Rolls and Gaps – OPC UA interfaces for plastics and rubber machinery – Extrusion

9 Rolls and Gaps

Several machines in an extrusion lines (e.g. calenders) contain rolls and gaps between rolls.

9.1 RollsType

The RollsType defines a container for several rolls inside of a component of an extrusion line. It is formally defined in Table 12.

Table 12 – RollsType Definiton

Attribute	Value
BrowseName	RollsType
IsAbstract	False

References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of the 0:BaseObjectType defined in OPC 10000-5
0:HasProperty	Variable	0:NodeVersion	0:String	0:PropertyType	M, RO
0:HasComponent	Object	Roll_<Nr>		RollType	OP
0:GeneratesEvent	ObjectType	0:GeneralModelChangeEventType

9.2 RollType

The RollType described a single roll. It is formally defined in Table 13.

Table 13 – RollType Definiton

Attribute	Value
BrowseName	RollType
IsAbstract	False

References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of the 0:BaseObjectType defined in OPC 10000-5
0:HasProperty	Variable	Id	0:String	0:PropertyType	M, RO
0:HasProperty	Variable	Name	0:LocalizedText	0:PropertyType	O, RO
0:HasProperty	Variable	MasterRollId	0:String	0:PropertyType	O, RO
0:HasComponent	Object	Drive		3:DriveType	M
0:HasComponent	Object	Temperature		ExtrusionTemperatureZoneType	O
0:HasComponent	Object	CrossAxisLeft		3:MonitoredParameterType	O
0:HasComponent	Object	CrossAxisRight		3:MonitoredParameterType	O
0:HasComponent	Object	PeripheralDevices		RollPeripheralDevicesType	O
0:HasComponent	Object	RollBending		RollBendingType	O

9.2.1 Id

Id of the roll

9.2.2 Name

(Human readable) name of the roll

9.2.3 MasterRollId

Id of the master roll. If a roll is the master roll then MasterRollId = Id.

9.2.4 Drive

Information about the drive of the roll. The DriveType is defined in OPC 40083.

9.2.5 Temperature

Temperature of the roll.

9.2.6 CrossAxisLeft, CrossAxisRight

Axis crossing of the roll on both sides (in the direction of the material flow). The MonitoredParameterType is defined in OPC 40083.

Unit: mm or inch

9.2.7 RollPeripheralDevices

A roll can be equipped with infrared heating systems and/or cleaning systems. Their representations are put into the container RollPeripheralDevices. The RollPeripheralDevicesType is formally defined in Table 14.

Table 14 – RollPeripheralDevicesType Definiton

Attribute	Value
BrowseName	RollPeripheralDevicesType
IsAbstract	False

References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of the 0:BaseObjectType defined in OPC 10000-5
0:HasProperty	Variable	0:NodeVersion	0:String	0:PropertyType	M, RO
0:HasComponent	Object	InfraredHeatingSystem_<Nr>		3:StartDeviceType	OP
0:HasComponent	Object	CleaningSystem_<Nr>		3:StartDeviceType	OP
0:GeneratesEvent	ObjectType	0:GeneralModelChangeEventType

The StartDeviceType usesd for the infrared heating systems and cleaning systems is defined in OPC 40083.

9.2.8 RollBending

If roll bending is used, the monitoring of the positions of the reference points are described with the RollBendingType. It is formally defined in Table 15.

Table 15 – RollBendingType Definiton

Attribute	Value
BrowseName	RollBendingType
IsAbstract	False

References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of the 0:BaseObjectType defined in OPC 10000-5
0:HasProperty	Variable	0:NodeVersion	0:String	0:PropertyType	M, RO
0:HasComponent	Object	ReferencePoint_<Nr>		3:MeasuringDeviceType	OP
0:GeneratesEvent	ObjectType	0:GeneralModelChangeEventType

9.3 GapsType

The GapsType defines a container for several gaps between two rolls (e.g. of a calender). It is formally defined in Table 16.

Table 16 – GapsType Definiton

Attribute	Value
BrowseName	GapsType
IsAbstract	False

References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of the 0:BaseObjectType defined in OPC 10000-5
0:HasProperty	Variable	0:NodeVersion	0:String	0:PropertyType	M, RO
0:HasComponent	Object	Gap_<Nr>		GapType	OP
0:GeneratesEvent	ObjectType	0:GeneralModelChangeEventType

9.4 GapType

The GapType described a gap between two rolls. It is formally defined in Table 17.

Table 17 – GapType Definiton

Attribute	Value
BrowseName	GapType
IsAbstract	False

References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of the 0:BaseObjectType defined in OPC 10000-5
0:HasProperty	Variable	Id	0:String	0:PropertyType	M, RO
0:HasProperty	Variable	RollId1	0:String	0:PropertyType	M, RO
0:HasProperty	Variable	RollId2	0:String	0:PropertyType	M, RO
0:HasComponent	Object	DistanceLeft		3:MonitoredParameterType	O
0:HasComponent	Object	DistanceRight		3:MonitoredParameterType	O
0:HasComponent	Variable	IsClosed	0:Boolean	0:BaseDataVariableType	O, RO
0:HasComponent	Object	ContactForce	0:Double	3:MonitoredParameterType	O, RO
0:HasProperty	Variable	StockingGuideIsPresent	0:Boolean	0:PropertyType	O, RO

9.4.1 Id

Id of the gap.

9.4.2 RollId1, RollId2

Ids of the rolls which create the gap.

9.4.3 DistanceLeft, DistanceRight

Distances between the rolls on both sides (in the direction of the material flow). The MonitoredParameterType is defined in OPC 40083.

Unit: mm or inch

9.4.4 IsClosed

True, when the rolls forming the gaps are in working position.

9.4.5 ContactForce

Contact force between the rolls (mainly measured indirectly via the fluid pressure). The MonitoredParameterType is defined in OPC 40083.

Unit: N or lfb

9.4.6 StockingGuideIsPresent

Information if a stocking guide is present.