SND is a file generated by the OPC server when exporting a node. This format is used if it is necessary to make an identical tag structure in the Script driver. This is used when creating various non-standard tunnels, such as tunnels through the MQTT protocol.
To generate an SND file, call the context menu of the node you want and select Export Node.
In the window that appears, select the path for saving the file.
In the import utility, click on the Open button and open the previously generated file.
All tags of the given node will be loaded into the tree.
You can use the Check and Uncheck buttons to turn the flag on/off for the selected tags.
Use the Access drop-down list to set the desired access type for the selected tags.
After clicking the Import button, the tags will be added to the device.