OPC UA alarms form WinCC/PCS7
I am having a problem with an OPC UA client in WinCC OA. I connected it to the WinCC OPC UA server. I received the current data without problems. But I also wanted to receive alarms and events over OPC UA. And here i have the problem.
The WinCC OA help says: In the peripheral address the corresponding condition (state) must be selected. Depending on the alarm type in the subscription configuration panel the browsing is carried out (Get Item ID button in the Peripheral address panel) in the corresponding mode. But the WinCC help says that it does not transmit the event address, but only the address of the root element: The OPC UA server forwards WinCC message status changes to OPC UA clients with WinCC-Event-Notifications via Subscriptions and Monitored Event Items but does not maintain a Condition instance in its name area. The Event Notifier node to be used is the start node of the WinCC name area. The UA client can filter the messages and define the list of message attributes returned.
In WinCC OA, peripheral address, OPC UA server elements i don't find condition elements under node name @LOCALMACHINE:: (see picture 1) and can't set peripheral address correctly. But third part software UAExpert show alarms under root node correctly (see picture 2).
How i can solve the problem?