The MaintenanceType provides Variables useful for sensor maintenance and is formally defined in Table 93.
Table 93 – MaintenanceType Definition
| Attribute | Value | ||||
| BrowseName | MaintenanceType | ||||
| IsAbstract | False | ||||
| References | Node Class | BrowseName | DataType | TypeDefinition | Other | 
| Subtype of the 2:FunctionalGroupType defined in OPC 10000-100, i.e. inheriting the InstanceDeclarations of that Node | |||||
| 0:HasComponent | Variable | RealTimeSinceLastService | 0:Double | 0:BaseAnalogType | M, RO | 
| 0:HasComponent | Variable | RealTimeToNextService | 0:Double | 0:BaseAnalogType | M, RO | 
The InstanceDeclarations of the MaintenanceType have additional Attributes defined in Table 94.
Table 94 – MaintenanceType Attribute values for child Nodes
| Source Path | Value Attribute | Description Attribute | 
| RealTimeSinceLastService | 
 | Real time passed since the sensor was last serviced. | 
| RealTimeToNextService | 
 | Real time left until the sensor is scheduled for the next servicing. |