The MonitoringTypeis used to structure information given in the MachineToolType. It contains the monitoring information of the machine tool and its subsystems.

The MonitoringTypeis formally defined in Table 14.

Table 14– MonitoringType Definition

Attribute

Value

BrowseName

MonitoringType

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of the BaseObjectTypedefined in OPC 10000-5i.e. inheriting the InstanceDeclarations of that Node.

0:HasComponent

Object

<MonitoredElement>

ElementMonitoringType

OP

0:HasComponent

Object

MachineTool

MachineOperationMonitoringType

M

0:HasComponent

Object

Stacklight

4:BasicStacklightType

O

<MonitoredElement> is an optional Placeholder for ElementMonitoringTypeinstances. This allows for any number of such instances as a component of the MonitoringType. For the DisplayName, it is recommended to use the value of the NameProperty of the respective ElementMonitoringTypeinstance.

MachineToolprovides overall monitoring information of the machine tool.

Stacklightcontains the information about a stacklight’s composition and status. It is an object of BasicStacklightType, defined in OPC 10000-200. If the machine tool has a stacklight available, the Stacklightshall be present.

The optional 4:StackLevelTypeand 4:StackRunningType of the 4:BasicStacklightTypeshall not be used, only a segmented light shall be shown. Thus, the 4:StacklightModeof each stacklight has to be “Segmented” (0).

As 4:<StackElement>, only elements of 4:StackElementLightTypeshall be used. For these, the 4:SignalOn, 4:SignalColorand 4:SignalModeshall be used, not the 4:ControlChannelType(see Table 15).

Table 15– MonitoringType Additional Subcomponents

Source Path

References

NodeClass

BrowseName

DataType

TypeDefinition

Other

Stacklight

0:HasOrderedComponent

Object

0:<OrderedObject>

4:StackElementLightType

MP

Stacklight

0:<OrderedObject>

0:HasProperty

Variable

4:SignalOn

0:Boolean

0:PropertyType

M, RO

Stacklight

0:<OrderedObject>

0:HasComponent

Variable

4:SignalColor

4:SignalColor

0:BaseDataVariableType

M, RO

Stacklight

0:<OrderedObject>

0:HasComponent

Variable

4:SignalMode

4:SignalModeLight

0:BaseDataVariableType

M, RO

The ElementMonitoringTypeis intended to be a supertype for all monitoring information that is specific to a particular element within the machine tool. An element doesn’t have to be a physical component. Examples for such elements are NC channels or spindles. It is an abstract type, meaning it is not instantiated, only the subtypes are.

The ElementMonitoringTypeis formally defined in Table 16.

Table 16– ElementMonitoringType Definition

Attribute

Value

BrowseName

ElementMonitoringType

IsAbstract

True

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of the BaseObjectTypedefined in OPC 10000-5i.e. inheriting the InstanceDeclarations of that Node.

0:HasSubtype

ObjectType

ChannelMonitoringType

Defined in 8.3.7

0:HasSubtype

ObjectType

WorkingUnitMonitoringType

Defined in 8.3.3

0:HasProperty

Variable

Name

0:String

0:PropertyType

M, RO

The Nameproperty refers to a name of the element.

The WorkingUnitMonitoringTypeis a supertype used to group monitoring information of machine tool elements that are a direct and active part of the machining process. It is an abstract type, meaning it is not instantiated, only the subtypes are.

The WorkingUnitMonitoringTypeis formally defined in Table 17.

Table 17– WorkingUnitMonitoringType Definition

Attribute

Value

BrowseName

WorkingUnitMonitoringType

IsAbstract

True

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of the ElementMonitoringTypedefined in 8.3.2i.e. inheriting the InstanceDeclarations of that Node.

0:HasSubtype

ObjectType

SpindleMonitoringType

Defined in 8.3.6

0:HasSubtype

ObjectType

LaserMonitoringType

Defined in 8.3.4

0:HasSubtype

ObjectType

EDMGeneratorMonitoringType

Defined in 8.3.5

The WorkingUnitMonitoringTypehas no other explicitly defined Referencesthan HasSubtype References.

