base

Type: String
Required: Yes

"base": "tchmi-control"

This property determines whether the control inherits the properties of another control. By default, a framework control inherits all properties of Description.json of the base control tchmi-control, which defines a base framework for all TwinCAT HMI controls. The control can be made to inherit from other controls, such as a button, if a particular control is to be extended. The control name to be specified here corresponds to the control type or control name defined in Description.json.

base 1:

Validity

This property must refer to a valid control and must not have the value null, otherwise the control can no longer be used in the Engineering.