FANUC Alarm DNET-028 — ERR_STOP_C Board online err: Bd …
Manufacturer wording — ERR_STOP_C Board online err: Bd %d
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC DNET-028 (“ERR_STOP_C Board online err: Bd …”): The specified board cannot be brought on-line. First check: Make sure the board is properly connected to the network.
Updated 2026-09-17 · LogrobotLM reference
Description
The specified board cannot be brought on-line.
Remedy
Make sure the board is properly connected to the network. Check that network power is being supplied. Check that baud rates for the board and devices are in agreement. Cold Start the controller.
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 →