OpenPLC v3 + Modbus TCP: Open-Source PLC Architecture
OpenPLC v3 reference architecture with Modbus TCP — runtime internals, IEC 61131-3 languages, hardware targets, and a production deployment pattern for open-source PLCs in 2026.
Programmable Logic Controller (PLC) vs SCADA: Architecture, Roles, and How They Work Together
Clear PLC vs SCADA comparison — scan cycles, IEC 61131-3 languages, HMI integration, DCS vs SCADA, and how both fit into modern industrial architectures.