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FANUC Alarm INTP-343 — ABORT Reference stack overflow

Manufacturer wording — ABORT (%s^4, %d^5) Reference stack overflow
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC INTP-343 (“ABORT Reference stack overflow”): KAREL program error. First check: Decrease the number of BYNAME functions.

Updated 2026-09-17 · LogrobotLM reference

Description

KAREL program error. Too many variables are passed using the BYNAME function.

Remedy

Decrease the number of BYNAME functions.

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 →