Mapping of DataTypes – OPC UA for Computerized Numerical Control (CNC) Systems – for CNC Systems: OPC UA Information Model

7 Mapping of DataTypes

7.1 Primitive data types

This information model does not define additional primitive data types.

7.2 Enumeration DataTypes

When using the following enumeration DataTypes, one of the given enumeration values has to be used. Hence, manufacturer specific extensions are not possible.

7.2.1 CncAxisStatus

This DataType is an enumeration that describes possible states of a CNC axis. Its values are defined in Table 18.

Table 18 – CncAxisStatus Enumeration Values

Value	Description
InPosition_0	CNC Axis reached commanded position
Moving_1	CNC Axis is moving to reach commanded position
Parked_2	CNC Axis is configured but not active

Its representation in the AddressSpace is defined in Table 19.

Table 19 – CncAxisStatus Enumeration Definition

Attribute	Value
BrowseName	CncAxisStatus
IsAbstract	False

References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Inherit the components of the Enumeration
HasProperty	Variable	EnumValues	EnumValueType[]	PropertyType	Mandatory

7.2.2 CncSpindleStatus

This DataType is an enumeration that describes possible states of a CNC spindle. Its values are defined in Table 20.

Table 20 – CncSpindleStatus Enumeration Values

Value	Description
Stopped_0	CNC Spindle stopped
InTargetArea_1	CNC Spindle reached commanded velocity
Accelerating_2	CNC Spindle accelerating
Decelerating_3	CNC Spindle decelerating
Parked_4	CNC Spindle configured but not active

Its representation in the AddressSpace is defined in Table 21.

Table 21 – CncSpindleStatus Enumeration Definition

Attribute	Value
BrowseName	CncSpindleStatus
IsAbstract	False

References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Inherit the components of the Enumeration
HasProperty	Variable	EnumValues	EnumValueType[]	PropertyType	Mandatory

7.2.3 CncSpindleTurnDirection

This DataType is an enumeration that describes possible turn directions of a CNC spindle. Its values are defined in Table 22.

Table 22 – CncSpindleTurnDirection Enumeration Values

Value	Description
None_0	No rotation
CW_1	Clockwise
CCW_2	Counter Clockwise

Its representation in the AddressSpace is defined in Table 23.

Table 23 – CncSpindleTurnDirection Enumeration Definition

Attribute	Value
BrowseName	CncSpindleTurnDirection
IsAbstract	False

References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Inherit the components of the Enumeration
HasProperty	Variable	EnumValues	EnumValueType[]	PropertyType	Mandatory

7.2.4 CncChannelStatus

This DataType is an enumeration that describes possible states of a CNC channel. Its values are defined in Table 24.

Table 24 – CncChannelStatus Enumeration Values

Value	Description
Active_0	Channel active (regular execution of CNC channel)
Interrupted_1	Channel interrupted (e.g. due to an error)
Reset_2	Channel resetting (activate initial state)

Its representation in the AddressSpace is defined in Table 25.

Table 25 – CncChannelStatus Enumeration Definition

Attribute	Value
BrowseName	CncChannelStatus
IsAbstract	False

References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Inherit the components of the Enumeration
HasProperty	Variable	EnumValues	EnumValueType[]	PropertyType	Mandatory

7.2.5 CncChannelProgramStatus

This DataType is an enumeration that describes possible states of the CNC part program execution within a CNC channel. Its values are defined in Table 26.

Table 26 – CncChannelProgramStatus Enumeration Values

Value	Description
Stopped_0	Active CNC part program in channel stopped (regular stop of CNC part program execution)
Running_1	Active CNC part program in channel running (error-free execution of CNC part program)
Waiting_2	Active CNC part program in channel in waiting state(e.g. dwell time or waiting for event)
Interrupted_3	Active CNC part program in channel interrupted (e.g. due to M00 or M01 command programmed in CNC part program)
Canceled_4	Active CNC part program in channel canceled (irregular stop of CNC part program execution)

Its representation in the AddressSpace is defined in Table 27.

Table 27 – CncChannelProgramStatus Enumeration Definition

Attribute	Value
BrowseName	CncChannelProgramStatus
IsAbstract	False

References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Inherit the components of the Enumeration
HasProperty	Variable	EnumValues	EnumValueType[]	PropertyType	Mandatory

7.2.6 CncOperationMode

This DataType is an enumeration that describes possible operation modes of a CNC channel. Its values are defined in Table 28.

Table 28 – CncOperationMode Enumeration Values

Value	Description
Manual_0	Operation mode Manual –incremental axis movement triggered by user
MDA_1	Operation mode MDA – manual data input and execution
Automatic_2	Operation mode automatic – execute CNC part programs

Its representation in the AddressSpace is defined in Table 29.

Table 29 – CncOperationMode Enumeration Definition

Attribute	Value
BrowseName	CncOperationMode
IsAbstract	False

References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Inherit the components of the Enumeration
HasProperty	Variable	EnumStrings	LocalizedText[]	PropertyType	Mandatory

7.3 OPC UA Structure DataTypes

7.3.1 General

This section is for describing all structure data types.

7.3.2 CncPositionDataType

This DataType combines position values that are of common interest. CncPositionDataType comprises the current position value, the setpoint position value and the remaining distance to go for a positioning unit. The position values can be of any type (rotation, linear or similar). CncPositionDataType is defined in Table 30.

Table 30 – CncPositionDataType Structure

Name	Type	Description
CncPositionDataType	Structure	Structure of position elements.
ActPos	Double	Position current value.
CmdPos	Double	Position setpoint value.
RemDist	Double	Remaining distance.

Its representation in the AddressSpace is defined in Table 31.

Table 31 – CncPositionDataType Definition

Attributes	Value
BrowseName	CncPositionDataType

CncPositionVariableType is based on the CncPositionDataType. It offers information for unit and range additionally to the different position values of CncPositionDataType. The unit and range information is valid for all three position values. CncPositionVariableType is formally defined in Table 32.

Table 32 – CncPositionVariableType Definition

Attribute	Value
BrowseName	CncPositionVariableType
IsAbstract	False
ValueRank	-1
DataType	CncPositionDataType

References	NodeClass	BrowseName	DataType	TypeDefinition	ModellingRule
Subtype of the BaseDataVariableType

HasComponent	Variable	ActPos	Double	BaseDataVariableType	Mandatory
HasComponent	Variable	CmdPos	Double	BaseDataVariableType	Mandatory
HasProperty	Variable	0:EngineeringUnits	EUInformation	PropertyType	Mandatory
HasProperty	Variable	0:EURange	Range	PropertyType	Mandatory
HasComponent	Variable	RemDist	Double	BaseDataVariableType	Mandatory