Design of Remote Controller for Inverter Based on Modbus Protocol

For the inconvenient operation of the motor and operating room,this paper developed a remote controller,used the Modbus communication protocol through the double serial port,connected the inverter and the control system.In the way of host-slaver through the RS-485 bus network constitutes a distributed system control of multiple inverters,and achieved the process data,electric motor movement conditions real-time monitoring goal.The paper elaborated based on the Modbus communication protocol remote controller's hardware composition and the software establishment and the characteristic application.