The following Objects are defined to extend the DeviceType.

The Property LoadingPointcontains the identification of the loading point and the material that will be loaded. The Variable LoadingPoint has type LoadUnloadPointType.

Type LoadUnloadPointTypeis defined in Table 21.

The Property MaterialIntegrityAgentidentifies which system is responsible for checking the integrity of the brand by controlling the loaded material. The Enumeration MaterialIntegrityAgentEnumerationis defined in Table 33.

Table 33MaterialIntegrityAgentEnumerationDefinition

Enumstring

Value

Description

Other

0

None of the below.

MES

1

The MES system is in charge of material integrity checks.

Local

2

The local underlying system is in charge

None

3

The material integrity checks are performed visually by operators.

The Property ExpectedMaterialcontains the description of the material that is expected. It is duty of the underlying system to fill in the Property ExpectedMaterial from the production parameters.

The Property ExpectedMaterial has type MaterialType which is defined in Table 22.

The Variable TotalLoadedLot indicates the complete lot of material loaded into the machine since the last reset.

The Variable TotalLoadedLothas type MaterialLotTypewhich is defined in section 8.3.

The Value of the Variable TotalLoadedLotshall be persisted both in the OPC UA Server and in the underlying system so that, if one fails and/or is replaced, the other will allow restoring the Value when the OPC UA Server and underlying system are on separate hardware infrastructure.

The Variable ActualConsumptionRate is the actual rate at which the material is consumed. The Variable ActualConsumptionRate has type MaterialRateType which is defined in section 8.4.

The Variable NominalConsumptionRateis the nominal rate at which the material is consumed. The Variable NominalConsumptionRate has type MaterialRateType which is defined in section 8.4.

When the LoadingPoint cannot receive the product flow, the upstream machine is required to hold the transfer of product to the LoadingPoint.

The Variable UpstreamHoldis intended to be used with OPC UA Time Sensitive Networks.

The Object UIInfo contains information about the User Interface (UI) of the loading point.When an Object does not have own UIInfo, then the Object does not require visualisation.

The Method MaterialIntegrityCheckvalidates a presented, e.g. via bar code scanning, material against the material that is accepted at the loading point. The result of the validation of the material and its quantity is returned. When the result of the validation is positive, then the quantity is added to the material totals.

Signature

MaterialIntegrityCheck(

[in] MaterialType Material

[in] Double MaterialQuantity

[out] MethodExecutionFeedbackTypeExecutionFeedback

);

Argument

Description

Material

The material presented to the loading point.

MaterialQuantity

The quantity of the material presented to the loading point.

ExecutionFeedback

The extended feedback returning a detailed message in case of execution failure.

Method Result Codes

The Method UnloadMaterialsrequires the materials loaded at the loading point to be unloaded. In some implementations the unloading is automated, in other the unloading is performed by the user. The Method UnloadMaterials may be triggered by an MES client to request a material subject to brand change to be unloaded.

Signature

UnloadMaterials(

[out] MethodExecutionFeedbackTypeExecutionFeedback

);

ResultCode

Description

BadNodeIdUnknown

See table 173 in OPC 10000-4 for the description of these result codes.

BadTypeMismatch

BadOutOfRange

BadNotWritable

BadNotFound

Argument

Description

ExecutionFeedback

The extended feedback returning a detailed message in case of execution failure.

When an UnloadMaterialsMethod is executed by the underlying system, the Messagein MethodExecutionFeedbackis suitably displayed on the machine HMI to inform the machine user and provide useful instructions, e.g. “A remote materials unloading is requested by […]”, […] contains the client name.

Method Result Codes

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ResultCode

Description

BadNodeIdUnknown

See table 173 in OPC 10000-4 for the description of these result codes.

BadTypeMismatch

BadOutOfRange

BadNotWritable

BadNotFound