FANUC Alarm HOST-164 — WARN EXMG: Read Pending
FANUC HOST-164 (“WARN EXMG: Read Pending”): Attempt to write before read. First check: Make a read call after write before making a new write call.
Updated 2026-09-17 · LogrobotLM reference
Description
Attempt to write before read.
Remedy
Make a read call after write before making a new write call.
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 →