The InjectionUnitCycleParametersTyperepresents information on the production cycle related to an injection unit. This type is used to extend the CycleParametersEventTypedefined in OPC 40083.

The BrowseNamesof the additional objects shall be “InjectionUnitCycleParameters_<Nr>” (starting with 1)

Table 6– Example of an event type derived from CycleParametersEventTypewith two moulds and two injection units

Attribute

Value

BrowseName

ExampleCycleParametersEventType

IsAbstract

false

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of 3:CycleParametersEventType defined in OPC 40083

0:HasComponent

Object

MouldCycleParameters_1

Example1MouldCycleParametersType

M

0:HasComponent

Object

MouldCycleParameters_2

Example2MouldCycleParametersType

M

0:HasComponent

Object

InjectionUnitCycleParameters_1

Example1InjectionUnitCycleParametersType

M

0:HasComponent

Object

InjectionUnitCycleParameters_2

Example2InjectionUnitCycleParametersType

M

The Types Example1MouldCycleParametersTypeand Example2MouldCycleParametersTypeused in the example are subtypes of the MouldCycleParametersTypedefined in OPC 40083. The Types Example1InjectionUnitCycleParametersTypeand Example2InjectionUnitCycleParametersTypeare subtypes of the InjectionUnitCycleParametersTypewhich is formally defined Table 7.

Table 7– InjectionUnitCycleParametersType Definition

Attribute

Value

BrowseName

InjectionUnitCycleParametersType

IsAbstract

True

References

Node Class

BrowseName

DataType

TypeDefinition

Other

Subtype of 0:BaseObjectTypedefined in OPC UA Part 5

0:HasProperty

Variable

Index

0:UInt32

0:PropertyType

M

0:HasComponent

Variable

CushionVolume

0:Double

0:AnalogItemType

M

0:HasComponent

Variable

CushionStroke

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

PlastificationVolume

0:Double

0:AnalogItemType

M

0:HasComponent

Variable

DecompressionVolumeBeforePlastification

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

DecompressionVolumeAfterPlastification

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

HydraulicPressureMaximum

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

SpecificPressureMaximum

0:Double

0:AnalogItemType

M

0:HasComponent

Variable

PlastificationRotationalSpeedMaximum

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

PlastificationRotationalSpeedAverage

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

PlastificationCircumferentialSpeedMaximum

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

PlastificationCircumferentialSpeedAverage

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

InjectionSpeedMaximum

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

InjectionSpeedAverage

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

TransferVolume

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

TransferStroke

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

HoldHydraulicPressureMaximum

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

HoldHydraulicPressureAverage

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

HoldSpecificPressureMaximum

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

HoldSpecificPressureAverage

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

CavityPressureMaximum

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

PlastificationHydraulicPressureMaximum

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

PlastificationHydraulicPressureAverage

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

PlastificationSpecificPressureMaximum

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

PlastificationSpecificPressureAverage

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

TransferHydraulicPressure

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

TransferSpecificPressure

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

TransferCavityPressure

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

BackPressure

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

InjectionTime

0:Duration

0:BaseDataVariableType

M

0:HasComponent

Variable

DosingTime

0:Duration

0:BaseDataVariableType

M

0:HasComponent

Variable

FlowIndex

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

InjectionStartPosition

0:Double

0:AnalogItemType

O

0:HasComponent

Variable

VPChangeOverPosition

0:Double

0:AnalogItemType

O

Table 8contains a description of the parameters listed in Table 7.

Table 8– Description of cycle parameters

Parameter

Description

Index

Index of the InjectionUnit (see 16.2)

CushionVolume

Material volume remained in front of the screw after injection and holding pressure

CushionStroke

Stroke position at cushion

PlastificationVolume

Volume dosed by the machine for the next injection shot

DecompressionVolumeBeforePlastification

Decompression before plastification is the movement of the screw in the opposite direction to injection

DecompressionVolumeAfterPlastification

Decompression after plastification is the movement of the screw in the opposite direction to injection

HydraulicPressureMaximum

Maximum pressure in the hydraulic cylinder

SpecificPressureMaximum

Pressure in front of the screw tip

PlastificationRotationalSpeedMaximum

Maximum plastification speed of the injection unit (RPM)

PlastificationRotationalSpeedAverage

Average plastification speed of the injection unit (RPM)

PlastificationCircumferentialSpeedMaximum

Maximum screw circumferential speed for plastification (e.g. mm/s)

PlastificationCircumferentialSpeedAverage

Average screw circumferential speed for plastification (e.g. mm/s)

InjectionSpeedMaximum

Maximum injection speed (e.g. mm/s)

InjectionSpeedAverage

Average injection speed (e.g. mm/s)

TransferVolume

Switch-over point to the holding pressure via volume

TransferStroke

Switch-over point to the holding pressure via stroke

HoldHydraulicPressureMaximum

Maximum holding pressure in the hydraulic cylinder

HoldHydraulicPressureAverage

Average holding pressure in the hydraulic cylinder

HoldSpecificPressureMaximum

Maximum holding pressure in front of the screw

HoldSpecificPressureAverage

Average holding pressure in front of the screw

CavityPressureMaximum

Maximum pressure during the injection process in the cavity or mould

PlastificationHydraulicPressureMaximum

Maximum plastification pressure in cylinder

PlastificationHydraulicPressureAverage

Average plastification pressure in cylinder

PlastificationSpecificPressureMaximum

Maximum plastification pressure in front of the screw tip

PlastificationSpecificPressureAverage

Average plastification pressure in front of the screw tip

TransferHydraulicPressure

Hydraulic pressure in the cylinder during switch-over to the holding pressure

TransferSpecificPressure

Pressure in front of the screw tip during switch-over to the holding pressure

TransferCavityPressure

Cavity pressure in the mould during switch-over to the holding pressure

BackPressure

Back pressure is the melt-pressure against the screw movement during dosage

InjectionTime

Time required to fill the cavity or mould

DosingTime

Time to melt-up the plastic granulates and feed the melt for the next injection shot to the front of the screw

FlowIndex

Integral of the injection pressure over the injection time as measure for the injection work

InjectionStartPosition

Start position of the injection

VPChangeOverPosition

Screw position at switching between injection (V) and holding pressure (P)

The InjectionUnitCycleParametersTypeis abstract and the OPC server of the machine shall create a derived type with the additional objects of TemperatureZoneCycleParametersType (defined in OPC 40083) for the temperature zones of the barrel. The BrowseNamesof the objects shall be “BarrelTemperatureZoneCycleParameters _<Nr>” (starting with 1 for each injection unit).