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Method for reproducing the sequence of a program in an automation device

  • US 9,927,791 B2
  • Filed: 10/21/2014
  • Issued: 03/27/2018
  • Est. Priority Date: 10/25/2013
  • Status: Active Grant
First Claim
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1. A method for reproducing a sequence of a program provided for process control in an automation device, comprising:

  • providing a backup program which corresponds to the program in the automation device with regard to process control for processing using a backup device, the backup device processing the backup program during processing of the program in the automation device for process control;

    utilizing the automation device to store an image in a backup memory within at least one predefined or predefinable time during the processing of the program in the automation device for process control, the image representing an internal state of the automation device at this time;

    utilizing the automation device to store, during the processing of the program in the automation device each time a predefinable or predefined interval of time has expired or an event has occurred during the interval of time, a release and process input values in the backup memory, stored releases indicating which processing sections of the program have already been processed by the automation device and further indicating to the backup device that said backup device is permitted to process processing sections of the backup program which correspond to those processing sections of the program in the automation device which have already been processed;

    utilizing the backup device to read the image as well as the stored releases and the process input values from the backup memory; and

    utilizing the backup device to process said processing sections of the backup program, which correspond to those processing sections of the program in the automation device which have already been processed, based on the stored releases and the process input values taking into account the stored image such that a speed at which a sequence of those processing sections of the program in the automation device which have already been processed, which sequence is to be reproduced or reconstructed, is increased.

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