How can I set an IP-address using Openness?

[SchuhTo]

How is it possible to set an IP-address of a device using Openness? Is there a service that can be used?

[GitGudGarcia]

There is a NetworkInterface service on a PLC device item that exposes a NodeComposition.
And a Node has 2 dynamic attributes "Address" and "SubnetMask".

I wrote it like this:
//Set ip and subnet mask
DeviceItem pnInterface = plc.DeviceItems.Where((di) => di.Name.StartsWith("PROFINET", StringComparison.InvariantCulture)).Single();
NetworkInterface networkInterface = pnInterface.GetService();
Node node = networkInterface.Nodes[0];
node.SetAttribute("Address", "192.168.0.1");
node.SetAttribute("SubnetMask", "255.255.224.0");

That works for my PLC. You asked for device. It might be different for other devices.
Hope this helps :)