ABB Error 90604 — Tag/Attribute is empty or contains invalid character(s)
ErrorABB 90604 (“Tag/Attribute is empty or contains invalid character(s)”): “Tag/Attribute is empty or contains invalid character(s)” is an ABB IRC5 event of major severity.
Updated 2026-10-23 · LogrobotLM reference
What it means
“Tag/Attribute is empty or contains invalid character(s)” is an ABB IRC5 event of major severity.
Related codes
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. How this reference is built →