LogrobotLM

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ABB Error 31115 — Link console fault

Error

ABB 31115 (“Link console fault”): Serial transmission hardware error on serial channel 1 (programming console link). Likely part: Liaison console (link console).

Updated 2026-10-22 · LogrobotLM reference

What it means

Serial transmission hardware error on serial channel 1 (programming console link).

What to check

  • Check the console link wiring.
  • Replace the computer logic board.
  • Note: Similar to FlexPendant or RCC communication faults (32500, 32530) on IRC5.

Part to check / replace

ABB 31115 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

31108Serial link RS232 fault31114CPU main fault31226Floppy disk drive fault

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 →