ABB Error 581 — Link RS232/422 fault
ErrorABB 581 (“Link RS232/422 fault”): Error during start-up of the computer link. Likely part: Liaison RS232/422 (link RS232/422).
Updated 2026-10-22 · LogrobotLM reference
What it means
Error during start-up of the computer link.
What to check
- Refer to chapter 6.
- Check the physical connections and the serial interface boards.
- Note: Replaced by the standard Ethernet network link of the IRC5.
Part to check / replace
ABB 581 points to the hardware below — start here before ordering.
Tap a part for every code that points to it — and verify the exact variant for your controller before ordering.
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 →