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20-1
Required license missing or expired
Allen-Bradley · Logix 5000
¿Qué significa 20-1 ?
A required license is either missing or has expired during the controller's transition to run or test mode. This prevents the controller from entering an operational state.
Causas comunes
- Required license missing or expired during transition to run or test mode
Pasos de reparación & Lista de verificación
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- 1
Insert a CmCard containing all licenses required by the project in the controller.
Datos técnicos verificados. Última actualización: March 2026
Fallas relacionadas
Fuente: Logix 5000