Patent ID: 7689871
Filing Date: 2010-03-30
Classification: G05B

Abstract:
1. A method for monitoring a system that includes a control unit serving as a master, a plurality of control units serving as slaves, and a monitoring module, comprising: providing, in reply to an inquiry, in each instance a response from the master and the slaves; checking by the monitoring module a joint response provided on the basis of responses of the providing step, wherein the joint response is provided taking into consideration one response defined as correct and one true response of the control unit respectively; and checking by the control unit an inquiry as to whether the inquiry is correct or false and in which as a function of this the response is ascertained; wherein the response to a correct inquiry is provided as a function of an inquiry identification code defining the inquiry and a control unit identification code defining the control unit, and wherein the response Antw to a correct question is ascertained according to the formula: Antw=(Frage_Id+1)*Steuerg_Id using the inquiry identification code Frage_Id and the control unit identification code Steuerg_Id.