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KUKA Error 2112 — IDENTIFIER NOT DECLARED

Displayed as KSS02112 on KRC4 / KRC5 controllers

KUKA 2112 (“IDENTIFIER NOT DECLARED”): In the subprogram or function, no data type has been assigned to the identifier (this is the name of the transfer parameter). First check: Modify the program accordingly.

Updated 2026-09-09 · LogrobotLM reference

Cause

In the subprogram or function, no data type has been assigned to the identifier (this is the name of the transfer parameter).

Effect

The program is not executable.

Troubleshooting

Modify the program accordingly. Example: DEF Prog(a:IN) REAL a ...

Related codes

2111INCORRECT END OF SUBPROGRAM/FUNCTION2113PROTOCOL VARIABLE MUST BE OF STRUCTURE TYPE2110INCORRECT END OF CONTROL STRUCTURE2114INCORRECT TYPE ENTERED

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 →