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KUKA Error 2259 — LEFT OPERAND: INCORRECT ARRAY OR PATH

Displayed as KSS02259 on KRC4 / KRC5 controllers

KUKA 2259 (“LEFT OPERAND: INCORRECT ARRAY OR PATH”): The left operand must not be an array or a path. First check: Modify the program.

Updated 2026-09-09 · LogrobotLM reference

Cause

The left operand must not be an array or a path. Example: INT x[9] x[2]=13 IF x[]== 7 THEN ...

Effect

The program cannot be executed.

Troubleshooting

Modify the program. Example: INT x[9] x[2]=13 IF x[2]== 7 THEN ...

Related codes

2258OPERAND DIFFERENT FROM BOOL2260LEFT OPERAND: INCORRECT ARRAY2257OPERAND DIFFERENT FROM INT, CHAR2261RIGHT OPERAND: ARRAY DIMENSION >1

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →