LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free →

KUKA Error 2125 — COMPONENT DOES NOT BELONG TO THE TYPE

Displayed as KSS02125 on KRC4 / KRC5 controllers

KUKA 2125 (“COMPONENT DOES NOT BELONG TO THE TYPE”): A component is used that is not contained in the data type declaration. First check: Modify the program.

Updated 2026-09-09 · LogrobotLM reference

Cause

A component is used that is not contained in the data type declaration. Example: STRUC Otto INT a, REAL b DECL Otto Emma Emma.ccc=1

Effect

The program is not executable.

Troubleshooting

Modify the program. Example: STRUC Otto INT a, REAL b DECL Otto Emma Emma.a=1

Related codes

2124VARIABLE NOT DECLARED IN THE DATA LIST2126NOT A STRUCTURE DATA TYPE2123NAME NOT DECLARED AS A FUNCTION2127DECLARATION FOR PARAMETER MISSING

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 →