| 摘要 |
Methods and systems are provided to replicate and secure process control system data. Devices coupled to a process control network produce data that is collected by a host on the network. This data may be provided to users of computers that are not on the process control network, without increasing the network's vulnerability to network attacks. To achieve this security, an isolation system including a firewall and an application workstation are placed between the host and the non-network computers. The host pushes the data through the firewall to the application workstation, which includes the same application program interface found on the host. Thus, non-network computers can not identify that the data provided to them is coming from the application workstation instead of the process control network. The firewall is configured to prevent most or all outside communications with the network. Thus, the network is protected from attacks while providing its data to non-network computers.
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