ABB Error 511 — Memory DSMB 125 fault
ErrorABB 511 (“Memory DSMB 125 fault”): RAM size fault. Likely part: Mémoire DSMB 125 (memory DSMB 125).
Updated 2026-10-22 · LogrobotLM reference
What it means
RAM size fault. The DSMB 125 memory board is missing or has physically failed.
What to check
- Correct the cause of the error.
- Reload the functional parameters from the PROM or the DISK.
- Note: Specific to the S2/S3-era DSMB 125 memory expansion board.
Part to check / replace
ABB 511 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 →