

axismd.ai

KUKA Robot Controller

System · Basic

Alarm KRC0963

KUKA Robot KRC0963 - EXPECTED CONSTANT TYPE UNKNOWN 2300

This alarm indicates that the KRL compiler encountered an unexpected or unknown constant type during program compilation or interpretation. The constant referenced in the program does not match any recognized KUKA constant type definition, preventing proper code compilation or execution.

KUKA RobotSystemBasic

KRC0963

KUKA Robot KRC0963 - EXPECTED CONSTANT TYPE UNKNOWN 2300

EXPECTED CONSTANT TYPE UNKNOWN 2300

Common Causes

Incorrect constant declaration syntax or format in KRL source code
Use of unsupported data type for constant definition (e.g., attempting to define a constant with an invalid type specifier)
Typo or misspelling in constant type keyword within the program object
Mixing incompatible constant types or attempting to assign incompatible values to typed constants
Using reserved keywords or special characters incorrectly in constant declarations

Troubleshooting Steps

1Review the KRL program source code around the error location and verify all constant declarations use valid KUKA constant type syntax
2Check that constant types match supported KUKA types (INT, REAL, BOOL, CHAR, etc.) and correct any misspelled type keywords
3Verify constant value assignments are compatible with their declared types and properly formatted
4Consult the KUKA KRL Reference documentation for valid constant type definitions and declaration syntax
5Recompile the program after corrections using the KRC development environment to identify any remaining syntax issues
6If the error persists, isolate the problematic constant declaration and test it in a minimal program to verify correct syntax

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