Blog

Field notes, release write-ups, and the occasional waveform obsession.

• May 2026

  DNP3 field guide — classes, objects, and variations

  Class scans (poll timing is user-defined), point types, pivoted object/variation tables, and gateway mapping notes.

• April 2026

  DNP3 vs Modbus vs OPC UA in EMS/SCADA

  Tables, trade-offs, and when each protocol earns its keep in energy management and SCADA stacks.