FANUC Alarm DNET-122 — WARN Device error: Bd … MAC …
Manufacturer wording — WARN Device error: Bd %d MAC %d
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC DNET-122 (“WARN Device error: Bd … MAC …”): An error has occurred with the device at the specified board number and MAC Id. First check: Refer to the Cause and Remedy for the cause code (displayed directly beneath this error code on the teach pendant).
Updated 2026-09-17 · LogrobotLM reference
Description
An error has occurred with the device at the specified board number and MAC Id.
Remedy
Refer to the Cause and Remedy for the cause code (displayed directly beneath this error code on the teach pendant).
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 →