The ExclusiveDeviationAlarmTypeis utilized with multiple mutually exclusive limits. It is formally defined in Table 68.
Table 68– ExclusiveDeviationAlarmType definition
Attribute |
Value |
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BrowseName |
ExclusiveDeviationAlarmType |
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IsAbstract |
False |
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References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
Modelling Rule |
Inherits the Propertiesof the ExclusiveLimitAlarmTypedefined in clause 5.8.12.3. |
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HasProperty |
Variable |
SetpointNode |
NodeId |
PropertyType |
Mandatory |
HasProperty |
Variable |
BaseSetpointNode |
NodeId |
PropertyType |
Optional |
The SetpointNode Propertyprovides the NodeIdof the set point used in the Deviationcalculation. If this Variableis not in the AddressSpace, a NULL NodeIdshall be provided.
The BaseSetpointNode Propertyprovides the NodeIdof the original or base setpoint. The value of this node is the value of the set point to which an AdaptiveAlarmcan be reset if any algorithmic changes need to be discarded. The value of this node usually contains the originally configured set point.