The LaserMonitoringTypeprovides basic monitoring information of a laser device used in the machining process, i.e. a beam source for a laser beam used as a tool.

The LaserMonitoringTypeis formally defined in Table 18.

Table 18– LaserMonitoringType Definition

Attribute

Value

BrowseName

LaserMonitoringType

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of the WorkingUnitMonitoringTypedefined in 8.3.3i.e. inheriting the InstanceDeclarations of that Node.

0:HasComponent

Variable

ControllerIsOn

0:Boolean

0:BaseDataVariableType

M, RO

0:HasComponent

Variable

LaserState

LaserState

0:BaseDataVariableType

M, RO

ControllerIsOnbeing True indicates that the controller of the laser device is running. This gives no indication whether laser light is currently emitted.

LaserStateindicates the current state of a laser device. It is defined in 12.4.

The EDMGeneratorMonitoringTypeis a collection of information about the EDM spark generator

The EDMGeneratorMonitoringTypeis formally defined in Table 19

Table 19– EDMGeneratorMonitoringType Definition

Attribute

Value

BrowseName

EDMGeneratorMonitoringType

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of the WorkingUnitMonitoringTypedefined in 8.3.3i.e. inheriting the InstanceDeclarations of that Node.

0:HasComponent

Variable

IsOn

0:Boolean

0:BaseDataVariableType

M, RO

0:HasComponent

Variable

EDMGeneratorState

EDMGeneratorState

0:BaseDataVariableType

M, RO

IsOnbeing True indicates that the EDM spark generator has a valid set of technology parameters, meets all safety conditions required and is switched on.

EDMGeneratorStateindicates the current state of the EDM spark generator. It is defined in 12.3.

The SpindleMonitoringTypeis a collection of information about the rotary process axis.

Depending on the actual context of the machine tool, this may for example be a tool-holding milling spindle or a workpiece-holding turning spindle.

The SpindleMonitoringTypeis formally defined in Table 20.

Table 20– SpindleMonitoringType Definition

Attribute

Value

BrowseName

SpindleMonitoringType

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of the WorkingUnitMonitoringTypedefined in 8.3.3i.e. inheriting the InstanceDeclarations of that Node.

0:HasComponent

Variable

IsRotating

0:Boolean

0:BaseDataVariableType

M, RO

0:HasComponent

Variable

Override

0:Double

0:AnalogUnitRangeType

O, RO

0:HasComponent

Variable

IsUsedAsAxis

0:Boolean

0:BaseDataVariableType

O, RO

IsRotatingbeing True indicates if the spindle is rotating and has a valid commanded rotation speed.

Overrideis representing the current value of the spindle override.

IsUsedAsAxisbeing True indicates if the monitored element is used as an axis or, if False, as a spindle. If IsUsedAsAxisis True, the values of IsRotatingand Overrideshall not be used by a client.

The ChannelMonitoringTypeprovides the monitoring information about one NC channel.

The ChannelMonitoringTypeis formally defined in Table 21.

Table 21– ChannelMonitoringType Definition

Attribute

Value

BrowseName

ChannelMonitoringType

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of the ElementMonitoringTypedefined in 8.3.2i.e. inheriting the InstanceDeclarations of that Node.

0:HasSubtype

ObjectType

CombinedChannelMonitoringType

Defined in 8.3.8

0:HasComponent

Variable

ChannelState

ChannelState

0:BaseDataVariableType

M, RO

0:HasComponent

Variable

ChannelMode

ChannelMode

0:BaseDataVariableType

M, RO

0:HasComponent

Variable

FeedOverride

0:Double

0:AnalogUnitRangeType

M, RO

0:HasComponent

Variable

RapidOverride

0:Double

0:AnalogUnitRangeType

O, RO

0:HasComponent

Object

ChannelModifiers

ChannelModifierType

O

ChannelStateis representing the current status of the NC channel and is defined in 12.1.

