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PLC configurators & BOM builders

Spec a complete control system — controller, racks, I/O, communications and distributed stations over the fieldbus — for the major automation platforms. Compatibility, power and network topology update live, and you can export the bill of materials in seconds.

More platforms on request. Need something configured? Talk to our engineers →

Downloadable tools

Free desktop utilities for your bench

Standalone apps from the Praximus toolbox — no install, just download and run.

Modbus simulator

ModSim

Simulate Modbus TCP / RTU devices on your PC — drive holding/input registers, coils and discrete inputs to test HMI, SCADA and PLC communications without field hardware.

Windows 64-bit~41 MBPortable .exe
Download ModSim

Unsigned build — Windows SmartScreen may prompt; choose “More info → Run anyway”.