Extensible device object model
Systems and/or methods are provided relating to an extensible framework. The extensible framework provides constructs with which device developers can model devices within the framework to enable a host application utilizing the framework to interact with the devices. New devices can be supported by the framework without disrupting existing devices or the host application.
1. An apparatus comprising:
a processor;
a non-transitory memory, communicatively coupled to the processor, the non-transitory memory storing executable instructions executed by the processor to perform:
obtaining device specific information for a device in an industrial automation environment including information about a sub-component of the device;
generating, based on the device specific information, a data object associated with the sub-component of the device;
generating, based on the device specific information, a translator that converts raw data from the sub-component into a format of the data object in a downstream direction and formats data from the data object into a form recognizable to the sub-component in an upstream direction;
generating a connection that provides communication between the sub-component and the translator;
identifying, based on the device specific information, a mapping description, wherein the mapping description comprises information identifying the data object and the associated sub-component, the translator, and the connection;
instantiating, based on the mapping description, a first node in an extensible framework, wherein the extensible framework comprises a plurality of nodes, the first node does not disrupt existing nodes of the extensible framework, and the first node comprises the translator and the connection; and
instantiating a module in the first node, wherein the module is based on the mapping description, the module comprises the data object, and the data object is coupled to the sub-component via the translator and the connection;
wherein the instantiated node of the framework controls operation of the device and sub-component.
2. The apparatus of claim 1 , wherein the device specific information further comprises node type information that specifies a node type for the first node.
3. The apparatus of claim 1 , wherein the device specific information further comprises device class information, device type information, and device revision information.
4. The apparatus of claim 1 , wherein the module comprises one or more data objects in a data object container.
5. The apparatus of claim 4 , wherein the device is a composite device.
6. The apparatus of claim 1 , wherein the device includes at least one of a controller, a field device, a sensor, a drive, or an I/O module.
7. The apparatus of claim 1 , wherein the connection enables communication from the sub-component over a network connection comprising one or more of a physical wire, an Ethernet medium, a fiber optic medium, or a wireless communications channel.
8. A method comprising:
obtaining, by use of a processor, device specific information for a device in an industrial automation environment including information about a sub-component of the device;
generating, based on the device specific information, a data object associated with the sub-component of the device;
generating, based on the device specific information, a translator that converts raw data from the sub-component into a format of the data object in a downstream direction and formats data from the data object into a form recognizable to the sub-component in an upstream direction;
generating a connection that provides communication between the sub-component and the translator;
identifying, based on the device specific information, a mapping description, wherein the mapping description comprises information identifying the data object and the associated sub-component, the translator, and the connection;
instantiating, based on the mapping description, a first node in an extensible framework, wherein the extensible framework comprises a plurality of nodes, the first node does not disrupt existing nodes of the extensible framework, and the first node comprises the translator; and the connection; and
instantiating a module in the first node, wherein the module is based on the mapping description, the module comprises the data object, and the data object is coupled to the sub-component via the translator and the connection;
wherein the instantiated node of the framework controls operation of the device and the sub-component.
9. The method of claim 8 , wherein the device specific information further comprises node type information that specifies a node type for the first node.
10. The method of claim 8 , wherein the device specific information further comprises device class information, device type information, and device revision information.
11. The method of claim 8 , wherein the module comprises one or more data objects in a data object container.
12. The method of claim 11 , wherein the device is a composite device.
13. The method of claim 8 , wherein the device includes at least one of a controller, a field device, a sensor, a drive, or an I/O module.
14. The method of claim 8 , wherein the connection enables communication from the sub-component over a network connection comprising one or more of a physical wire, an Ethernet medium, a fiber optic medium, or a wireless communications channel.
15. A non-transitory computer-readable storage medium having instructions stored thereon that, in response to execution, cause a system comprising a processor to perform operations comprising:
obtaining device specific information for a device in an industrial automation environment including information about a sub-component of the device;
generating, based on the device specific information, a data object associated with the sub-component of the device;
generating, based on the device specific information, a translator that converts raw data from the sub-component into a format of the data object in a downstream direction and formats data from the data object into a form recognizable to the sub-component in an upstream direction;
generating a connection that provides communication between the sub-component and the translator;
identifying, based on the device specific information, a mapping description, wherein the mapping description comprises information identifying the data object and the associated sub-component, the translator, and the connection;
instantiating, based on the mapping description, a first node in an extensible framework, wherein the extensible framework comprises a plurality of nodes, the first node does not disrupt existing nodes of the extensible framework, and the first node comprises the translator and the connection; and
instantiating a module in the first node, wherein the module is based on the mapping description, the module comprises the data object, and the data object is coupled to the sub-component via the translator and the connection;
wherein the instantiated node of the framework controls operation of the device and the sub-component.
16. The non-transitory computer-readable storage medium of claim 15 , wherein the device specific information further comprises node type information that specifies a node type for the first node.
17. The non-transitory computer-readable storage medium of claim 15 , wherein the device specific information further comprises device class information, device type information, and device revision information.
18. The non-transitory computer-readable storage medium of claim 15 , wherein the module comprises one or more data objects in a data object container.
19. The non-transitory computer-readable storage medium of claim 18 , wherein the device is a composite device.
20. The non-transitory computer-readable storage medium of claim 15 , wherein the device includes at least one of a controller, a field device, a sensor, a drive, or an I/O module.