FANUC Alarm ARC-208 — WARN Arclink ch… no nodes on bus

Manufacturer wording — WARN Arclink ch%d no nodes on bus
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC ARC-208 (“WARN Arclink ch… no nodes on bus”): No other equipment can be detected on the Arclink network. First check: Check to make sure that the Arclink network is properly connected and that the attached welding equipment is turned on.

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 →