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A major midstream operator needed to modernize monitoring across hundreds of remote pipeline stations while maintaining 24/7 operations. Legacy RTUs required expensive middleware, limited data collection, and provided no local intelligence.
[Architecture Overview]
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EdgeConnect at each station (300+ sites) on CISCO routersEnterprise Unlimited at control center
DataHub Stations at regional hubs (6 locations)
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
[Technical Specifications]
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Component | Specification | Quantity |
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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 |
30 days local SQL
Per site
Redundancy | Store-and-forward, dual path | All sites |
[Implementation Details]
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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
Aggregation of area stations
Regional historian (1 year retention)
Alarm management for area
Report generation
System-wide visualization
Predictive analytics
Regulatory reporting
Integration with PHMSA compliance systems
[Data Flow]
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Field Level: Sensors → PLCs/RTUs → EdgeConnect
Edge UNS: Local namespace definition, context added
Regional UNS: Area aggregation via DataHub Station
Enterprise UNS: Complete operational view via Enterprise Unlimited
Cloud Integration: Select KPIs to Azure for corporate dashboards
[Results Achieved]
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Network: Process and manage data in the broker
75-80% reduction in operational costs
Zero middleware licensing fees
100% uptime during satellite outages (store-and-forward)
60% reduction in alarm flooding
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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
[Scalability Path]
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
All phases use same architecture pattern with no redesign required.
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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
Challenge: Operate and observe hundreds of distributed midstream sites with PLCs and intermittent, bandwidth-limited links—while keeping on-site autonomy and ensuring a unified, secure, and scalable publish/subscribe model for corporate operations, analytics, and alarms.
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Scada & Enterprise Applications |
↑↓ |
Redundant Brokers |
↑↓ |
EdgeConnect Product Edition |
↑↓ |
PLCs on field: DF1, ControlLogix, etc... |
Layer | Component | Role | Notes |
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Field | ControlLogix (CIP), DF1 devices | Signals/controls | - |
Edge (Site) | EdgeConnect (Linux) | Collection, buffer, publish | Runs on router/IPC; AutoStart; Watchdog; local logging |
Transport | Satellite / WAN | Telemetry backhaul | - |
Brokers | MQTT brokers (HA, N=4) | Pub/Sub backbone | Persistent sessions, retained health topics |
Consumers | SCADA/Historian/Analytics | Enterprise visibility & actions | - |
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