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Optimizing SCADA Sensor Deployments: DNP3 over TCP vs. UDP
This white paper examines the technical and operational trade-offs between using TCP and UDP for DNP3 protocol communications in SCADA sensor deployments, with a focus on Power Monitors Inc.'s Boomerang voltage monitors. It analyzes protocol redundancy, network infrastructure impacts, latency considerations in cellular modem environments, and vendor compatibility, providing actionable guidance for selecting the optimal protocol based on network capabilities and deployment scale.
Key topics include:
- TCP and UDP Defined
- DNP3 Acknowledgments
- Infrastructure Considerations
- Latency with Cell-Modem Enabled Sensors
- DNP3 Limitations Based on Protocol Selection
- Troubleshooting
Why utilities should care:
Protocol choice directly affects network load, latency, and integration with SCADA systems. Understanding TCP and UDP impacts enables efficient scaling, cost control, and reliable sensor data flow, especially in cellular or legacy network environments.
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