FANUC Alarm INTP-239 — WARN Cannot execute backwards

Manufacturer wording — WARN (%s^4, %d^5) Cannot execute backwards
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC INTP-239 (“WARN Cannot execute backwards”): This instruction cannot be executed backwards. First check: Set the cursor to the following line.

Updated 2026-09-17 · LogrobotLM reference

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 →