Overview – OPC UA for Tobacco Machine Communication

8.8.1 Overview

The MaterialLoadingPointType ObjectType describes the machine module part where materials are loaded (either manually or by means of an automated system or both) and the materials being loaded, as well as the brand integrity checks required.

The MaterialLoadingPointType is formally defined in the following table.

Table 50 – MaterialLoadingPointType Definition

Attribute	Value
BrowseName	MaterialLoadingPointType
IsAbstract	False

References	Node Class	BrowseName	DataType	TypeDefinition	Other
Subtype of the TMCDeviceType i.e. inheriting the Instance Declarations of that Node.
0:HasComponent	Variable	ActualDispensingRate	0:Double	MaterialRateType	M, RO, HR
0:HasComponent	Variable	ConsumedMaterialMasterTotal	0:Double	MaterialQuantityVariableType	M, RO
0:HasComponent	Variable	ConsumedMaterialTotal	0:Double	MaterialQuantityVariableType	M, RO, HR
0:HasComponent	Variable	DispensedMaterialMasterTotal	0:Double	MaterialQuantityVariableType	M, RO
0:HasComponent	Variable	DispensedMaterialTotal	0:Double	MaterialQuantityVariableType	M, RO, HR
0:HasComponent	Variable	DispensingRateState	0:LocalizedText	0:StateVariableType	M, RO, HR
0:HasProperty	Variable	ExpectedMaterials	MaterialSublotType[]	0:PropertyType	M, RO
0:HasComponent	Variable	LoadedMaterial	MaterialSublotType[]	0:BaseDataVariableType	M, RO
0:HasProperty	Variable	MaterialPointDefinition	MaterialPointType	0:PropertyType	M, RO
0:HasProperty	Variable	MaterialIntegrityAgent	MaterialIntegrityAgentEnumeration	0:PropertyType	M, RW
0:HasProperty	Variable	MES_ID	0:String	0:PropertyType	M, RW
0:HasComponent	Variable	NominalDispensingRate	0:Double	MaterialRateType	M, RO
0:HasComponent	Variable	PresentedMaterial	MaterialSublotType	0:BaseDataVariableType	M, RW
0:HasComponent	Variable	PresentedMaterialValidationStatus	MaterialValidationStatusEnumeration	0:BaseDataVariableType	M, RO
0:HasComponent	Method	SetPresentedMaterialValidationStatus	See below.		M
0:HasProperty	Variable	AllowMixedLots	0:Boolean	0:PropertyType	M, RW
0:HasProperty	Variable	UpstreamHold	0:Boolean	0:PropertyType	M, RO
0:GeneratesEvent	ObjectType	IntegrityRejectedMaterialLogType
0:GeneratesEvent	ObjectType	LoadingPointUnloadedLogType
0:GeneratesEvent	ObjectType	MaterialConsumedLogType
0:GeneratesEvent	ObjectType	MaterialDispensedLogType
0:GeneratesEvent	ObjectType	MaterialUnloadingRequiredLogType
0:GeneratesEvent	ObjectType	NewPresentedMaterialLogType

Conformance Units
TMC Core Production

BrowseName	Description
ActualDispensingRate	The actual rate at which the input material is being dispensed.
ConsumedMaterialMasterTotal	The total quantity of material that entered the machine loading point. This total is never reset.
ConsumedMaterialTotal	The total quantity of material that entered the machine loading point. When the material is loaded, it may be immediately dispensed or may be stored and dispensed when required according to the machine logic. When the material is immediately dispensed, the consumed material quantity equals the dispensed material quantity (DispensedMaterialTotal). The quantity is reset by the successful execution of the ResetMachineTotals method, only.
DispensedMaterialMasterTotal	The total quantity of material dispensed at the machine after loading at the loading point. This total is never reset.
DispensedMaterialTotal	The total quantity of material dispensed at the machine after loading at the loading point. The quantity is reset by the successful execution of the ResetMachineTotals method, only.
DispensingRateState	The DispensingRateState provides information about the state of the dispensing rate justifying why the ActualDispensingRate is different from the NominalDispensingRate. At a minimum the list of states below shall be provided: Id=0, Speed is at Nominal value Id=1, Speed Changed by Operator Id=2, Speed Followed from Downstream Internal Id=3, Speed Reduced due to low input material Id=4, Speed Reduced due to internal high input material level Id=5, Speed Reduced due to Filling Mode Id=6, Speed Reduced due to internal procedure (e.g. calibration) Id=7, Speed Reduced due to input material change (e.g. foil splicing, inner frame bobbin change, etc.) Id=8, Speed Changed by Remote Host When the actual rate is not measured, Id=0 Speed is at Nominal value will be returned. The speed set by an external host, if any, is used as the NominalDispensingRate. Null speed is a speed reduction. The list may be extended for specific states not already covered in the list above.
ExpectedMaterials	The array of sublots of the material that are expected at the machine loading point for the current production. ExpectedMaterials is a set of MaterialListItems such that the UserMachineName in LoadingPoint matches the LoadingPointID of the MaterialListItem.
LoadedMaterial	An array of the sublots that entered the machine loading point. When a sublot is unloaded, it is also removed from the array. The sublot in the first position is the sublot from which the machine module is currently dispensing the material. The quantity of the sublot in the first position is decreased by an amount equal to the dispensing.
MaterialPointDefinition	The Property MaterialPointDefinition contains the identification of the material point and the material that is processed.
MaterialIntegrityAgent	MaterialIntegrityAgent defines how material validation is performed. The scenarios taken into consideration are defined by the MaterialIntegrityEnumeration: None: the material validation is not requested. In this case the underlying system sets MaterialValidationResult to None. External: an external system performs the material validation. The external system validates the PresentedMaterial and invokes the SetValidationResult method to transfer the validation results to the machine. Local: the underlying system performs the material validation on the PresentedMaterial and sets the result in MaterialValidationResult. When an unsupported value is written to the variable, the underlying system will overwrite it with a supported one.
MES_ID	Unique identifier for the material point in an external system, e.g. MES.
NominalDispensingRate	The nominal rate at which the input material is dispensed when the machine runs at design speed.
PresentedMaterial	The material presented to the material loading point, but not yet loaded. When the material is loaded, the underlying system resets the PresentedMaterial and the MaterialValidationStatus to Failed. When an upstream machine is connected, the material output from the upstream machine is the presented material. Read/Write to allow for external systems to request the validation of a material. When the PresentedMaterial changes, the validation system performs validation.
PresentedMaterialValidationStatus	The status of the validation of the presented material. When Passed, the presented material is loaded by the machine module; when Failed, the presented material will be removed from the loading point, either automatically or manually. When InProgress, the validation is in progress. When MaterialIntegrityAgent is None and MaterialPresented is empty, then the value is None.
AllowMixedLots	When AllowMixedLots is False and BatchManaged in the material definition of the ExpectedMaterials is True, then one material lot will be processed i.e. the first material lot received.
UpstreamHold	UpstreamHold is true when the loading point cannot receive more product and the upstream machine is required to stop loading, False when the loading point can receive product.