SECURE ONE-WAY INTERFACE FOR OPC DATA TRANSFER

摘要

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.

主权项

1. A system for transmitting OPC information from a first network in a first security domain to a second network in a second security domain, comprising:
a send server having an input coupled to the first network and an output, the send server configured to forward OPC information received via the input on the output; a one-way data link having an input coupled to the output of the send server and an output; a receive server having an input coupled to the output of the one-way data link and an output coupled to the second network; a first stand-alone server within the first security domain coupled to the first network and configured to retrieve OPC information via the first network from at least one OPC server in the first security domain and to forward the retrieved OPC information to the send server via the first network; a second stand-alone server within the second security domain coupled to the second network; wherein the receive server is configured to receive the OPC information from the send server via the one-way data link and to forward the received OPC information to the second stand-alone server via the second network; and wherein the second stand-alone server is configured to receive the OPC information from the receive server and forward the OPC information to one or more OPC clients in the second security domain.