opcUaServer-OpcUaServerAlarmDeviceExt
This component is a child of each Namespace component. Each OPC UA nerver namespace has a frozen slot named AlarmExt that keeps track of all of the alarmable points under this namespace.
The default view for for this component is the Opc Ua Server Device Manager.
When the OPC UA client driver receives an acknowledgement, it attempts to locate the alarm record being acknowledged and acknowledge the alarm. When the driver receives a disable command, it disables the alarm from generating any more OPC UA events from the associated control point until it receives an enable command
Figure 5. OpcUaServerAlarmDeviceExt properties
To view these properties, expand , right-click Alarm Ext and click
| Property | Value | Description |
|---|---|---|
| Alarm Class | drop-down list | Specifies or returns the alarm routing option for the component. |
| Last Received Time | read-only | Reports the last time this extension received an alarm. |