LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free → · Le diagnostic IA qui lit la sauvegarde de votre robot, sans rien téléverser.

FANUC Alarm XMLF-004 — Invalid character in tag

FANUC XMLF-004 (“Invalid character in tag”): Tag names cannot contain special characters such as &, <, >, /, ", or ". First check: Do not use special characters in tag names.

Updated 2026-08-29 · LogrobotLM reference

Description

Tag names cannot contain special characters such as &, <, >, /, ", or ".

Remedy · Remède

Do not use special characters in tag names.

Frequently asked · Questions fréquentes

What does FANUC alarm XMLF-004 mean?
FANUC XMLF-004 (“Invalid character in tag”): Tag names cannot contain special characters such as &, <, >, /, ", or ".
How do you troubleshoot FANUC alarm XMLF-004?
Do not use special characters in tag names.

Related codes / Codes liés

XMLF-002Attribute too longXMLF-003Invalid use of / characterXMLF-005No value for attributeXMLF-006End tag with no matching start

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 →