What causes KUKA Robot alarm KRC0842?

Missing or incorrect NODE, USER, or PERI access modifier declaration before a function or variable definition. Syntax error in function signature or variable declaration statement. Incorrect placement of access modifiers in relation to data type or object name. Missing keyword or incorrect keyword spelling in program structure definition. Incomplete or malformed declaration statement with missing required elements.

How do I fix KUKA Robot alarm KRC0842?

1. Open the KRL source file mentioned in the alarm message and navigate to the line indicated by the error reference 2. Review the syntax around the error location to verify proper NODE, USER, or PERI keyword usage and placement 3. Check that access modifiers (NODE, USER, PERI) precede the correct object type declaration (DEF, GLOBAL, etc.) 4. Verify the complete declaration statement includes all required components: modifier, type, name, and parameters where applicable 5. Compare the syntax against KUKA KRL documentation or similar working declarations in your codebase 6. Correct the syntax error, save the file, and reload/compile the program to verify the alarm clears

KUKA Robot codes

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KUKA Robot Controller

System · Basic

Alarm KRC0842

KUKA Robot KRC0842 - “NODE”, “USER”, “PERI” EXPECTED 2178

This alarm indicates a syntax error in the KRL program where a NODE, USER, or PERI keyword was expected but not found at the specified location. The parser encountered an unexpected token or missing declaration when processing program structure or access modifiers.

KUKA RobotSystemBasic

KRC0842

KUKA Robot KRC0842 - “NODE”, “USER”, “PERI” EXPECTED 2178

“NODE”, “USER”, “PERI” EXPECTED 2178

Common Causes

Missing or incorrect NODE, USER, or PERI access modifier declaration before a function or variable definition
Syntax error in function signature or variable declaration statement
Incorrect placement of access modifiers in relation to data type or object name
Missing keyword or incorrect keyword spelling in program structure definition
Incomplete or malformed declaration statement with missing required elements

Troubleshooting Steps

1Open the KRL source file mentioned in the alarm message and navigate to the line indicated by the error reference
2Review the syntax around the error location to verify proper NODE, USER, or PERI keyword usage and placement
3Check that access modifiers (NODE, USER, PERI) precede the correct object type declaration (DEF, GLOBAL, etc.)
4Verify the complete declaration statement includes all required components: modifier, type, name, and parameters where applicable
5Compare the syntax against KUKA KRL documentation or similar working declarations in your codebase
6Correct the syntax error, save the file, and reload/compile the program to verify the alarm clears

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