Patent ID: 7836217
Filing Date: 2010-11-16
Classification: G05B,H04L,Y02P

Abstract:
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: maintaining, by the I/O module assembly, a reference linking the first status parameter 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.