Set Modbus master

Set Modbus master

As a modbus master, RTU can read registers on RS485, set these registers as follow

Register description

E.g. a register address is 40012; slave id is 1, set as below

The 5 check boxes are valid for Keep (holding) and Input registers, default read 16-bit register, if 32-bit need check “32bits register” and “Float”

Register type is Coil or Discrete state, only choose the normal state
Normal state is on, means RTU alarm when the register off

Attention:
RTU series port rate is 9600, please set slave’s rate same as the RTU