About UDTs

InTouch HMI provides support for UDTs. You can see the User defined type pane on the left side of WindowMaker. It includes the following:

• Search box - search for the required data type, derived data type, instance, or a member.

• Toolbar - the toolbar includes the following options:

  • Add new data type

  • Add new member

  • Add new instance

  • Delete

  • Import data types

  • Export data types

  • Add location members

The User defined type hierarchy can include these items in the following order:

1. Direct member - Members that are defined within the current user defined type.

2. Inherited members - Members that are inherited from other data types. These are shown as grayed-out.

3. Derived data type - A data type that is derived from a base data type (base data types are read-only and are predefined in InTouch). It includes all the members that are under the base data type from which it was derived. You can add additional members to the derived data type, apart from the existing items. The base data type and derived data type are prefixed with $ sign by default. If you rename a derived type, it still must have $ as the first character of its name.

4. Instance - An instance represents a physical or virtual object of the user defined type. You must create instance to be able to use the user defined type in graphic animations or scripting. An instance tag member is an InTouch basic tag.

   Note: You can edit UDTs in the Properties grid. You cannot view or edit UDTs in the Tagname dictionary.