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Posts Tagged ‘Express Interface’

OPC Express Interface (OPC Xi) Technical Overview Slidecast

Posted in Interoperability, Screencast on Tuesday, November 17th, 2009. No comments yet
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Update 2: OPC Xi is now called OPC .NET 3.0. Original post: In an earlier post, Secure, Firewall Friendly Communications, I described the new OPC Express Interface (Xi) standard. It overcomes some of the inherent issues in securely communicating information between process automation and asset management systems with other applications in a process manufacturing facility. […]

Secure, Firewall Friendly Communications

Posted in Emerson Exchange, Interoperability, Technologies on Thursday, October 15th, 2009. No comments yet
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One of the issues with the proven OPC standard has been the communications between OPC client and OPC server when a firewall separates them. The cyber-security challenges that process manufacturers face were not envisioned in the original release of the OPC specification in the mid-1990s. The network transport is based on Microsoft’s distributed component object […]