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  • EdgeConnect at each station (300+ sites) on CISCO routers

  • Enterprise Unlimited at control center

  • DataHub Stations at regional hubs (6 locations)

Key Design Decisions

  • EdgeConnect deployed in Cisco IR1101 routers (reduced hardware footprint)Local SQL database for 30-day historian at each site

  • Store-and-forward for satellite communication resilience

  • UNS architecture with Sparkplug B for auto-discovery

Architecture Components

351 second local, 30 second to center

Component

Specification

Quantity

Edge Nodes

EdgeConnect in Cisco routers

300+

Protocols

Modbus RTU, DNP3, HART

Multiple

Data Points

50-200 per site

500,000 total

Update Rate

10 seconds

Optimized

Storage

30 days local SQL

Per site

Redundancy

Store-and-forward, dual path

All sites


Edge Intelligence Configuration

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  • Direct PLC/RTU communication (Modbus, DNP3)Local calculations (flow totals, leak detection algorithms)Python scripts for anomaly detection

  • MQTT Sparkplug B publication to regional/central

Regional Hubs (DataHub Station)

  • Aggregation of area stations

  • Regional historian (1 year retention)

  • Alarm management for area

  • Report generation

Control Center (Enterprise Unlimited)

  • System-wide visualization

  • Predictive analytics

  • Regulatory reporting

  • Integration with PHMSA compliance systems

UNS Architecture

  1. Field Level: Sensors → PLCs/RTUs → EdgeConnect

  2. Edge UNS: Local namespace definition, context added

  3. Regional UNS: Area aggregation via DataHub Station

  4. Enterprise UNS: Complete operational view via Enterprise Unlimited

  5. Cloud Integration: Select KPIs to Azure for corporate dashboards

  6. Network: Process and manage data in the broker

Measured Outcomes

Operational Improvements

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  • Sub-second local response times

  • 30-day edge autonomy during communication loss

  • Automatic configuration deployment to new sites

  • Native integration with existing SCADA without replacement

Growth Architecture

Phase 1 (Completed): 300 pipeline stations
Phase 2 (In Progress): Add 150 compressor stations
Phase 3 (Planned): Integrate 50 storage facilities
Future: ML models for predictive maintenance

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Build This Architecture

Deployment Time for Phase 1: 8-12 weeks for 50 sites
Current Stage: 300+ sites
Required Products: EdgeConnect ($750/site), Enterprise Unlimited ($11,900), DataHub Station ($2,000 x 6)
Total Architecture Cost: ~$250,000 for complete 300-site system

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