System and method for wireless process communication over distinct networks

• US 9,084,290 B2
• Filed: 11/19/2012
• Issued: 07/14/2015
• Est. Priority Date: 06/18/2008
• Status: Active Grant

• Current Assignee: Fisher-Rosemount Systems Incorporated (Emerson Electric Company)
• Original Assignee: Fisher-Rosemount Systems Incorporated (Emerson Electric Company)
• Inventors: Enns, Frederick, Zielinski, Martin, Gutierrez, Jose
• Primary Examiner(s): Choi, Eunsook
• Application Number:
  US13/680,754
• Publication Number:
  US 20130195010A1
• Time in Patent Office: 967 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04L 12/40006 Architecture of a communication node current supply arrangements H04L12/10; intermediate storage or scheduling H04L49/90
• CPC Class Codes: H04L 2012/4026 Bus for use in automation systems
• CPC Class Codes: H04L 45/52 Multiprotocol routers
• CPC Class Codes: H04L 61/106 across networks, e.g. mapping telephone numbers to data network addresses
• CPC Class Codes: H04L 67/12 specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
• CPC Class Codes: H04L 69/08 Protocols for interworking; Protocol conversion
• CPC Class Codes: H04L 69/085 specially adapted for interworking of IP-based networks with other networks
• CPC Class Codes: H04W 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 40/00 Communication routing or communication path finding
• CPC Class Codes: H04W 88/16 Gateway arrangements
• CPC Class Codes: H04W 92/02 Inter-networking arrangements

Abstract

A dual-mode router for conveying process communication packets across a plurality of distinct wireless process communication networks is provided. The router includes wireless communication circuitry and a controller coupled to the wireless communication circuitry. The wireless communication circuitry is configured to interact with signals from each of the plurality of distinct wireless process communication networks. The controller is configured to adapt process communication packets from a first distinct wireless process communication network for transmission over a second distinct wireless process communication network. Methods for configuring the distinct wireless process communication networks and relaying process packets over the distinct wireless process communication networks are also provided.

Claims

1. A process communication system comprising:

an International Society of Automation (ISA) 100.11a wireless process communication network;

a first system manager which at least one of configures, controls and monitors the ISA 100.11a wireless process communication network;

a WirelessHART®

process communication network;

a second system manager which at least one of configures, controls and monitors the WirelessHART®

process communication network; and

wherein the first and second system managers are configured to communicate with each other to coordinate operation of the process communication system.

2. The system of claim 1, wherein the first and second system managers provide collision avoidance between the first and second distinct wireless process communication networks.

3. The system of claim 1, wherein the first and second system managers coordinate 16 bit address assignment of field devices so that addresses in the IEEE802.15.4 MAC header may be used to identify a packet on one of a plurality of distinct wireless process control networks.

4. The system of claim 1, wherein the first and second system managers coordinate the selection of a plurality of unique Personal Area Network (PAN) identifiers for each distinct wireless process control network such that the PAN identifier(s) in the IEEE802.15.4 MAC header can be used to identify the distinct wireless process control network.

5. The system of claim 1, wherein the first and second system managers coordinate graph IDs across each of the first and second distinct wireless process communication networks.

6. The system of claim 1, including:

a plurality of distinct wireless process communication networks including the ISA 100.11a wireless process communication network and the WirelessHART®

process communication network;

a plurality of devices with dual-mode router functionality;

at least one field device configured to communicate on at least one of the distinct wireless process communication networks; and

a coordinated system manager adapted to provide at least one function of configuring, controlling, and monitoring of the plurality of distinct wireless process communication networks.

7. The system of claim 6, wherein the system supports communication from the field device on a first distinct wireless process communication network communicating through a second distinct wireless process communication network to a host application of the field device'"'"'s process control system.

8. The system of claim 6, wherein the system supports communication from the field device on a first distinct wireless process communication network communicating through a second distinct wireless process communication network to a field device also on the first distinct wireless process communication network.

9. A dual-mode communication device for conveying process communication packets across a plurality of distinct wireless process communication networks comprising the ISA 100.11a wireless communication process network and the WirelessHART®

process communication network of claim 1, the device comprising;

wireless radio frequency communication circuitry configured to interact with signals from each of the plurality of distinct wireless process communication networks;

a controller coupled to the wireless radio frequency communication circuitry, the controller being configured to receive wireless process communication packets for each of the plurality of distinct wireless process communication networks.

10. The dual-mode communication device of claim 9, wherein the controller is configured to generate wireless process communication packets for each of the plurality of distinct wireless process communication networks.

11. The dual-mode communication device of claim 9, wherein the device is operably coupled to a plant network.

12. The dual-mode communication device of claim 9, wherein the device is a dual-mode access point.

13. The dual-mode communication device of claim 9, wherein the device is embodied within a wireless gateway device.

18. The system of claim 1 wherein devices on the ISA 100.11a wireless process communication network and devices communicating on the WirelessHart®

process communication network have different address ranges.

19. The system of claim 6 wherein the coordinated system manager is further adapted to provide diagnostics in accordance with the ISA 100.11a and WirelessHart®

communication standards.

14. A dual-mode router for conveying process communication packets across a plurality of distinct wireless process communication networks, the router comprising:

wireless radio frequency communication circuitry configured to interact with signals from a WirelessHART®

network and an ISA 100.11a network;

a controller coupled to the wireless radio frequency communication circuitry, the controller being configured to adapt process communication packets from the ISA 100.11a wireless process communication network for transmission over the WirelessHART®

network.

15. The dual-mode router of claim 14 wherein adapting the communication packets includes removing a WirelessHART®

packet payload from an ISA 100.11a packet and placing the WirelessHART®

packet payload in a WirelessHart®

packet.

16. The dual-mode router of claim 14 wherein adapting the communication packets includes translating ISA 100.11a header information into WirelessHart®

headers.

17. The dual-mode router of claim 14 wherein the controller is further configured to coordinate system management for ISA 100.11a network and the WirelessHart®

network.