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Associating And Evaluating Status Information For A Primary Input Parameter Value From A Profibus Device

  • US 20110130848A1
  • Filed: 11/16/2010
  • Published: 06/02/2011
  • Est. Priority Date: 07/13/2007
  • Status: Active Grant
First Claim
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1. A method for managing Profibus device information in a distributed control system wherein a Profibus device is communicatively coupled via a network link to an I/O module assembly, wherein the I/O module assembly receives Profibus device messages from the Profibus device containing information relating to connected device modules, and wherein the I/O module assembly includes one or more tasks for extracting and processing information contained within the received Profibus device messages according to a Profibus device configuration, the method comprising:

  • receiving, by the I/O module assembly, input parameter data originating from a Profibus device message issued by a connected Profibus device;

    processing, by an I/O request processing task, in accordance with the Profibus device configuration, the Profibus device message by performing the additional steps of;

    extracting input parameter values from the Profibus device message according to input parameter configuration entries in the Profibus device configuration, anddepositing the input parameter values in an I/O data repository on the I/O module assembly, the depositing step including storing;

    a measured value for a first input parameter, anda status value for a first status parameter corresponding to the first input parameter; and

    providing, by the I/O module assembly, a data status value with the measured value for the first input parameter in accordance with an I/O read operation executed on the I/O module assembly wherein the data status value is based on the status value for the first status parameter.

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