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Automatic configuration of synchronous block execution for control modules in fieldbus networks

A control module, automatic technology, applied in the direction of program control, comprehensive factory control, electrical program control, etc., can solve the problem of separation block delay, etc., to achieve the effect of optimal use

Inactive Publication Date: 2009-07-08
FISHER-ROSEMOUNT SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Separating blocks in this way introduces a significant delay in the control loop since the blocks executing in the controller are not synchronized with the blocks executing on the fieldbus segment

Method used

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  • Automatic configuration of synchronous block execution for control modules in fieldbus networks
  • Automatic configuration of synchronous block execution for control modules in fieldbus networks
  • Automatic configuration of synchronous block execution for control modules in fieldbus networks

Examples

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Embodiment Construction

[0048] see now figure 1 , a process control system 10 comprising a process control system communicatively connected to a data historian 12 and to one or more host workstations or computers 13 (which may be any type of personal computer, workstation, etc.) each having a display screen 14 Device 11. Controller 11 is also connected to field devices 15 - 22 through input / output (I / O) devices or cards 26 and 28 . The historian 12 may be any desired type of data acquisition unit having any desired type of memory for storing data and any desired or known software, hardware or firmware, and may be separate from the workstation 13 (e.g. figure 1 shown), may also be part of one of the workstations 13. Controller 11 may be, for example, the DeltaV® sold by Emerson Process Management (Emerson Process Management) TM Controller, controller 11 may be communicatively connected to host computer 13 and historian 12 via, for example, an Ethernet communication link or any other desired communi...

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Abstract

The present invention relates to automatic configuration of synchronous block execution for control modules in a fieldbus network. A method or an apparatus automatically configures a control module for synchronous execution on a Fieldbus segment of a process control network by determining if all of the critical function blocks of a particular control module can be assigned to FOUNDATION(R) Fieldbus field devices or to the I / O device associated with a particular Fieldbus segment. If so, the method or apparatus automatically assigns the function blocks of the control module, which would otherwise be scheduled to execute in a controller, to the I / O device for the Fieldbus segment. This technique enables all of the critical or necessary function blocks within the control module to execute in one macrocycle of the Fieldbus segment, thereby executing synchronously on a Fieldbus segment. This operation increases the overall execution rate of the control module with respect to control modules that have function blocks split between a controller and field devices on the Fieldbus segment, which has been the traditional manner of configuring control modules implemented using devices on the Fieldbus segment.

Description

[0001] related application [0002] This application is a U.S. patent application entitled "Methods and Apparatus to Generate Schedules to Execute Functions in a Process Control System" filed on September 29, 2006 Serial No. 11 / 537,303 is a continuation-in-part of and claims priority from that application, the entire disclosure of which is hereby expressly incorporated by reference. technical field [0003] This patent relates generally to process control systems, and more specifically to assigning various functional blocks of a control module to input / output cards on a Fieldbus (Fieldbus) segment and generating schedules to synchronize among the Fieldbus segments The system that executes the function blocks of the control module. Background technique [0004] Process control systems, such as those used in chemical, petroleum, or other processes, typically include more than one centralized process controller that communicates via an analog bus, a digital bus, or a combined ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418
CPCG05B2219/32248G05B19/042G05B19/4185G05B2219/25232G05B2219/31121G05B2219/25229G05B2219/1134Y02P90/02G05B19/0423
Inventor 阿尔珀·T·恩维尔肯尼斯·D·科里沃施恩丹尼尔·迪恩·克里斯滕森拉姆·拉马卡德兰约翰·迈克尔·卢卡斯埃卜特萨姆·S·坦约瑟
Owner FISHER-ROSEMOUNT SYST INC
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