The is a free Modbus master simulator provided by the Rilheva IIoT Platform . It is designed for testing and debugging Modbus RTU and TCP/IP devices directly from your Windows PC. Download Instructions
: The tool shows communication errors instantly. How to Set Up Your First Test rilheva modbus poll download
Uses readable ASCII characters for serial communication, optimized for systems with strict timing constraints. Supported Modbus Function Codes The is a free Modbus master simulator provided
Whether you need to bring a sensor online, verify an installation, or permanently configure a relay module, this tool puts the power of a Modbus master in your pocket. By following the download and setup steps in this guide, you can quickly move from installation to active device communication, making your next automation project a little bit simpler. How to Set Up Your First Test Uses
Connect your PC to the same local network subnet as the Modbus slave device using an Ethernet cable.
While the free trial from the Rilheva download is powerful, a licensed version (purchased through Rilheva) unlocks serious capabilities.