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.