Comparison · vs CODESYS

Melanite vs CODESYS on Raspberry Pi

CODESYS is a capable, widely used IEC 61131-3 soft PLC, programmed in a desktop development system. Melanite is programmed on the device itself, in the browser, with no code — and adds live 3D, smart-home protocols and an HMI written in your own HTML.

Melanite compared with CODESYS, capability by capability
Capability Melanite CODESYS
Real-time soft PLC Yes Yes
EtherCAT master Yes Yes
Programmed on the device, in the browser, without code CODESYS projects are written in the CODESYS Development System and downloaded to the controller Yes No
AI assistant acting on the running device CODESYS offers AI support for its desktop development system (MCP add-on) Yes Partly
Operator HMI in your own HTML, editable on the device CODESYS WebVisu is HTML5 and touch-capable, but designed in the development system Yes Partly
Spatial 3D editor (live, logic-driven) Yes No
MQTT and WLED in the same graph MQTT through the separately licensed IIoT Libraries SL; no WLED Yes Partly
Free for personal use CODESYS Control for Raspberry Pi SL is €55 for non-commercial use; without a licence it runs as a 2-hour demo Yes Partly

Checked on 2026-09-25 against CODESYS's own public documentation. If something here is out of date, tell us and we correct it.

Sources

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Verdict

Choose Melanite when the machine should be programmable by the person who knows the process, on the device, without a desktop toolchain.