An OPC UA Tag object is an object used to read or write values from a device. A Tag reading is performed automatically by an OPC UA server, with a scan time defined on the OPC UA Subscription in which it is inserted. To use this resource, follow these procedures:

1.Right-click an OPC UA Subscription object and select the Insert - OPC UA Tag option.

Inserting an OPC UA Tag

A window is opened asking how many Tags must be created on the Subscription, and their names. This name is auto-incremented and, if this option is left blank, these Tags are created with a default name.

Configuring the number of Tags

Some properties of an OPC UA Tag can be configured using the Properties List, without creating scripts for this. If users want to configure any property, locate it on the Properties List and perform the settings. For more information, please check E3 Reference and Scripts Manual.