FANUC Alarm PRIO-063 — WARN Bad I/O asg: rack %d slot %d
FANUC PRIO-063 (“WARN Bad I/O asg: rack %d slot %d”): One or more assignments to the process I/O board or module at the specified rack and slot was invalid when the controller was turned on. First check: Check the connections and power to the board or rack and that the module(s) are firmly installed.
Updated 2026-08-29 · LogrobotLM reference
Description
One or more assignments to the process I/O board or module at the specified rack and slot was invalid when the controller was turned on.
Remedy · Remède
Check the connections and power to the board or rack and that the module(s) are firmly installed. If the board or module has been permanently removed, moved to a different Model A slot or had its switch settings changed (model B), use the CONFIG option on the Digital I/O menu to delete or update the assignment(s).
Frequently asked · Questions fréquentes
- What does FANUC alarm PRIO-063 mean?
- FANUC PRIO-063 (“WARN Bad I/O asg: rack %d slot %d”): One or more assignments to the process I/O board or module at the specified rack and slot was invalid when the controller was turned on.
- How do you troubleshoot FANUC alarm PRIO-063?
- Check the connections and power to the board or rack and that the module(s) are firmly installed. If the board or module has been permanently removed, moved to a different Model A slot or had its switch settings changed (model B), use the CONFIG option on the Digital I/O menu to delete or update the assignment(s).
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 →