Location dependent control access in a process control system

A process control, control area technology, applied in the direction of electrical program control, total factory control, total factory control, etc., can solve problems such as increasing the "noise" level

Active Publication Date: 2009-03-18
FISHER-ROSEMOUNT SYST INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In some respects, while operators or maintenance personnel are notified both at fixed workstations and on their portable de

Method used

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  • Location dependent control access in a process control system
  • Location dependent control access in a process control system
  • Location dependent control access in a process control system

Examples

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Embodiment Construction

[0021] Figure 1 is a schematic representation of a process control system in a process plant, where portable devices are used to view, configure, and otherwise communicate with fixed elements of the plant, and where specific The location of the user of the portable device or the location of the portable device itself controls access to various elements of the process control system. More specifically, process control system 100 in process plant 101 is divided into a number of control areas and / or units 102-104. Process plant 101 includes one or more process controllers 110 communicatively connected to one or more host workstations or computers 120 (which may be any type of personal computer, workstation, etc.), some of which Has a display screen. Additionally, access server 121 may be communicatively coupled to one or more process controllers 110 . Alternatively, one of the workstations 120 and the access server 121 may be implemented as an integrated unit. Registry 125, wh...

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Abstract

The invention provides a location dependent control access in a process control system. A method of accessing an element in a process control environment using a portable communicator includes defining a plurality of control areas within the process control environment, determining a position of a user operating a portable communicator with respect to one or more of the control areas, establishing an identity of the user, and selectively allowing the user to access an element within the process control environment via the portable communicator depending on the determined position of the user with respect to the one or more control areas and on the identity of the user.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Patent Application No. 60 / 971,171, entitled "Location Dependent Control Access in a Process Control System," filed September 10, 2007, and hereby places The disclosure of this application is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates generally to process control systems and, more particularly, to the use of portable devices in process control plants. Background technique [0004] Process control systems, such as those used in chemical, petroleum, or other process plants, typically include a centralized process controller communicatively connected to at least one host computer via an analog, digital, or mixed analog / digital bus or operator workstation and one or more field devices. Field devices can be, for example, valves, valve positioners, switches, sensors (eg, temperature, pressure, and flow senso...

Claims

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Application Information

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IPC IPC(8): G05B19/418H04L12/28
CPCY02P90/02
Inventor 尼尔·J·彼德森特雷弗·D·史莱斯
Owner FISHER-ROSEMOUNT SYST INC
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