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0x00090003

Modbus Slave TCP Start Failed

Wago · PFC200 PLC

¿Qué significa 0x00090003 ?

The MODBUS slave failed to start successfully in TCP mode. This diagnostic message is permanently stored and indicates a configuration error, network issue, or resource conflict preventing the TCP server from initializing. This will prevent MODBUS TCP communication.

Causas comunes

  • Incorrect MODBUS slave TCP configuration settings within the WBM client
  • TCP port conflict with another application or service running on the controller
  • Network interface card (NIC) issues preventing TCP binding on the controller
  • Insufficient system resources for MODBUS slave TCP operation

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Verify the MODBUS slave TCP configuration settings using the WBM client.

  2. 2

    Check for other applications or services using the same TCP port as the MODBUS slave.

  3. 3

    Ensure the controller's network interface is active and properly configured for TCP/IP communication.

  4. 4

    Review controller system logs for more detailed network or resource errors related to the failure.

Ver todos los códigos en este manual (23)
Datos técnicos verificados. Última actualización: March 2026

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