OPC UA Addressing

Tag addressing in OPC UA is based on the server’s NodeId.


Tag Address Format: Node Id

Examples

  • ns=2;s=Channel1.Device1.Tag1
  • ns=3;i=1001
  • ns=4;g=550e8400-e29b-41d4-a716-446655440000


Where:

  • ns → Namespace index
  • s → String identifier
  • i → Numeric identifier
  • g → GUID identifier