IEC 62541-9:2012 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.
IEC 62541-9 Ed. 1.0 b:2012
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OPC unified architecture – Part 9: Alarms and conditions
International Electrotechnical Commission , 07/27/2012
Pages: 182