ChannelModeis representing the current mode the NC channel operates in. It is defined in 12.2.

FeedOverrideis representing the current value of the feed override of the NC channel.

RapidOverrideis representing the current value of the rapid override of the NC channel.

ChannelModifiersis representing additional program modifiers usually used during special operations of the machine tool, e.g. preparation of production (see 8.3.10).

The CombinedChannelMonitoringTypeis a subtype of the ChannelMonitoringTypeand inherits all its InstanceDeclarations. Using this type instead of a ChannelMonitoringTypeprovides an aggregated representation of the channels in a machine tool. The rules for aggregation are given in Table 22. Sometimes it is not necessary to provide one representation per individual channel, e.g. if one channel is of primary interest, the status of the remaining channels is irrelevant for the machine tool status. It could be used together with the separate channels. Typical applications are multi-spindle machines in which a large number of channels are used for interlinked work steps.

Table 22– Rules for Aggregation of the CombinedChannelMonitoringType

Component of the CombinedChannelMonitoringType

Rule for Aggregation

ChannelState

Mode of the channel not in “active”, otherwise “active”

- if all channels active --> active

- if >0 channel reset --> reset

- else interrupted

ChannelMode

Mode of the channel not in “automatic”, otherwise “automatic”

If one or more channel of the combined channels is not in "automatic" the machine tool is not producing (except if the channel is not currently in use). If for example the operator is in JogManualand moving one axis, the whole machine tool is not producing in automatic and the combined channel can be viewed as in JogManual

FeedOverride

selection from HMI mirrored

On most multi spindle machines there is one HMI which controls the whole machine tool, so most of the input is applied to all combined channels

RapidOverride

selection from HMI mirrored

On most multi spindle machines there is one HMI which controls the whole machine tool, so most of the input is applied to all combined channels

ChannelModifiers

If an element of ChannelModifiersis True in any channel, it has to be True in the combined channel.

The CombinedChannelMonitoringTypeis formally defined in Table 23.

Table 23– CombinedChannelMonitoringType Definition

Attribute

Value

BrowseName

CombinedChannelMonitoringType

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of the ChannelMonitoringTypedefined in 8.3.7i.e. inheriting the InstanceDeclarations of that Node.

The CombinedChannelMonitoringTypecontains no further Referencesthan the ones inherited.

The MachineOperationMonitoringTypeprovides overall monitoring information of the machine tool.

The MachineOperationMonitoringTypeis 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 BaseObjectTypedefined in OPC 10000-5i.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

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

PowerOnDurationis 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.

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

IsWarmUpbeing 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.

The ChannelModifierTypeallows to show which modifiers are used while the machine tool is performing pre-production tests and similar tasks.

The ChannelModifierTypeis formally defined in Table 25.

Table 25– ChannelModifierType Definition

Attribute

Value

BrowseName

ChannelModifierType

IsAbstract

False

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of the BaseObjectTypedefined in OPC 10000-5i.e. inheriting the InstanceDeclarations of that Node.

0:HasComponent

Variable

BlockSkip

0:Boolean

0:BaseDataVariableType

O, RO

0:HasComponent

Variable

DryRun

0:Boolean

0:BaseDataVariableType

M, RO

0:HasComponent

Variable

OptionalStop

0:Boolean

0:BaseDataVariableType

M, RO

0:HasComponent

Variable

TestMode

0:Boolean

0:BaseDataVariableType

O, RO

0:HasComponent

Variable

SingleStep

0:Boolean

0:BaseDataVariableType

M, RO

BlockSkipbeing True indicates that specially marked NC program blocks are skipped.

DryRunbeing True indicates that a test run using with a dedicated axis feed is being performed.

OptionalStopbeing True indicates that the execution will stop at special machine commands.

TestModebeing True indicates a test mode which enables execution of a program without physical axis movement. The machining process may be simulated during program execution.

SingleStepbeing True indicates if the NC channel operates in single block/single step mode.