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5.8.17.7 CertificateExpirationAlarmType

This SystemOffNormalAlarmType is raised by the Server when the Server’s Certificate is within the ExpirationLimit of expiration. This Alarm automatically returns to normal when the certificate is updated.

Table 77 – CertificateExpirationAlarmType definition

Attribute

Value

BrowseName

CertificateExpirationAlarmType

IsAbstract

False

References

NodeClass

BrowseName

DataType

TypeDefinition

ModellingRule

Subtype of the SystemOffNormalAlarmType defined in clause 5.8.17.3

HasProperty

Variable

ExpirationDate

DateTime

PropertyType

Mandatory

HasProperty

Variable

ExpirationLimit

Duration

PropertyType

Optional

HasProperty

Variable

CertificateType

NodeId

PropertyType

Mandatory

HasProperty

Variable

Certificate

ByteString

PropertyType

Mandatory

ExpirationDate is the date and time this certificate will expire.

ExpirationLimit is the time interval before the ExpirationDate at which this Alarm will trigger. This shall be a positive number. If the property is not provided, a default of 2 weeks shall be used.

CertificateType – See OPC 10000-12 for definition of CertificateType.

Certificate is the certificate that is about to expire.

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