Secure one-way interface for OPC data transfer
US9088558B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2013 |
| Grant date | Jul 21, 2015 |
| Priority date | — |
| Expiry date | Nov 16, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system for transmitting OPC information from a first network in a first security domain to a second network in a second security domain. A first stand-alone server within the first security domain retrieves information via the first network from a first OPC server in the first security domain and forwards the retrieved information to a send server coupled to the first network. The send server forwards the received information received to a receive server via a one-way data link. The receive server receives the information from the send server and forwards the received information to a second stand-alone server via the second network. The second stand-alone server receives the information from the receive server and forwards the information to one or more OPC clients in the second security domain.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.