FANUC Alarm DNET-021 — WARN Code file checksum error
FANUC DNET-021 (“WARN Code file checksum error”): There is a problem with the DeviceNet scanner code file. First check: Cold start the system.
Updated 2026-08-29 · LogrobotLM reference
Description
There is a problem with the DeviceNet scanner code file.
Remedy · Remède
Cold start the system. If the problem persists, INIT start and reload the DeviceNet Interface option. If the problem continues to persist, document the events that led to the error and call your FANUC Robotics technical representative.
Frequently asked · Questions fréquentes
- What does FANUC alarm DNET-021 mean?
- FANUC DNET-021 (“WARN Code file checksum error”): There is a problem with the DeviceNet scanner code file.
- How do you troubleshoot FANUC alarm DNET-021?
- Cold start the system. If the problem persists, INIT start and reload the DeviceNet Interface option. If the problem continues to persist, document the events that led to the error and call your FANUC Robotics technical representative.
Related codes / Codes liés
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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →