OPC UA is a machine to machine communication protocol which is on our disposal while creating a new device on DeMa. If user choose this protocol, only one data format is available, with the same name as protocol "OPC UA" and it cannot be change. What can be noticed here is that the name of the device is changed and automatically set to "Manual_mes", which also cannot be changed.

With choosing OPC UA as a protocol, few inputs are added to the device, like OPC Server endpoint on which IoT agent subscribes in order to receive measures

Also it's added a new select menu where user can choose devices managed by the current OPC Server, which by default is set to name of a current device.

As can be seen on the following picture many new attributes are added to this device.

After this, user can continue with creation of new device choosing this protocol, proceeding as described in device registration.