Tag Writes Enabled for OPC UA Client Applications

You can now write to Plant SCADA tags directly from an OPC UA client application connected to a Plant SCADA OPC UA Server.

To do this, you need to set the Write Roles property for each variable tag that will have writes enabled. The Property Grid allows you to select one of the roles configured in your Plant SCADA project, or you can manually enter a comma-separated list to include multiple roles. See Add a Variable Tag.

To write to a variable tag, the user that is currently logged in to the OPC UA client application needs to be part of a Windows™ domain group that is associated with the role specified in the Write Roles property.

Note: Tag writes will only work if encryption is enabled for the OPC UA Server.

For more information, see Confirm the Settings for an OPC UA Server.