Create the first PLC-facing connection before configuring the plant.
Install ModbusSim, select the devices, bind a physical, virtual, or loopback adapter, and confirm the first controller-facing Modbus endpoint.
Install and open ModbusSim
Request the Windows installer, install it, and open ModbusSim in permanent Starter with all tools. Activate a key only for a paid usage license or the optional Engineering trial.
Select I/O modules and compressors
Create the device inventory first. Confirm each compressor model, refrigerant, and behavior selection, plus every required I/O module instance.
Create the first PLC-facing endpoint
Bind a Modbus TCP endpoint to the intended physical, virtual, or loopback adapter, set the Unit ID and register-map profile, then confirm the external controller can exchange commands and feedback. Use RTU when the project requires a serial path.
Confirm Live System before System Integration
Verify devices, endpoints, and expected points are live. Open Configure Plant only after inventory and communication are correct, then follow Apply topology → Compile → Review/Activate before running.
Workflow screenshots
Use the localized application views while following this guide.
