Express Interface (Xi) Website

Express Interface (Xi) is a new Microsoft .NET interface designed for secure, reliable, and firewall-friendly access to automation systems. It provides an integrated set of methods for accessing both run-time and historical data, events, and alarms. Developers can learn more at the ExpressInterface.com website about the standard, sample code, and toolkits available.

The Express Interface (453KB PDF) software is supported in the DeltaV v10.3.1 and later releases. You can find additional information about the automation suppliers who are participating and more on the Xi standard itself on the Emerson Process Experts blog.