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FIELD DEVICE CONFIGURED FOR WIRELESS DATA COMMUNICATION

  • US 20070229255A1
  • Filed: 05/25/2007
  • Published: 10/04/2007
  • Est. Priority Date: 10/27/2000
  • Status: Active Grant
First Claim
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1. A field device comprising:

  • at least one actuator and/or sensor configured to alter and/or sense a control and/or process variable in a manufacturing field;

    a wireless transmitter and/or receiver configured for wireless data communication between the field device and a remote device when activated;

    an interface configured to receive operating power;

    an energy buffer configured to store energy from the received operating power and to supply the stored energy to the wireless transmitter and/or receiver during wireless data communication; and

    a controller configured to evaluate the stored energy available in the energy buffer prior to activation of the wireless transmitter and/or receiver and delay activation of the wireless transmitter and/or receiver when the evaluation indicates that the stored energy in the energy buffer is insufficient to sustain operation of the wireless transmitter and/or receiver during wireless data communication.

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