Joseph Lyman Bowen

US Patent:

20030110302, Jun 12, 2003

Filed:

Oct 18, 2002

Appl. No.:

10/273817

Inventors:

Steven Hodges - Boise ID, US
Joseph Bowen - Greenleaf ID, US
David Poole - Boise ID, US

International Classification:

G06F015/16

US Classification:

709/249000, 709/230000

Abstract:

An apparatus and method for communicating DNP protocol messages across networks that maybe slower, less reliable, and/or bandwidth-cost-constrained are provided. A DNP Bridge server capable of sending/receiving messages to/from a DNP Master System, a DNP Bridge Slave Interface unit capable of sending/receiving DNP message to/from a DNP Slave Device are used. The DNP Bridge server and DNP Bridge Slave Interface act together to transparently link the DNP Master System to the DNP Slave Device over slow, unreliable networks. The DNP Bridge server and DNP Bridge Slave Interface use a combination of techniques to minimize message transmissions and DNP protocol errors over slow, unreliable networks.