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
To view these properties, expand , right-click Alarm Ext and click
| Property | Value | Description |
|---|---|---|
| Alarm Class | drop-down list | Specifies the alarm routing
option for the component. Replace provides a selection list of a local alarm classes, from which to select one to use for all alarms received from this device. Use Existing routes alarms from this remote station to any matching alarm class, that is, one with an identical name as that in each alarm record. If the program finds no local matching alarm class, it uses the station's default alarm class. Prepend adds leading text (as specified) to the incoming alarm class string, then routes it to any local matching alarm class in the station. Append adds trailing text (as specified) to the incoming alarm class string, then routes it to any local matching alarm class in the station. |
| Last Received Time | read-only | Reports the last time this extension received an alarm. |