7 Standard VariableTypes 
7.12 SubscriptionDiagnosticsType 
This complex VariableType is used for diagnostic information. Its DataVariables reflect its DataType, having the same semantic defined in 12.15. The VariableType is formally defined in Table 77.
Table 77 – SubscriptionDiagnosticsType definition
| Attribute | Value | ||||
|---|---|---|---|---|---|
| BrowseName | SubscriptionDiagnosticsType | ||||
| IsAbstract | False | ||||
| ValueRank | −1 (−1 = Scalar) | ||||
| DataType | SubscriptionDiagnosticsDataType | ||||
| References | Node Class | BrowseName | DataType | TypeDefinition | Modelling Rule |
| Subtype of the BaseDataVariableType defined in 7.4. | |||||
| HasComponent | Variable | SessionId | NodeId | BaseDataVariableType | Mandatory |
| HasComponent | Variable | SubscriptionId | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | Priority | Byte | BaseDataVariableType | Mandatory |
| HasComponent | Variable | PublishingInterval | Duration | BaseDataVariableType | Mandatory |
| HasComponent | Variable | MaxKeepAliveCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | MaxLifetimeCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | MaxNotificationsPerPublish | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | PublishingEnabled | Boolean | BaseDataVariableType | Mandatory |
| HasComponent | Variable | ModifyCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | EnableCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | DisableCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | RepublishRequestCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | RepublishMessageRequestCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | RepublishMessageCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | TransferRequestCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | TransferredToAltClientCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | TransferredToSameClientCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | PublishRequestCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | DataChangeNotificationsCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | EventNotificationsCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | NotificationsCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | LatePublishRequestCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | CurrentKeepAliveCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | CurrentLifetimeCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | UnacknowledgedMessageCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | DiscardedMessageCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | MonitoredItemCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | DisabledMonitoredItemCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | MonitoringQueueOverflowCount | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | NextSequenceNumber | UInt32 | BaseDataVariableType | Mandatory |
| HasComponent | Variable | EventQueueOverflowCount | UInt32 | BaseDataVariableType | Mandatory |
| Conformance Units | |||||
| Base Info ServerType |