What does FANUC alarm PALL-121 mean?

FANUC PALL-121 (“Could not read %s”): Could not read the unitload .dt file. A Data error exists.

FANUC Alarm PALL-121 — Could not read %s

FANUC PALL-121 (“Could not read %s”): Could not read the unitload .dt file. First check: Check the MOTET communication and PTPC status.

Updated 2026-08-29 · LogrobotLM reference

Description

Could not read the unitload .dt file. A Data error exists.

Remedy · Remède

Check the MOTET communication and PTPC status.

Frequently asked · Questions fréquentes

What does FANUC alarm PALL-121 mean?: FANUC PALL-121 (“Could not read %s”): Could not read the unitload .dt file. A Data error exists.
How do you troubleshoot FANUC alarm PALL-121?: Check the MOTET communication and PTPC status.

Related codes / Codes liés

PALL-118Cannot use MODIFY PALL-119Stn file not loaded or created PALL-122Cannot go to DETAIL page PALL-123Data modification disallowed

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 →