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ABB Error 38204 — Serial Measurement Board (SMB) fault

Error / Erreur

🇫🇷 SMB

SYSTÈME DE MESURE : SMB, RÉSOLVEURS, BATTERIES & CALIBRATION (38xxx, 20032/20033, 50296)

ABB 38204 (“Serial Measurement Board (SMB) fault”): Serial Measurement Board (SMB) fault — ABB robot hardware event on the Serial Measurement Board (SMB) (IRC5). Likely part: SMB (Serial Measurement Board (SMB)) +1 more.

Updated 2026-08-29 · LogrobotLM reference

What it means · Ce que ça veut dire

Serial Measurement Board (SMB) fault — ABB robot hardware event on the Serial Measurement Board (SMB) (IRC5). Seen across controller generations. Severity: Critical. Field diagnosis below (French); your robot's own manual remains authoritative.

Erreur d’offset du signal Y de la SMB.

What to check · Que vérifier

  • Inspect the Serial Measurement Board (SMB), its wiring and connections first.
  • Match this code against your robot's event-log timeline before swapping parts.
  • Follow the French field checks below — they are the tested sequence for this fault.
  • Contrôler la SMB et son câblage; si l’erreur persiste, remplacer la Serial Measurement Board.
  • À savoir : Défaut analogique interne de la chaîne de mesure.

Part to check / replace · Pièce à contrôler / remplacer

ABB 38204 points to the hardware below — start here before ordering. · 38204 met en cause l'organe ci-dessous : commencez par là.

Tap a part for every code that points to it — and verify the exact variant for your controller before ordering. · Touchez une pièce pour tous les codes qui la citent ; vérifiez la variante exacte avant commande.

Frequently asked · Questions fréquentes

What does ABB error 38204 mean?
ABB 38204 (“Serial Measurement Board (SMB) fault”): Serial Measurement Board (SMB) fault — ABB robot hardware event on the Serial Measurement Board (SMB) (IRC5). Seen across controller generations. Severity: Critical. Field diagnosis below (French); your robot's own manual remains authoritative.
How do you troubleshoot ABB error 38204?
Inspect the Serial Measurement Board (SMB), its wiring and connections first. Match this code against your robot's event-log timeline before swapping parts. Follow the French field checks below — they are the tested sequence for this fault.
Which part is involved in ABB 38204?
38204 points to SMB (Serial Measurement Board (SMB)), DSQC 633 (Serial Measurement Board (SMB)). Confirm the real cause against the robot backup before replacing a part.

Related codes / Codes liés

20032Revolution counter not updated20033Axis not synchronized38034Controller hardware fault

Same hardware involved / Même matériel en cause

38203SMB38205SMB38206SMB38207SMB

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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →