KRC0670

Common Causes

• Variable declared but not assigned an initial value before use
• Conditional logic that references a variable only initialized in certain code paths
• Function or module parameter passed without proper initialization at the call site
• Array or structure element accessed before the parent object was initialized
• Variable scope issue where a local variable is referenced outside its definition block

Troubleshooting Steps

1. 1Identify the specific variable or object name from the alarm message and locate it in the KRL source code
2. 2Review the variable declaration and ensure it includes an initialization value or assignment immediately follows declaration
3. 3Check all code paths that reference the variable to confirm it is initialized before every use
4. 4Verify function and module calls pass properly initialized parameters with valid data types
5. 5Use the KUKA IDE debugger to inspect variable states at the point of alarm and trace execution flow backwards
6. 6Recompile the KRL program after making corrections and test with diagnostic output to confirm variable initialization