System for configuring a process control environment

• US 8,185,871 B2
• Filed: 10/05/2004
• Issued: 05/22/2012
• Est. Priority Date: 04/12/1996
• Status: Expired due to Fees

• Current Assignee: Fisher-Rosemount Systems Incorporated (Emerson Electric Company)
• Original Assignee: Fisher-Rosemount Systems Incorporated (Emerson Electric Company)
• Inventors: Nixon, Mark J., Ott, Michael G., Jundt, Larry O., Lucas, John Michael, Stevenson, Dennis L.
• Primary Examiner(s): WANG, RONGFA PHILIP
• Application Number:
  US10/958,720
• Publication Number:
  US 20050172258A1
• Time in Patent Office: 2,786 Days
• Field of Search: None
• US Class Current: 717/121
• CPC Class Codes: G05B 2219/31336 Store machines performance; use it to control future machining
• CPC Class Codes: G05B 2219/31472 Graphical display of process
• CPC Class Codes: G05B 23/0216 Human interface functionality, e.g. monitoring system providing help to the user in the selection of tests or in its configuration
• CPC Class Codes: G06F 8/34 Graphical or visual programming

Abstract

An apparatus having a programmable processor and a memory for performing a plurality of user-selectable control functions includes a database for storing a plurality of items associated with each of the control functions. The items include, for each function, at least one procedure for performing an action associated with the control function and a specification of at least one state associated with the control function. The apparatus further includes software routines stored on the memory and adapted to be executed by the processor that facilitate selection of a procedure in the database, that access the database and cause performance of the selected procedure to achieve the state specified therein, and that monitor at least one resource associated with the action of the procedure and, based thereon, determine whether the specified state has been achieved.

Claims

1. A process control system, comprising:

a plurality of separate control devices to be used in a process plant, including;

a field device that performs a physical step in a field and includes a processing unit to implement a specific portion of a control strategy, wherein the control strategy is associated with controlling a process variable; and

a controller communicatively coupled to the field device; and

wherein the process control system further comprises a software system that causes data corresponding to a plurality of interconnected objects defining the control strategy to be distributed among the plurality of separate control devices to configure the plurality of separate control devices to implement the control strategy so that a first one of the plurality of interconnected objects is implemented by the field device wherein the processing unit of the field device executes computer instructions of the first one of the plurality of interconnected objects, and a second one of the plurality of interconnected objects is implemented by the controller;

wherein the first object implemented by the field device and the second object implemented by the controller communicate with each other in accordance with the control strategy to control the process variable.

2. A process control system according to claim 1, wherein the plurality of separate control devices includes a plurality of controllers.

3. A process control system according to claim 1, wherein the plurality of separate control devices includes a workstation.

4. A process control system according to claim 1, wherein the plurality of separate control devices includes a plurality of field devices each performing a respective physical step in the field and each including a respective processing unit to implement a respective specific portion of the control strategy.

5. A process control system according to claim 1, wherein the plurality of interconnected objects comprises a plurality of control strategy modules.

6. A process control system according to claim 1, wherein the plurality of interconnected objects comprises a plurality of function blocks.

7. A process control system according to claim 1, further comprising a configuration routine to permit a user to define the control strategy via a graphical user interface.

8. A process control system according to claim 7, wherein the plurality of interconnected objects comprises a plurality of control strategy modules;

wherein the configuration routine permits the user to modify instances of existing control strategy modules; and

wherein the configuration routine permits the user to create new types of control strategy module.

9. A method of configuring control devices in a process plant, the method comprising:

defining a control strategy associated with a process plant using a graphical user interface, the control strategy for maintaining a process variable at a desired level;

storing the defined control strategy in a database as a plurality of interconnected objects; and

causing data corresponding to the plurality of interconnected objects to be distributed among a plurality of separate control devices in a process plant to configure the plurality of separate control devices to implement the control strategy, wherein one of the plurality of separate control devices is a field device that performs a physical step in a field and includes a processing unit to implement a specific portion of a control strategy and a second one of the plurality of separate control devices is a controller, wherein a first object implemented by the field device and a second object implemented by the controller communicate with one another to implement the control strategy to maintain the process variable at the desired level.

10. A method according to claim 9, wherein the plurality of separate control devices includes a plurality of controllers.

11. A method according to claim 9, wherein the plurality of separate control devices includes a workstation and a controller.

12. A method according to claim 9, wherein the plurality of separate control devices includes a controller and a plurality of smart field devices.

13. A method according to claim 9, wherein the plurality of interconnected objects comprises a plurality of control strategy modules.

14. A method according to claim 13, wherein defining the control strategy comprises configuring existing control strategy modules.

15. A method according to claim 14, wherein defining the control strategy comprises creating new types of control strategy modules.

16. A method according to claim 15, wherein the plurality of interconnected objects comprises a plurality of function blocks.

17. A computer readable medium having stored thereon machine executable instructions, the machine executable instructions capable of causing the machine to:

permit a user to define a control strategy associated with a process plant, the control strategy for maintaining a process variable at a desired level;

store the defined control strategy in a database as a plurality of interrelated objects; and

cause data corresponding to the plurality of interrelated objects to be distributed among a plurality of separate control devices in a process plant to configure the plurality of separate control devices to implement the control strategy, wherein one of the plurality of separate control devices is a field device that performs a physical step in a field and includes a processing unit to implement a specific portion of a control strategy and a second one of the plurality of separate control devices is a controller, wherein a first object implemented by the field device and a second object implemented by the controller communicate with each other to implement the control strategy to maintain the process variable at the desired level.