ABB Error 20326 — Incorrect argument for System IO Signal
ErrorABB 20326 (“Incorrect argument for System IO Signal”): “Incorrect argument for System IO Signal” is an ABB IRC5 event of major severity.
Updated 2026-10-23 · LogrobotLM reference
What it means
“Incorrect argument for System IO Signal” 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 →