Where can I find the register map for the ONOKOM MD-VRF-MB-B?

The register map is not included in the template source material. Contact ONOKOM directly or download the MD-VRF-MB-B technical documentation from their website for a full list of supported registers.

Can I control multiple Midea indoor units through a single MD-VRF-MB-B gateway?

Yes, the gateway supports multiple indoor units on the Midea communication bus. Each unit is typically assigned a unique sub-address within the gateway configuration. Consult the ONOKOM documentation for addressing details.

The ModbusCloud gateway cannot connect to the ONOKOM device. What should I check?

Verify that both devices are on the same network and that the IP address and TCP port are configured correctly. Ensure Modbus TCP is enabled on the MD-VRF-MB-B gateway and that no firewall rules block the connection.

What baud rate and communication settings should I use?

Since this template uses Modbus TCP, serial baud rate settings do not apply to the connection between the ModbusCloud gateway and the ONOKOM device. However, the MD-VRF-MB-B internal connection to the Midea bus has its own settings, which should be left at the ONOKOM factory defaults unless specified otherwise.

Free Modbus template: ONOKOM AIR MD-VRF-MB-B

Name: ONOKOM AIR MD-VRF-MB-B
Brand: Onokom
SKU: 6f1efae5-ebae-4281-96f8-21442b6ee22a

This template integrates Midea air conditioners via the ONOKOM MD-VRF-MB-B gateway into ModbusCloud. It enables remote monitoring and control of VRF and split air conditioning units over Modbus TCP.

ONOKOM AIR MD-VRF-MB-B

Overview

Use cases

Installation

Things to watch for

Working with Modbus in your projects?

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