ABB Error 71526 — PROFINET I/O device unknown alarm
ErrorABB 71526 (“PROFINET I/O device unknown alarm”): “PROFINET I/O device unknown alarm” is an ABB IRC5 event of major severity.
Updated 2026-10-23 · LogrobotLM reference
What it means
“PROFINET I/O device unknown alarm” 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 →