Siemens SINUMERIK 840DE sl Commissioning Manual page 968

Functionality
5.4 Alarms
5.4.4 Sequence description of alarms
The OPC UA Server automatically sends an object of the "CNCAlarmtype" to the OPC UA
Client containing the single alarm which has just been triggered.
The OPC UA Server automatically resends an object of the "CNCAlarmtype" with the same
content as when the corresponding alarm was triggered, except a change in the status.
To get all the active alarms, the client has to subscribe to the Sinumerik node.
5.4.5 OPC UA Alarms and Conditions Constraints
Below are the features which are not supported in this version:
● Acknowledgements and Confirmation of the alarms.
● Messages
● Part program messages
● Other languages except English
52
SINUMERIK Integrate for Engineering Access MyMachine / OPC UA
Configuration Manual, 12/2017, 6FC5397-1DP40-6BA1