| NodeId | ns=1;i=7001 | 
| NodeClass | Method | 
| BrowseName | 1:OperationOn | 
| DisplayName | OperationOn | 
| Description | The Method OperationOn turns the machine on. It should only be available on the filter unit if the filter unit is considered a machine, rather than a component of a larger machine. If the filter unit is only a component of a larger machine, the OperationOn Method should be present on the filter system. | 
| Parent | 1:FilterUnitType |