Reduce baud rate to 9600. Also, ensure no other software (like FactoryTalk or Modbus scanner) is holding the COM port open.
The software is designed to be intuitive, offering a simulation mode that allows engineers to test their logic before deploying it to physical hardware, saving time and reducing the risk of damage to machinery. zelio soft 2 v5.3.1 download
Once you have secured the , follow this guide to ensure a smooth installation. Reduce baud rate to 9600