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FANUC Alarm PMON-001 — WARN Failed to notify PC Monitor

FANUC PMON-001 (“WARN Failed to notify PC Monitor”): The PC Monitor task could not be notified. First check: Refer to the associated error code.

Updated 2026-09-17 · LogrobotLM reference

Description

The PC Monitor task could not be notified.

Remedy

Refer to the associated error code. OS -012 System error This error may be seen when attempting to monitor a variable or I/O point using the. StartMonitor method. It occurs when you have performed a restore from a controller that did not have the PCIF option installed. To fix this error, set system variable $SCR.$LPCOND_TIME to 40 and cycle power. This variable is set to zero on controllers that do not have the PCIF option installed. When set to zero, the task that performs monitoring is not started on powerup.

Related codes

PMON-002WARN Memory allocation failurePMON-003WARN Connect to PMON server failed

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 →