What causes KUKA Robot alarm KRC0998?

Missing or incorrect operand in a mathematical expression or assignment statement. Using a non-REAL data type (INT, BOOL, CHAR) where a REAL value is required. Incorrect array indexing or accessing an array element that is not of REAL type. Malformed function call with wrong parameter type passed to a function expecting REAL. Syntax error such as missing operator, parenthesis, or invalid constant declaration.

How do I fix KUKA Robot alarm KRC0998?

1. Check the KRL source code at the line number indicated by the alarm message for syntax errors 2. Verify that all REAL variables and constants are properly declared with correct data types 3. Ensure array elements being accessed match the expected REAL type and use valid index notation 4. Review function calls to confirm all parameters passed are REAL type or compatible types 5. Use the KRC editor's syntax checker and compile the program to identify exact error locations 6. Correct the offending code statement and recompile; if error persists, verify variable scope and initialization

KUKA Robot codes

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KUKA Robot Controller

System · Basic

Alarm KRC0998

KUKA Robot KRC0998 - REAL CONSTANT, VARIABLE OR ARRAY ELEMENT EXPECTED 2335

This alarm indicates a syntax or type error in KRL code where a REAL constant, variable, or array element was expected but not provided at the specified location. The compiler encountered an invalid expression or incorrect data type in a context requiring a real number value.

KUKA RobotSystemBasic

KRC0998

KUKA Robot KRC0998 - REAL CONSTANT, VARIABLE OR ARRAY ELEMENT EXPECTED 2335

REAL CONSTANT, VARIABLE OR ARRAY ELEMENT EXPECTED 2335

Common Causes

Missing or incorrect operand in a mathematical expression or assignment statement
Using a non-REAL data type (INT, BOOL, CHAR) where a REAL value is required
Incorrect array indexing or accessing an array element that is not of REAL type
Malformed function call with wrong parameter type passed to a function expecting REAL
Syntax error such as missing operator, parenthesis, or invalid constant declaration

Troubleshooting Steps

1Check the KRL source code at the line number indicated by the alarm message for syntax errors
2Verify that all REAL variables and constants are properly declared with correct data types
3Ensure array elements being accessed match the expected REAL type and use valid index notation
4Review function calls to confirm all parameters passed are REAL type or compatible types
5Use the KRC editor's syntax checker and compile the program to identify exact error locations
6Correct the offending code statement and recompile; if error persists, verify variable scope and initialization

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