OPC Unified Architecture (OPC UA) and the DeltaV system

Assign an OPC UA signal to a function block parameter

The procedure requires a control module with one or more function blocks that support the assign I/O feature. You can assign function block parameters to OPC UA signals. The module you use must be assigned to the client (either an EIOC or a workstation).

  1. Navigate to the function block in DeltaV Explorer (for example, DeltaV System → Control Strategies → Area).
  2. Right-click the function block and then click Assign I/O → To Signal Tag.
  3. The software displays the I/O properties dialog.
  4. Click Browse to find a OPC UA signal tag. The software displays the Browse dialog.
  5. Select a parameter.
  6. Make sure the module is assigned to the workstation or EIOC that hosts the OPC UA client.
  7. Download the OPC UA client host.