The MachineOperationMonitoringType provides overall monitoring information of the machine tool.

The MachineOperationMonitoringType is formally defined in Table 24.

Table 24 – MachineOperationMonitoringType Definition

Attribute	Value
BrowseName	MachineOperationMonitoringType
IsAbstract	False
References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of the BaseObjectType defined in OPC 10000-5 i.e. inheriting the InstanceDeclarations of that Node.
0:HasComponent	Variable	FeedOverride	0:Double	0:AnalogUnitRangeType	O, RO
0:HasComponent	Variable	PowerOnDuration	0:UInt32	0:BaseDataVariableType	O, RO
0:HasComponent	Variable	OperationMode	MachineOperationMode	0:BaseDataVariableType	M, RO
0:HasComponent	Variable	IsWarmUp	0:Boolean	0:BaseDataVariableType	O, RO

FeedOverride is the combined actual feed override value that is effective for the manufacturing program of the machine tool.

PowerOnDuration is the duration the machine tool has been powered, meaning all systems have line voltage. It is counted in full hours. This value only increases during the lifetime of the machine tool and is not reset when the machine tool is power cycled.

OperationMode contains a MachineOperationMode value as defined in 12.5. The values of the MachineOperationMode enum are derived from the MO modes of machinery functional safety standards. For a machine tool adhering to such a standard, the OperationMode shall show the respective mode. For a machine tool not adhering to such a standard, the OperationMode shall be filled with the appropriate mode available from the MachineOperationMode Enum. The OperationMode is only a representation of the machine tool mode, it shall not be used in a safety relevant manner.

IsWarmUp being True indicates if the machine tool is performing a warmup task. A warmup is not used for production, it is the mode used to reach a stable operating point for the machine tool. An example is reaching the optimal operating temperature. This might be indicated by a hardware switch on the machine tool, a special control command, a special production program (referenced by program name) or otherwise.