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FANUC Alarm MEMO-163 — Line: … Field mismatch not handled

Manufacturer wording — Line: %d Field mismatch not handled
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC MEMO-163 (“Line: … Field mismatch not handled”): The type definition for a field in a structure already exists but is of a different type than what you are attempting to load. First check: Translate this program using a version of the translator that matches the version of the controller.

Updated 2026-09-17 · LogrobotLM reference

Description

The type definition for a field in a structure already exists but is of a different type than what you are attempting to load.

Remedy

Translate this program using a version of the translator that matches the version of the controller. Then try to load the program again.

Related codes

MEMO-161Converting KAREL program … to version …MEMO-162Line: … Local variable mismatch not handledMEMO-164Line: … Structure mismatch not handledMEMO-165Line: … First field is different

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 →