DisplayType property informs how to present numeric values. If DisplayType is not found
in AvailableDisplayTypes, property does not support the type and it is not set. The attempt
to set an unavailable display type as DisplayType is ignored, and the type stays as is.
Display type of all items in GXDeviceList must be changed at the same time.
Assembly: Gurux.Device (Module: Gurux.Device) Version: 5.0.0.1