FANUC Alarm COPT-005 — WARN Add PC illegal index into buffer
FANUC COPT-005 (“WARN Add PC illegal index into buffer”): An ADD PC buffer built-in was called with the index parameter set too big or too small. First check: Set the index parameter correctly.
Updated 2026-09-17 · LogrobotLM reference
Description
An ADD PC buffer built-in was called with the index parameter set too big or too small.
Remedy
Set the index parameter correctly. Make sure the data buffer is big enough for your data.
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 →