You will typically see two options:

Whether you are an automation student, a field service technician, or a control systems engineer, Rilheva Modbus Poll delivers the performance and reliability required for critical industrial networks. Perform your download today, connect to your device, and start polling with confidence.

Enter the (Unit ID) of the target device (default for TCP is usually 1 , while RTU devices vary from 1 to 247 ).

Connect your PC to the RS485 port using a USB-to-RS485 converter. Open Modbus Poll. Go to Connection > Connect . Select .