System that provides for removal of middleware in an industrial automation environment

• US 9,537,768 B2
• Filed: 05/28/2014
• Issued: 01/03/2017
• Est. Priority Date: 09/30/2004
• Status: Active Grant

• Current Assignee: Rockwell Automation Technologies Incorporated (Allen-Bradley Co., Inc.)
• Original Assignee: Rockwell Automation Technologies Incorporated (Allen-Bradley Co., Inc.)
• Inventors: Baier, John J., Farchmin, David W., Kalan, Michael D., Marquardt, Randall A., Morse, Richard A., Briant, Stephen C., Chand, Sujeet
• Primary Examiner(s): Christensen, Scott B
• Application Number:
  US14/289,526
• Publication Number:
  US 20140280520A1
• Time in Patent Office: 951 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04L 45/745 Address table lookup; Address filtering
• CPC Class Codes: H04L 61/45 Network directories; Name-to-address mapping
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/025 for remote control or remote monitoring of applications
• CPC Class Codes: H04L 67/125 involving control of end-device applications over a network
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols

Abstract

An industrial automation environment communication system comprises a component that receives a web-based request in an industrial automation environment, wherein the web-based request includes data relating to an automation device. An encapsulating component encapsulates the web-based request, wherein the encapsulation facilitates transmitting the data to the automation device via an industrial automation network protocol.

Claims

1. A proxy device, comprising:

a processor;

a memory communicatively coupled to the processor, the memory having stored thereon executable components configured to implement the proxy device, the proxy device configured to;

maintain a directory of industrial devices residing on a control and information protocol network and configured to operate in conjunction as a server farm, wherein the proxy device acts as a client to the server farm;

associate the industrial devices with a namespace;

receive, from a requesting entity via a global area network, a message that includes a request directed to an industrial device of the industrial devices, wherein the message conforms to a web-based protocol;

perform a query of the directory based on the request;

retrieve location information from the directory in response to the query, wherein the location information specifies a location of the industrial device within an industrial system;

package the request to yield an encapsulated request containing the request, wherein the encapsulated request conforms to a control and information protocol; and

send the encapsulated request to the industrial device via the control and information network in accordance with the control and information protocol based on the location information.

2. The proxy device of claim 1, wherein the request comprises a request to at least one of read data from or write data to the industrial device.

3. The proxy device of claim 1, wherein the directory stores identification information for the industrial devices and functional information specifying data and functions respectively associated with the industrial devices.

4. The proxy device of claim 1, wherein the message conforms to one or more of eXtensible Markup Language, Simple Object Access Protocol, or HyperText Markup Language.

5. The proxy device of claim 1, wherein the directory provides a look-up service for information stored on the industrial devices.

6. The proxy device of claim 1, wherein the proxy device is further configured to monitor one or more of respective processing capacities or respective memory capacities of the industrial devices.

7. The proxy device of claim 6, wherein the proxy device is further configured to move data from one of the industrial devices to an external data storage device in response to a determination that a memory capacity of the one of the industrial devices is at or near a defined capacity.

8. The proxy device of claim 7, wherein the proxy device is further configured to retrieve time stamp information associated with the data from the one of the industrial devices, and to organize the data on the external data storage device in accordance with the time stamp information.

9. The proxy device of claim 6, wherein the proxy device is further configured to distribute processing tasks among two or more of the industrial devices based on at least one of the respective processing capacities or the respective memory capacities.

10. The proxy device of claim 1, wherein the proxy device is further configured to retrieve data and at least one associated timestamp from the industrial device in accordance with the request.

11. The proxy device of claim 1, wherein the requesting entity comprises an enterprise resource planning system.

12. A method for exchanging data with an automation device, comprising:

storing, in a proxy device comprising at least one processor, directory information relating to a set of industrial devices configured to operate in conjunction as a server farm on a control and information protocol network, wherein the proxy device acts as a client to the server farm;

providing a namespace for the set of industrial devices;

receiving, from a requesting entity via a global area network, a message comprising a request directed to an industrial device of the set of industrial devices, wherein the message conforms to a web-based protocol;

performing a query of the directory based on the request;

retrieving location information from the directory information in response to the query, wherein the location information specifies a location of the industrial device within an industrial system;

packaging the request to yield an encapsulated request that contains the request and is capable of transmission via a control and information protocol; and

sending the encapsulated request to the industrial device via the control and information protocol network based on the location information.

13. The method of claim 12, wherein the receiving the message comprises receiving the message comprising a request to at least one of read data from or write data to the industrial device.

14. The method of claim 12, wherein the storing the directory information comprises storing identification information for the set of industrial devices and functional information specifying data and functions respectively associated with the set of industrial devices.

15. The method of claim 12, further comprising providing a look-up service for data stored on the set of industrial devices based on the directory information.

16. The method of claim 12, further comprising:

monitoring, by the proxy device, at least one of respective processing capacities or respective memory capacities of the set of industrial devices; and

distributing processing tasks among two or more of the set of industrial devices based on at least one of the respective processing capacities or the respective memory capacities.

17. The method of claim 12, further comprising retrieving, by the proxy device, data and a timestamp associated with the data from the industrial device in accordance with the request.

18. The method of claim 12, wherein the receiving comprise receiving the message from an enterprise resource planning system.

19. A non-transitory computer-readable medium having stored thereon executable instructions that, in response to execution, cause a proxy device comprising at least one processor to perform operations, comprising:

maintaining a directory of industrial devices configured to operate in conjunction as a server farm on a control and information protocol network, wherein the proxy device acts as a client to the server farm;

associating the industrial devices with a namespace;

receiving, from a requesting entity via a global area network, a message that includes a request directed to an industrial device of the industrial devices, wherein the message conforms to a web-based protocol;

initiating a query of the directory based on the request;

retrieving location information from the directory in response to the query, wherein the location information specifies a location of the industrial device within an industrial system;

packaging the request to yield an encapsulated request containing the request data and conforming to a control and information protocol; and

sending the encapsulated request to the industrial device via the control and information protocol network based on the location information.

20. The non-transitory computer-readable medium of claim 19, wherein the maintaining comprises maintaining identification information for the industrial devices and functional data specifying data and functions respectively associated with the industrial devices.