KUKA Error 2124 — VARIABLE NOT DECLARED IN THE DATA LIST
Displayed as KSS02124 on KRC4 / KRC5 controllers
KUKA 2124 (“VARIABLE NOT DECLARED IN THE DATA LIST”): A variable that must be declared in a DAT file is required. First check: Modify the program.
Updated 2026-09-09 · LogrobotLM reference
Cause
A variable that must be declared in a DAT file is required.
Effect
The program is not executable.
Troubleshooting
Modify the program.
Related codes
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 →