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Energy saving operation of a hardwired communication interface and a function unit provided for the communication interface of a field device

  • US 8,281,174 B2
  • Filed: 10/08/2008
  • Issued: 10/02/2012
  • Est. Priority Date: 10/09/2007
  • Status: Active Grant
First Claim
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1. A field device of process automation technology, comprising:

  • a hardwire communication interface; and

    a functional unit associated with said hardwire communication interface, said functional unit is embodied in such a manner, that it performs sending and/or receiving of digital signals via said hardwire communication interface, wherein;

    the field device is embodied in such a manner, that said functional unit is operated in clocked operation at least when the field device is operated in a standby mode, wherein, in the clocked operation, active time periods, in which said functional unit is activated, alternate with turned-off periods of time, in which said functional unit is switched off.

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