Glossary

namespace

A container for node IDs (points in the framework). The OPC foundation specifies a predefined namespace with index 0. Many more namespaces belong to specific OPC UA specifications, for example, DI and PLCopen. Every OPC UA specification defines its own node IDs. (from https://stackoverflow.com).

The OpcUaNamespace component under the OpcUaNetwork node in the Nav tree configures the namespace. The OpcUaServerPointDeviceExt component uniquely identifies each specific node.

severity

In OPC UA, alarm severity is specified by an integer range between 1 and 1000. An alarm severity map assigns a level of urgency to each alarm event. An event that transitions:

To Offnormal is urgent. By default it receives a severity index of 700.
To Fault is the most urgent. By default it receives a severity index of 900.
To Normal is the least urgent. By default it receives a severity index of 500.
To Alert is moderately urgent. By default it receives a severity index of 600.

You can configure the severity index for each level of urgency.