|Title||OPC unified architecture – Part 9: Alarms and conditions|
|Committee||TC 65/SC 65E - DEVICES AND INTEGRATION IN ENTERPRISE SYSTEMS|
IEC 62541-9:2020 specifies the representation of Alarms and Conditions in the OPC Unified Architecture. Included is the Information Model representation of Alarms and Conditions in the OPC UA address space. Other aspects of alarm systems such as alarm philosophy, life cycle, alarm response times, alarm types and many other details are captured in documents such as IEC 62682 and ISA 18.2. The Alarms and Conditions Information Model in this specification is designed in accordance with IEC 62682 and ISA 18.2.