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ERR_SOCKET_UNLISTEN
Socket error during Unlisten operation
Allen-Bradley · MicroLogix 1400 Programmable Controllers
¿Qué significa ERR_SOCKET_UNLISTEN ?
An error occurred during the socket unlisten operation. This indicates a failure to properly stop listening for incoming connections, which could leave resources held or in an unstable state.
Causas comunes
- System resource conflict preventing the release of the listen socket.
- Internal operating system error during the unlisten process.
- Modbus TCP port is still actively being accessed by other processes.
Pasos de reparación & Lista de verificación
Haga clic en los pasos para seguir su progreso.
- 1
Restart the controller to force a clean shutdown and release of network services.
- 2
Verify that no other processes are interfering with the Modbus TCP listener port.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Allen-Bradley MicroLogix 1400 Programmable Controllers