Pelletizer_InterfaceType – OPC UA interfaces for plastics and rubber machinery – Extrusion

6 Pelletizer_InterfaceType

6.1 Pelletizer_InterfaceType Definition

This OPC UA ObjectType is used for the root Object representing a pelletizer as part of an extrusion line. It is based on the ExtrusionDeviceType (defined in OPC 40084-1) and formally defined in Table 1.

The instance(s) of Pelletizer_InterfaceType shall be located under the Machines Object of the Server (see OPC UA for Machinery).

NOTE: If the OPC UA server is implemented in the control of the pelletizer so only one instance of Pelletizer_InterfaceType will be created. But it is also possible that one OPC UA server is connected to several machine controls as one interface to the MES. In this case several instances of Pelletizer_InterfaceType will be created.

Figure 1 – Pelletizer_InterfaceType Overview

Table 1 – Pelletizer_InterfaceType Definition

Attribute	Value
BrowseName	Pelletizer_InterfaceType
IsAbstract	False

References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of 4:ExtrusionDeviceType (defined in OPC 40084-1)
0:HasComponent	Object	Drive		3:DriveType	M
0:HasProperty	Variable	PelletizerClosed	0:Boolean	0:PropertyType	O, RO
0:HasProperty	Variable	WaterFlowActive	0:Boolean	0:PropertyType	O, RO
0:HasComponent	Variable	CutGap	0:Double	0:AnalogUnitType	O, RO
0:HasComponent	Object	TemperatureZones		4:ExtrusionTemperatureZonesType	O
0:HasComponent	Object	PressureZones		3:MeasuringDevicesType	O
0:HasComponent	Object	KnifePackage_<Nr>		KnifePackageType	OP
0:HasComponent	Object	DiePlate_<Nr>		DiePlateType	OP

Conformance Units
OPC 40084-8 Basic

The BrowseName of the object instance shall be “Pelletizer_<Manufacturer>_<SerialNumber>”.

Example: “Pelletizer_Erema_0123456”.

6.2 DeviceClass

The DeviceClass Property in the Identification Object inside the ExtrusionDeviceType shall have the value “Pelletizer”.

6.3 Drive

This object gives information about the drive of the pelletizer. The DriveType is defined in OPC 40083.

6.4 PelletizerClosed

This Property describes the position of the pelletizer (Open/Closed).

6.5 WaterFlowActive

This Property describes the WaterFlow of the Pelletizer. This is just a Flow Switch, if the WaterFlow is active or not.

6.6 CutGap

This Property describes the distance between the rotation knife and the fixed knife.

6.7 TemperatureZones

This ObjectType is a container for the temperature zones at the corrugator.
The ExtrusionTemperatureZonesType is defined in OPC 40084-1.

6.8 PressureZones

This Object is a container for possible additional measuring devices.

6.9 KnifePackage

The KnifePackageType gives Information of the setup of the knife package. It consists of a fixed amount of knifes from a certain type.

Table 2 – KnifePackageType Definition

Attribute	Value
BrowseName	KnifePackageType
IsAbstract	False

References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of 0:BaseObjectType defined in OPC 10000-5
0:HasProperty	Variable	Name	0:LocalizedText	0:PropertyType	M, RO
0:HasProperty	Variable	Amount	0:UInt16	0:PropertyType	M, RO
0:HasProperty	Variable	ActiveTime	0:Duration	0:PropertyType	O, RO

6.9.1 Name

Name of the knife package

6.9.2 Amount

Amount of knifes in the package

6.9.3 ActiveTime

Active Time gives the time how long the knife package is active.

6.10 DiePlate

The DiePlateType gives Information of the die plate. It consists of a fixed number of holes with the same diameter in one or more rows.

Table 3 – DiePlateType Definition

Attribute	Value
BrowseName	DiePlateType
IsAbstract	False

References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of 0:BaseObjectType defined in OPC 10000-5
0:HasProperty	Variable	Name	0:LocalizedText	0:PropertyType	M, RO
0:HasProperty	Variable	ActiveTime	0:Duration	0:PropertyType	O, RO

6.10.1 Name

Name of the die plate

6.10.2 ActiveTime

Active Time gives the time how long the knife package is active.