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C407H

Connection Number Setting Error

Mitsubishi Electric · MELSEC iQ-R Module Dedicated Instructions

¿Qué significa C407H ?

This error occurs if the fixed buffer send/receive mode (e.g., send) of the specified connection (1 to 16) has an invalid combination with the communication type of the protocol to be executed (e.g., receive only) for the Ethernet module.

Causas comunes

  • The fixed buffer send/receive mode of connection numbers 1 to 16 is incompatible with the communication type of the protocol being executed (e.g., send mode with receive-only protocol).

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Review the fixed buffer send/receive mode settings for Ethernet module connection numbers 1-16 to ensure compatibility with the communication type of the executed protocol.

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Datos técnicos verificados. Última actualización: March 2026

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Fuente: Mitsubishi Electric MELSEC iQ-R Module Dedicated Instructions