What causes KUKA Robot alarm KRC0503?

Program contains more than 32 INTERRUPT declarations in the source code. Multiple interrupt definitions across different program modules or includes that sum to exceed 32. Redundant or duplicate interrupt declarations not properly removed during code refactoring. Third-party libraries or frameworks integrated into the application that define excessive interrupts. Incorrect interrupt management where old interrupt definitions were not properly deactivated or removed before adding new ones.

How do I fix KUKA Robot alarm KRC0503?

1. Review the KRC program source code and count all INTERRUPT declarations to identify total interrupt definitions 2. Audit interrupt usage and consolidate related interrupt handlers into single interrupt routines where functionally possible 3. Remove unused or obsolete interrupt definitions from the program and all included modules 4. Check loaded program modules using the WorkVisual or KRC IDE to identify which components contain interrupt definitions 5. Refactor interrupt-dependent functionality to use alternative event handling mechanisms such as signal monitoring or synchronized motion tasks 6. Reduce total interrupt count to 32 or fewer, then reload and compile the program to clear the alarm

KUKA Robot codes

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KUKA Robot Controller

System · Advanced

Alarm KRC0503

KUKA Robot KRC0503 - Max. no. of interrupts defined

This alarm indicates that the number of interrupt definitions in the KRC robot controller program has exceeded the maximum limit of 32 interrupts. The KRC system architecture supports a finite number of concurrent interrupt handlers, and attempting to define more than this threshold will trigger this fault condition. This typically occurs during program configuration or when loading interrupt-heavy application code.

KUKA RobotSystemAdvanced

KRC0503

KUKA Robot KRC0503 - Max. no. of interrupts defined

Max. no. of interrupts defined

Common Causes

Program contains more than 32 INTERRUPT declarations in the source code
Multiple interrupt definitions across different program modules or includes that sum to exceed 32
Redundant or duplicate interrupt declarations not properly removed during code refactoring
Third-party libraries or frameworks integrated into the application that define excessive interrupts
Incorrect interrupt management where old interrupt definitions were not properly deactivated or removed before adding new ones

Troubleshooting Steps

1Review the KRC program source code and count all INTERRUPT declarations to identify total interrupt definitions
2Audit interrupt usage and consolidate related interrupt handlers into single interrupt routines where functionally possible
3Remove unused or obsolete interrupt definitions from the program and all included modules
4Check loaded program modules using the WorkVisual or KRC IDE to identify which components contain interrupt definitions
5Refactor interrupt-dependent functionality to use alternative event handling mechanisms such as signal monitoring or synchronized motion tasks
6Reduce total interrupt count to 32 or fewer, then reload and compile the program to clear the alarm

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