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FANUC Alarm PMON-009 — WARN PMON monitor not found

FANUC PMON-009 (“WARN PMON monitor not found”): The PC Monitor task had an internal monitoring failure. First check: Somehow, PMON is out of sync with the PC.

Updated 2026-09-17 · LogrobotLM reference

Description

The PC Monitor task had an internal monitoring failure. The requested monitor number was not found in the list of monitors.

Remedy

Somehow, PMON is out of sync with the PC. In some cases, this may be normal if the PC is attempting to clean up after an internal error.

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 →