Patents by Inventor Douglas F. Tiedt

Douglas F. Tiedt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Discovering and safely transitioning transactors to run mode
    Patent number: 10452461
    Abstract: For discovering and safely transitioning transactors to a run mode, a message module determines if a message received from a communication master after a reset is a discovery message and determines if the message is an initial message received from the communication master. A command module, in response to the message not being the discovery message and the message being the initial message, activates a safety fault. In addition, the command module, in response to the message not being the discovery message and not being the initial message, determines whether the message comprises a valid safety command. In response to the message including a valid safety command, the command module enters the run mode.
    Type: Grant
    Filed: November 30, 2017
    Date of Patent: October 22, 2019
    Assignee: Rockwell Automation Technologies, Inc.
    Inventors: Douglas F. Tiedt, Michael W. Wielebski
  • DISCOVERING AND SAFELY TRANSITIONING TRANSACTORS TO RUN MODE
    Publication number: 20190163558
    Abstract: For discovering and safely transitioning transactors to a run mode, a message module determines if a message received from a communication master after a reset is a discovery message and determines if the message is an initial message received from the communication master. A command module, in response to the message not being the discovery message and the message being the initial message, activates a safety fault. In addition, the command module, in response to the message not being the discovery message and not being the initial message, determines whether the message comprises a valid safety command. In response to the message including a valid safety command, the command module enters the run mode.
    Type: Application
    Filed: November 30, 2017
    Publication date: May 30, 2019
    Inventors: Douglas F. Tiedt, Michael W. Wielebski