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Intelligent interface for a distributed control system

A distributed control and interface system technology, applied in general control systems, control/regulation systems, program control, etc., can solve problems such as failure to prevent incorrect or invalid commands from being sent, equipment damage, and incorrect operation of control systems

Inactive Publication Date: 2013-07-24
ABB (SCHWEIZ) AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This is very important since errors in the configuration can lead to incorrect operation of the control system
[0004] In addition to the above, conventional DCS interfaces generally have no features that prevent incorrect or invalid commands from being sent to the DCS
Therefore, incorrect or invalid commands sent over such an interface may result in disruption of the DCS or even damage to certain equipment that is part of the DCS

Method used

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  • Intelligent interface for a distributed control system
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Embodiment Construction

[0015] It should be noted that in the following detailed description, the same components have the same reference numerals regardless of whether they are shown in different embodiments of the present invention. It should also be noted that, in order to clearly and concisely disclose the present invention, the drawings may not necessarily be to scale and certain features of the invention may be shown in somewhat schematic form.

[0016] now refer to figure 1 , showing a schematic diagram of a DCS 10 with which the present invention may be used. The DCS 10 includes a loop 12 that includes one or more network cables 14 to which a plurality of nodes 16, 18, 20, 22, 24 are connected. Each node includes an electronic device or devices connected to the loop 12 for communication with other nodes on the loop 12 . Each node has a unique address on the loop, and each node is connected to the loop 12 through a terminal unit (TU) 28 . Although in figure 1 Only one loop is shown, but it...

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Abstract

An intelligent interface system is provided for connecting an external application to a distributed control system (DCS). The interface system is operable to automatically scan the DCS to determine its configuration and build a topology model of the DCS. The topology model is used to determine whether data requested from a module in the DCS can be provided by the module. The topology model is constructed to be thread-safe. A throttling mechanism in the interface system protects the DCS from being subjected to excessive data requests.

Description

technical field [0001] The present invention relates to an interface for a distributed control system (DCS), and more particularly to an intelligent interface for a DCS. Background technique [0002] A DCS is a system dedicated to the control of an industrial process, where the system consists of control modules that are not centrally located but instead distributed throughout the process, where each sub-process of the industrial process is composed of one or more controlled by a control module. Other components of the DCS include input and output (I / O) modules and communication modules. Communication between modules within a DCS typically utilizes proprietary protocols. [0003] For DCSs with proprietary communication protocols, interfaces are typically provided to enable external applications or systems, such as maintenance management systems or supervisory systems, to obtain information from the DCS and otherwise communicate with the DCS. Conventional DCS interfaces ut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/418H04L12/24
CPCG05B19/4185G05B2219/31124H04L41/12G05B2219/25232Y02P90/02G05B19/41855
Inventor T·M·森特乔治D·M·卡尼P·E·亨卡
Owner ABB (SCHWEIZ) AG
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