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ABB Error 0120 — Printer port fault

Warning

ABB 0120 (“Printer port fault”): Hardware communication error during the self-tests on the printer port. Likely part: Printer port.

Updated 2026-10-22 · LogrobotLM reference

What it means

Hardware communication error during the self-tests on the printer port.

What to check

  • Replace the robot computer board if the external error log printer is to be used.
  • Note: Obsolete.

Part to check / replace

ABB 0120 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

508Floppy disk drive fault509Axis / resolver fault510CPU / PROM fault

Same hardware involved

582Printer port

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 →