FANUC Alarm DNET-138 — IDNS unsupported H/W, Bd …
Manufacturer wording — IDNS unsupported H/W, Bd %d
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC DNET-138 (“IDNS unsupported H/W, Bd …”): A DevicNet channel has been configured for safety. First check: Use DN4 DeviceNet hardware or disable safety on this channel.
Updated 2026-09-17 · LogrobotLM reference
Description
A DevicNet channel has been configured for safety. A safety DeviceNet channel requires DN4 hardware. The detected hardware is not supported for a safety channel.
Remedy
Use DN4 DeviceNet hardware or disable safety on this channel.
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 →