Data Logging and Reports on SCADAPack RTUs
Key Takeaway
How to configure onboard data logging on SCADAPack RTUs — log triggers, storage, timestamps, DNP3 event buffering, and data retrieval.
Quick Answer
SCADAPack RTUs log data to internal flash memory and DNP3 event queues. Configure periodic or event-triggered logging in Telepace Studio. During communication outages, SCADAPack buffers all events with timestamps and reports them when the SCADA master reconnects.
Logging Types
- Periodic — Log register values at fixed intervals (1 min, 5 min, 15 min)
- On-change — Log when a value changes beyond deadband
- On-alarm — Log when alarm conditions trigger
DNP3 Event Buffering
DNP3 event queues serve as a built-in data log. Class 1, 2, and 3 events are buffered with timestamps during communication outages. On reconnection, the SCADA master retrieves all buffered events in chronological order — no data loss.
Time Synchronization
SCADAPack supports SNTP and GPS time sync for accurate event timestamps — critical for production accounting and regulatory compliance in oil and gas.
Frequently Asked Questions
SCADAPack buffers events in its DNP3 event queue with original timestamps. When the SCADA master reconnects, all buffered events are reported in order — no data loss.
Select models support GPS receivers for precise time synchronization, important for custody transfer and regulatory compliance.