Background Information

• DNP

  • Developed by GE Harris
  • Based on early parts of IEC 870-5
  • Turned over to Users Group in 1993

• IEC 870-5-101

  • Technical Committee 57 Working Group 03 Chartered to develop the standard
  • Documentation finalized June 1995

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Slide 6 of 30

• DNP continues to be expanded by the addition of new objects, under the guidance of the DNP Technical Committee.
• IEC 870-5-101 has been expanded with new objects to transport more-complete time tags. Further amendments are in production by the IEC Working Group.