The ExclusiveDeviationAlarmType is 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 Properties of the ExclusiveLimitAlarmType defined in clause 5.8.12.3. |
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|
HasProperty |
Variable |
SetpointNode |
NodeId |
PropertyType |
Mandatory |
|
HasProperty |
Variable |
BaseSetpointNode |
NodeId |
PropertyType |
Optional |
The SetpointNode Property provides the NodeId of the set point used in the Deviation calculation. If this Variable is not in the AddressSpace, a NULL NodeId shall be provided.
The BaseSetpointNode Property provides the NodeId of the original or base setpoint. The value of this node is the value of the set point to which an AdaptiveAlarm can be reset if any algorithmic changes need to be discarded. The value of this node usually contains the originally configured set point.