FANUC Alarm PRIO-495 — Modbus Timeout
FANUC PRIO-495 (“Modbus Timeout”): The Modbus TCP server timed-out while waiting for an I/O message from a Modbus TCP client. First check: Check the Modbus TCP client to verify it is functioning properly.
Updated 2026-08-29 · LogrobotLM reference
Description
The Modbus TCP server timed-out while waiting for an I/O message from a Modbus TCP client.
Remedy · Remède
Check the Modbus TCP client to verify it is functioning properly. Adjust the robot Modbus TCP timeout if necessary.
Frequently asked · Questions fréquentes
- What does FANUC alarm PRIO-495 mean?
- FANUC PRIO-495 (“Modbus Timeout”): The Modbus TCP server timed-out while waiting for an I/O message from a Modbus TCP client.
- How do you troubleshoot FANUC alarm PRIO-495?
- Check the Modbus TCP client to verify it is functioning properly. Adjust the robot Modbus TCP timeout if necessary.
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 →