OpenUNS is an open‑source Unified Namespace (UNS) for industrial automation, built on OPC UA, SQL Server hierarchyid, and MQTT Sparkplug B.
It provides a free, standards‑driven backbone for SCADA, measurement, and IIoT systems — with paid support available for enterprises that need reliability, compliance, and integration expertise.
Industrial data is often siloed, fragmented, and locked behind proprietary systems.
OpenUNS delivers a single source of truth for plant data by:
- Modeling assets and tags in a hierarchical OPC UA namespace.
- Persisting structure and values into SQL Server with hierarchyid.
- Distributing telemetry via MQTT Sparkplug B for scalable IoT/cloud integration.
- Enabling multi‑tenant isolation and controlled sharing between organizations.
OpenUNS is a full industrial platform built around a Unified Namespace (UNS).
It integrates SCADA, measurement, schematics, P&ID visualization, GIS mapping, ticketing, forms, and field data capture into one open-source backbone.
- PLCs, RTUs, Flow Computers, Sensors
- Protocols: Modbus, DNP3, EtherNet/IP, ROC, TotalFlow
- External GIS data feeds (pipelines, wells, facilities)
- OPC UA Server Runtime
- Normalizes telemetry into a hierarchical namespace
- Exposes tags, alarms, and metadata
- SQL UNS (hierarchyid)
- Persists structure, values, and relationships
- Supports multi-tenant isolation and controlled sharing
- Stores schematics, tickets, GIS layers, and forms
- MQTT Sparkplug B Broker
- Publishes UNS tags as lightweight telemetry
- Enables scalable distribution to IoT/cloud consumers
- SCADA Dashboards
- Real-time monitoring, alarms, and control
- Measurement
- Flow computer integration
- Audit trails and regulatory reporting
- Schematics & P&ID
- Hierarchical models mapped to diagrams
- Interactive visualization of assets and processes
- GIS
- Pipelines, wells, and facilities mapped geospatially
- Integration of telemetry with spatial context
- Ticketing
- Work orders, incidents, and maintenance tracking
- Includes Transloading Ticketing for logistics and product movement
- Forms
- Configurable templates for inspections, readings, and compliance
- Offline-first field data capture
- Field Data Capture
- Mobile/web forms for inspections and readings
- Offline mode with sync to UNS
- Blazor Web App
- Multi-tenant dashboards
- Role-based access and sharing controls
- Mobile Clients
- Field data capture and forms
- Offline-first design
- GIS Viewer
- Map-based visualization of pipelines, wells, and facilities
- SCADA operators
- Measurement analysts
- Maintenance teams
- Field technicians
- GIS engineers
- Logistics coordinators (transloading)
- Enterprise systems (MES, ERP, Cloud Analytics)
Devices / Field Equipment ├── PLCs, RTUs, Flow Computers, Sensors └── Protocols: Modbus, DNP3, EtherNet/IP, ROC, TotalFlow ↓ OPC UA Server Runtime ├── Normalizes telemetry into hierarchical namespace └── Acts as SCADA core ↓ SQL UNS (hierarchyid) ├── Persists structure, values, relationships ├── Stores schematics, tickets, GIS layers, forms └── Supports multi-tenant isolation & sharing ↔ MQTT Sparkplug B Broker ├── Publishes UNS tags as lightweight telemetry └── Enables scalable IoT / cloud distribution ↓ Application Modules ├── SCADA Dashboards ├── Measurement ├── Schematics & P&ID ├── GIS (Pipelines, Wells, Facilities) ├── Ticketing (including Transloading) ├── Forms └── Field Data Capture ↓ User Interfaces ├── Blazor Web App ├── Mobile Clients └── GIS Viewer ↓ Tenants / Enterprise Systems ├── Operators, Analysts, Maintenance Teams, Field Technicians, GIS Engineers, Logistics Coordinators └── Integrations: MES, ERP, Cloud Analytics