LogrobotLM

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FANUC Alarm DNET-055 — ERR_STOP_C Board or network error: Bd …

Manufacturer wording — ERR_STOP_C Board or network error: Bd %d
The manual prints placeholders; your controller fills them in with the real group, axis or number.

FANUC DNET-055 (“ERR_STOP_C Board or network error: Bd …”): An error has occurred with the specified daughter board or the DeviceNet network connected to it. First check: Refer to the and of the code (displayed immediately below this error code on the teach pendant).

Updated 2026-09-17 · LogrobotLM reference

Description

An error has occurred with the specified daughter board or the DeviceNet network connected to it.

Remedy

Refer to the and of the code (displayed immediately below this error code on the teach pendant).

Related codes

DNET-053WARN Line above DEVICE line ignoredDNET-054WARN All space in shared RAM usedDNET-056WARN Network power lostDNET-057WARN Network communications error

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 →