This OPC UA ObjectType is used for the root Object representing a melt pump 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 MeltPump_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 melt pump so only one instance of MeltPump_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 MeltPump_InterfaceType will be created.
Figure 1 – MeltPump_InterfaceType Overview
Table 1 – MeltPump_InterfaceType Definition
|
Attribute |
Value |
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|
BrowseName |
MeltPump_InterfaceType |
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IsAbstract |
False |
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References |
Node Class |
BrowseName |
DataType |
TypeDefinition |
Other |
|
Subtype of 4:ExtrusionDeviceType (defined in OPC 40084-1) |
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|
0:HasComponent |
Object |
MeltPressures |
|
3:MeasuringDevicesType |
M |
|
0:HasComponent |
Object |
Drive |
|
3:DriveType |
M |
|
0:HasComponent |
Variable |
FeedRate |
0:Double |
0:AnalogUnitType |
O, RO |
|
0:HasComponent |
Object |
TemperatureZones |
|
4:ExtrusionTemperatureZonesType |
O |
|
Conformance Units |
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|
OPC 40084-5 Basic |
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The BrowseName of the object instance shall be “MeltPump_<Manufacturer>_<SerialNumber>”.
Example: “MeltPump_Weber_0123456”.
The DeviceClass Property in the Identification Object inside the ExtrusionDeviceType shall have the value “Melt pump”.
This Object represents the pressures in the melt. The MeasuringDevicesType is defined in OPC 40083.
When instances for melt pressures are created, the BrowseNames shall be “MeltPressure_<Nr>” where <Nr> is a three-digit number with leading zeros, starting with “001”.
The pressure of the melt shall be delivered in bar or lbf/in² (=psi).
This object gives information about the drive of the melt pump. The DriveType is defined in OPC 40083.
This Variable represents the volume of the fed material per revolution (e.g. in cm³).
This Object is a container for the temperature zones of the melt pump. The ExtrusionTemperatureZonesType is defined in OPC 40084-1.
This Object is used to switching the melt pump on and off via the interface. The SwitchDeviceType is defined in OPC 40083.