Remote operation of process control equipment over customer supplied network
US8219698B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2011 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Apr 15, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.