LogrobotLM

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FANUC Alarm APSH-016 — WARN Robot is not under PLC control

FANUC APSH-016 (“WARN Robot is not under PLC control”): The UOP is not the master device, which prevents the run request from executing First check: Turn SOP REMOTE/LOCAL keyswitch to REMOTE.

Updated 2026-09-17 · LogrobotLM reference

Description

The UOP is not the master device, which prevents the run request from executing

Remedy

Turn SOP REMOTE/LOCAL keyswitch to REMOTE. Make sure all UOP signals are correct for execution. Set $RMT_MASTER to 0.

Related codes

APSH-014WARN RESET FailureAPSH-015WARN Step mode must be disabledAPSH-017WARN Running with process disabledAPSH-018WARN WARNING - Machine lock is on

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 →