6 Cutter_InterfaceType

6.1 Cutter_InterfaceType Definition

This OPC UA ObjectType is used for the root Object representing a haul-off as part of an extrusion line. It is based on the ExtrusionDeviceType (defined in OPC 80084-1) and formally defined in Table 1.

The instance(s) of Cutter_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 cutter so only one instance of Cutter_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 Cutter_InterfaceType will be created.

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

Example: “Cutter_Weber_0123456”.

6.2 DeviceClass

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

6.3 Distances

The distances (length) for the cutting shall be put into the Object AdditionalMeasuringDevices which is part of the ExtrusionDeviceType.

6.4 ProductSpeed

This Object is used for monitoring the speed of the product which shall be cut. The MonitoredParameterType is defined in OPC 40083.

6.5 CuttingProductsType

This Object is a container for the description of the products to be cut.

The number of instances of CuttingProductType is fixed by cutter (default 5)

If the current production does not use all provided instances, the SetOutput is set to 0.

The systematic of describing the products to be cut is similar to jobs described in OPC 40084-2. One CuttingProduct is produced (SetOutput) then the next. After the last CuttingProduct, the first one is active again.

ActualCuttingProductId: Id of the product which is currently produced.

6.6 CuttingProductType

Description of the product to be cut with Id, length, length correction wall thickening and amount of output.

The ActualOutput is related to the output during producing one product type and automatically reset when the CuttingProduct is newly started

TotalOutput: Total sum of output

For the wall thickening the length and the position needs to be defined.

6.7 SideClampClosed

Information if the side clamp of the cutter is closed.

6.8 CuttingProgram

With this object the client is informed, if the cutting program is running. The client can also request the starting and stopping of the cutting program. The StartDeviceType is defined in OPC 40083.

6.9 ManualCut

With this Method (without arguments), the client can request an immediate cutting.

NOTE: This is usually destroying the current product.

Signature

	ManualCut ();

6.10 SampleCut, SampleCutLength

With this Method (without arguments), the client can request to have a sample cut after the next regular cutting. The length of the cut is pre-defined by writing in the Variable SampleCutLength.

Signature

	SampleCut ();

6.11 WasteIndicator, WasteCuttingLength, TotalWasteLength

Written from the client (e.g. extruder) to tell the cutter, that currently waste is produced. If true, the product is cut into pieces with the length set in WasteCuttingLength. TotalWasteLength gives the toal length of the waste.

6.12 CutEventType

This event is fired after each cut.