Patent ID: 7280565
Filing Date: 2007-10-09
Classification: G05B,H04J,H04L

Abstract:
1. A method for linking decentralized input/output modules in a synchronous clocked communication system comprising: communicatively coupling each of a first decentralized input/output module and a second decentralized input/output module to a means for generating a communication clock; communicatively coupling each of a first station associated with the first decentralized input/output module and a second station associated with the second decentralized input/output module to the means for generating a communication clock and the its associated decentralized input/output module; and synchronizing the at least one decentralized input/output module to the communication clock of the communication system; wherein at least one of the stations is selected from a control unit and a device to be controlled; wherein the signals of a device to be controlled are registered and detected at a desired time at the input of the decentralized input/output module and the time is adjusted at the input of the module with respect to the communication clock of the communication system or a clock derived therefrom; and wherein the registration and detection of signals at the input of each of the decentralized input/output modules are synchronized in such a manner that the registration and detection takes place at the same time with respect to the communication clock of the communication system at the respective decentralized input/output modules.