Drives Inverters Guides PLC Guides

Inovance MD200 “Modbus RTU” via Modbus Poll

Written by

Hello friends!
Inovance MD200 is an inverter originating from China, with low cost but good quality, in addition, it also supports control by Modbus RTU communication.

Today will guide you to control Inovance with Modbus Poll software installed on your computer, this is very light and completely free software.

Computer & Inovance MD200 “Connection Diagram”

+ We have to use “USB to RS485” cable to help the computer communicate with the MD200 inverter

Inovance MD200 Modbus Parameters Setting

To be able to control and monitor the Inovance MD200 inverter using the Modbus RTU protocol, we need to set the following communication parameters:

Registers Address

+ VFD Control Address = 2000 (hexa)

  • Set Word “2000” = 1 >>> Forward Run
  • Set Word “2000” = 2 >>> Reverse Run
  • Set Word “2000” = 6 >>> Stop

+ Set Frequency Address = 1000 (hexa)
Frequency Reference = (0 to 10000 dec) ~ (0 to Max Frequency)

+ Output Frequency Address = 1001 (hexa)
Output Voltage Address = 1003 (hexa)
Output Current Address = 1004 (hexa)

Modbus Poll Connection Configuration

We need to set the connection communication parameters for the software similar to those installed for the Inovance MD200.

Inovance MD200 Modbus Example

+ Frequency Setting Command

+ Motor Control Command

+ Data Monitoring

Detailed Instruction Video


Related Software and Documents

>>> Modbus Poll Software Free Download
>>> Inovance MD200 Manual Download


If you find this article interesting and useful, please share it with the community. Subscribe to Youtube channel and Website to read new articles of

Thanks and Best Regards!

About the author

Leave a Comment Protection Status