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2126

Multiple CPU System Layout Error (CPU Placement)

Mitsubishi Electric · MELSEC System Q/L Series

¿Qué significa 2126 ?

This error occurs in multiple CPU systems due to incorrect placement of CPU modules. It is triggered by empty slots existing between a QCPU and another QCPU or motion controller. Additionally, mounting any module other than a High-performance model QCPU/Process CPU (including motion controllers) to the left of a High-performance model QCPU/Process CPU will also cause this error. The CPU will stop operation.

Causas comunes

  • Empty slots are present between CPU modules (QCPU and QCPU/motion controller) in a multiple CPU system.
  • A module other than a High-performance model QCPU or Process CPU is mounted to the left of a High-performance model QCPU/Process CPU.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Mount modules into all available slots such that any empty slots are located to the right-hand side of the CPU module.

  2. 2

    Remove any incorrect module mounted to the left of a High-performance model QCPU/Process CPU.

  3. 3

    Mount the High-performance model QCPU/Process CPU on an empty slot, ensuring the motion CPU is mounted to its right-hand side.

Ver todos los códigos en este manual (53)
Datos técnicos verificados. Última actualización: March 2026

Fallas relacionadas

Fuente: Mitsubishi Electric MELSEC System Q/L Series