FANUC Alarm ARC-171 — STOP Unified data RCV error(…,0x…)(E:…)

Manufacturer wording — STOP Unified data RCV error(%d,0x%X)(E:%d)
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC ARC-171 (“STOP Unified data RCV error(…,0x…)(E:…)”): Failed to receive unified data. First check: Confirm port setup, noise environment, cable status.

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 →