10 OPC UA DataTypes 
10.4 Enumeration datatypes
10.4.11 SupportedTransfer
SupportedTransfer is an enumeration that defines the types of transfers provided for a device. Its values are defined in Table 54.
| Name | Value | Description |
|---|---|---|
| None | 0 | The DTM does not support upload / download at all. |
| OnlyDownload | 1 | The DTM supports only writing data to the device. Reading data to the device is not supported. |
| OnlyUpload | 2 | The DTM supports only reading data from the device. Writing data to the device is not supported. |
| BothUploadAndDownload | 3 | The DTM supports both reading values from the device and writing values to the device. |