Kepware KEPServerEX

Judgement

What it is

Integration

What it does

Industrial connectivity server with hundreds of drivers that reads data from PLCs and devices and exposes it over OPC UA, MQTT and other protocols.

Adopt it when

A plant needs to pull data from a mix of PLC brands into SCADA, MES or historian systems.

Watch out

Licensing is per driver and Windows-only, and costs mount across many device types.

Ready for

Production-ready

Runs as

Self-hosted server

Built with

Windows and OPC UA

What the license allows

Closed source: you use it under the maker's terms and cannot change or resell the code.

Judged on 2026-11-03 from the maker's description and Wikipedia. The license and age lines are worked out directly.

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Under it

Every program, Kepware KEPServerEX included, runs on a microchip.

How compilers were built, back to punched paper tape