3.2 Modbus master mode

RS485 runs in master mode

For example, the device connects a T/H sensor on RS485.
sensor slave ID=1
RS485 communication parameters: 9600, n, 8, 1
Modbus register map:

In “RS485” page

Go to “Modbus” page

Set the register0 to read humidity, register 1 to read temperature.

Video Tutorial