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4185H

Ethernet I/F Error - Connection Disconnected

Mitsubishi Electric · MELSEC System Q/L Series

Was bedeutet 4185H ?

The connection to the target device was disconnected prematurely, either before sending a response using the MC protocol or during ongoing communication. This error can sometimes be a symptom of other underlying communication issues, such as a buffer overflow (4184H).

Häufige Ursachen

  • Connection to the target device disconnected before sending a response using the MC protocol.
  • Connection to the target device disconnected during communication.
  • Other errors, such as 4184H, may be contributing to the disconnection.

Reparaturschritte & Checkliste

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

  1. 1

    For MC protocol, ensure the connection is maintained until a response to the request has been successfully sent.

  2. 2

    Maintain the connection until a complete sequence of communication transactions is finished.

  3. 3

    If any other error has occurred, take corrective action for that error first.

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Verifizierte technische Daten. Zuletzt aktualisiert: March 2026

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Quelle: Mitsubishi Electric MELSEC System Q/L Series