FANUC Alarm HOST-134 — WARN BCC or CRC error

FANUC HOST-134 (“WARN BCC or CRC error”): The Host Comm system is receiving checksum errors on all messages. First check: Ensure that the external device is using the same protocol.

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 →