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TSM_E_INVALIDITEMSUBTYPE

Invalid Item SubType for Creation

Beckhoff · TwinCAT 2 Automation Interface

¿Qué significa TSM_E_INVALIDITEMSUBTYPE ?

The provided nSubType parameter for creating a child item is invalid or not compatible with the parent item's type (0x98510003). The usable subType depends on the parent tree item's category; for example, a PLC Functionblock may only be added to a PLCFOLDER item, not a DEVICE item.

Causas comunes

  • An attempt was made to create a TwinCAT item with an invalid sub-type.
  • Trying to instantiate a device object with incorrect attributes.
  • Incorrect configuration parameters for a specific sub-component type.

Pasos de reparación & Lista de verificación

Haga clic en los pasos para seguir su progreso.

  1. 1

    Verify the nSubType value against the documentation for the specific parent item type where the child is being created.

  2. 2

    Ensure the nSubType is appropriate for the itemType of the parent node to which the child is being added.

  3. 3

    Review 'ITcSmTreeItem Item Types' (page 39) and 'ITcSmTreeItem Item Sub Types' (page 41) for valid combinations and dependencies.

Ver todos los códigos en este manual (12)
Datos técnicos verificados. Última actualización: March 2026

Fallas relacionadas

Fuente: Beckhoff TwinCAT 2 Automation Interface