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FROM: H. Lee Smith
TO: Kathleen Davis
SENT: Tuesday, May 12. 12:38 p.m.
SUBJECT: May issue article: DNP3 vs. IEC 61850
Kathleen,
I was very disappointed by your article; many of us in both protocol camps have been fighting to change this misconception of a battle. I, as well as many others, have been involved with both protocols from the beginning of each. I suggest you would have been better served to talk with a wider audience than just one person.
Some points you missed: some U.S. utilities are using both protocols on the same LAN in the same substation--for example, Goose messages for protection functions and DNP3 for automation functions.