Brownfield Modbus Retrofit to Unified Namespace: Edge Gateway Options Compared
Retrofit Modbus RTU and TCP machines into a Unified Namespace: gateway options, polling vs report-by-exception, data modeling, and failure modes in brownfield plants.
OpenPLC Runtime v4 vs v3: What Changed and How to Migrate (2026)
OpenPLC v3 is end-of-life. Compare v4 vs v3 architecture, REST/JWT API, plugins (Modbus, OPC UA, EtherCAT, S7), retain in v4.2 and a migration plan.
Industrial Protocol Gateway Architecture: OT/IT Translation (2026)
A 2026 reference architecture for industrial protocol gateways: Modbus, OPC UA, MQTT and Profinet translation, edge buffering, security zones, and redundancy.
Modbus Protocol: Complete Technical Guide (Updated 2026)
Modbus RTU, ASCII, and TCP explained — frame structure, function codes, security gaps in 2026, and migration to MQTT/OPC UA.