What causes KUKA Robot alarm KRC0938?

Passing an incompatible data type to a function parameter (e.g., INT instead of REAL). Attempting to pass a variable of incorrect structure type to a structured parameter. Using an array when a scalar value is expected, or vice versa. Passing a parameter with incorrect array dimensions or size. Incompatible pointer or reference types in function calls.

How do I fix KUKA Robot alarm KRC0938?

1. Review the function or procedure declaration to identify the formal parameter types required 2. Check the actual parameter being passed in the function call and verify its declared data type 3. Compare the actual parameter type with the formal parameter type and correct any mismatches 4. If using arrays, ensure dimensions and element types match the function signature 5. If type conversion is necessary, use appropriate KUKA type conversion functions or cast operations 6. Recompile the KRL program and verify the alarm is resolved before running the robot

KUKA Robot codes

axismd.ai

KUKA Robot Controller

Parameter · Basic

Alarm KRC0938

KUKA Robot KRC0938 - TYPE ACTUAL/FORMAL PARAMETER INCOMPATIBLE 2275

This alarm indicates a type mismatch between an actual parameter and its corresponding formal parameter in a KRL function or procedure call. The compiler has detected that the data type of the argument being passed does not match the declared parameter type, preventing the program from executing.

KUKA RobotParameterBasic

KRC0938

KUKA Robot KRC0938 - TYPE ACTUAL/FORMAL PARAMETER INCOMPATIBLE 2275

TYPE ACTUAL/FORMAL PARAMETER INCOMPATIBLE 2275

Common Causes

Passing an incompatible data type to a function parameter (e.g., INT instead of REAL)
Attempting to pass a variable of incorrect structure type to a structured parameter
Using an array when a scalar value is expected, or vice versa
Passing a parameter with incorrect array dimensions or size
Incompatible pointer or reference types in function calls

Troubleshooting Steps

1Review the function or procedure declaration to identify the formal parameter types required
2Check the actual parameter being passed in the function call and verify its declared data type
3Compare the actual parameter type with the formal parameter type and correct any mismatches
4If using arrays, ensure dimensions and element types match the function signature
5If type conversion is necessary, use appropriate KUKA type conversion functions or cast operations
6Recompile the KRL program and verify the alarm is resolved before running the robot

Seeing Multiple Alarms?

Seeing another alarm with this one? Enter the code.

Get machine-aware diagnosis

AxisMD logs alarms against your actual machines, tracks patterns, and gives AI context your manual doesn't have.

Start free

Was this guide helpful?

Always verify with your machine manual or a certified technician before performing service procedures.