Title | OPC Unified Architecture - Part 9: Alarms and Conditions |
Version | 2020 |
Document Number | 62541-9 |
Release Date | 2020 |
Reference | https://webstore.iec.ch/publication/61118 |
EC 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.
This third edition cancels and replaces the second edition published in 2015. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
RateOfChange
alarmsAlarmConditionType
States:
Suppression
Silence
OutOfService
Latched
AlarmConditionType
Properties:
OnDelay
OffDelay
FirstInGroup
ReAlarmTime
DiscrepencyAlarm
DeviationAlarm
InstrumentDiagnosticAlarm
SystemDiagnosticAlarm
ConditionClasses
:
Safety
HighlyManaged
Statistical
Testing
Training
CertificateExpiration
AlarmType
See also: