Remote operation of process control equipment over customer...

Electrical computers and digital processing systems: multicomput – Computer-to-computer protocol implementing

Reexamination Certificate

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C709S201000, C709S217000, C709S227000, C709S246000

Reexamination Certificate

active

07747767

ABSTRACT:
A DCS protocol message addressed to a remote DCS station is generated at a local distributed control system (DCS). The DCS protocol message is received at a local tunneling device. The local tunneling device packages the DCS protocol message into a SCADA protocol message. The SCADA protocol message is transmitted from the local tunneling device to a remote tunneling device. The remote tunneling device receives the SCADA protocol message. The SCADA protocol message is unpackaged into a DCS protocol message at the remote tunneling device, and the DCS protocol message is placed on to a remote DCS such that it flows to the remote station. The DCS protocol message is received at the remote station.

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patent: 6400722 (2002-06-01), Chuah et al.
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patent: 2003/0188001 (2003-10-01), Eisenberg et al.
International Search Report and Written Opinion issued in PCT/US07/76642, dated Feb. 20, 2008.

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