This SystemOffNormalAlarmType is raised by the Server when the UpdateFrequency elapses and the Trust List has not been updated. This alarm automatically returns to normal when the Trust List is updated.
Table 20 – TrustListOutOfDateAlarmType definition
Attribute |
Value |
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BrowseName |
TrustListOutOfDateAlarmType |
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Namespace |
CORE (see 3.3) |
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IsAbstract |
False |
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References |
NodeClass |
BrowseName |
DataType |
TypeDefinition |
ModellingRule |
Subtype of the SystemOffNormalAlarmType defined in OPC 10000-9. |
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HasProperty |
Variable |
TrustListId |
NodeId |
PropertyType |
Mandatory |
HasProperty |
Variable |
LastUpdateTime |
UtcTime |
PropertyType |
Mandatory |
HasProperty |
Variable |
UpdateFrequency |
Duration |
PropertyType |
Mandatory |
TrustListId Property specifies the NodeId of the out of date Trust List Object.
LastUpdateTime Property specifies when the Trust List was last updated.
UpdateFrequency Property specifies how frequently the Trust List needs to be updated.