What causes KUKA Robot alarm KRC0734?

Attempting to use array indexing syntax on a scalar variable (e.g., MyVariable[0] where MyVariable is not an array). Passing a non-array parameter to a function that expects an array argument. Incorrect variable declaration where an array was intended but declared as a single element. Type mismatch in function call where a structure or record is provided instead of an array. Using array operations on a dynamically typed or incorrectly cast component.

How do I fix KUKA Robot alarm KRC0734?

1. Review the KRL source code at the line number indicated in the alarm message to identify the variable causing the error 2. Verify the data type declaration of the component - confirm it is declared as an array type (e.g., REAL [], INT [], or AXIS []) 3. Check function prototypes and parameter definitions to ensure array arguments are properly typed 4. If the component should be an array, correct the variable declaration from scalar to array syntax 5. If interfacing with external data or structures, validate the data structure conforms to expected array format 6. Recompile the KRL program after corrections and restart the KRC controller to clear the alarm

KUKA Robot codes

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KUKA Robot Controller

System · Basic

Alarm KRC0734

KUKA Robot KRC0734 - COMPONENT IS NO ARRAY 2070

This alarm indicates that a KRL program attempted to access an array element or perform array operations on a component that is not actually an array data type. The <object name> referenced in the error is a scalar variable, structure, or non-array component, but the code is trying to use it with array indexing or array-specific operations.

KUKA RobotSystemBasic

KRC0734

KUKA Robot KRC0734 - COMPONENT IS NO ARRAY 2070

COMPONENT IS NO ARRAY 2070

Common Causes

Attempting to use array indexing syntax on a scalar variable (e.g., MyVariable[0] where MyVariable is not an array)
Passing a non-array parameter to a function that expects an array argument
Incorrect variable declaration where an array was intended but declared as a single element
Type mismatch in function call where a structure or record is provided instead of an array
Using array operations on a dynamically typed or incorrectly cast component

Troubleshooting Steps

1Review the KRL source code at the line number indicated in the alarm message to identify the variable causing the error
2Verify the data type declaration of the <object name> component - confirm it is declared as an array type (e.g., REAL [], INT [], or AXIS [])
3Check function prototypes and parameter definitions to ensure array arguments are properly typed
4If the component should be an array, correct the variable declaration from scalar to array syntax
5If interfacing with external data or structures, validate the data structure conforms to expected array format
6Recompile the KRL program after corrections and restart the KRC controller to clear the alarm

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