Date: 2025 07-July 29

Speaker: Scott Szymanski, Lead Developer of Data Hub Project
Event: Annual Emerson Ovation User's Conference

Root

• Data Hub 2.0 release
• REST APIs
• Web apps
• Ovation Green SCADA integration
• Demo

History

• The point: Make data accessible outside of the control room
  • HTTP/S protocols
  • OPH data
  • REST APIs
    • Not ideal for streaming high volume Ovation point data to other systems - OPC is better for this
    • Automating routine tasks for reporting
  • Web applications
    • Web HMI
    • Signal diagrams
    • Historical reviews will come, etc

Security

• Authentication
• User roles and point security groups
• HTTPS encryption in transit
• JWT expiring tokens
• Read only mode disables all write API's
  • Write to only over ride historic data
• Audit logging of all requests
• Operator events sent to OPH

Deployments

• Standard deployment versus DMZ deployment
• Standard deployment is often not allowed by IT groups
• The Purdue model of network segregation * look this junt up*
• Future: Data diode

Data Hub 2.0.0

• First available in June 2025
• Concerned with supporting Ovation 4.0 release.
• Upgrading from Data Hub 1.1.0 does not require new licenses; lower does require a new license

REST APIs

• Agnostic
  • Node Red
  • Python
  • JavaScript
  • C#
• Responses in JSON format
• Write back functionality
  • Acknowledge and reset alarms
  • Tuning changes, set point changes
  • Talk to stations for auto versus manual control
  • Tuning: Keyboard (?)
• Where Used functionality
• Point ancillary fields
• Point I/O fields

Use Cases

• see photograph of slide

Web Apps

• Ovation Data Hub Applications
• Advantages over RDP
  • More secure
  • More scalable
  • Less data shared
  • Reduces Windows licensing costs
• Available
  • Developer tools for REST APIs - Swagger
  • Ovation System Health Monitor
  • Intelligence Framework Advisory Dashboard
  • Operator applications are being developed
• Not Electron - WebView2 - just "install website" via Edge.

Ovation Green SCADA (OGS)

• Purchased from a third party to support renewables

"The EDS will never go away - We will always have an EDS product."

Datalink mode versus Ovation Highway mode.

Remote work versus security. --> More for remote operation centers, which will still be behind a firewall.