Modbus communication modules for Daikin air conditioners

Modbus communication modules for Daikin air conditioners 

This category contains dedicated Modbus communication modules that allow Daikin air conditioners from the Home, VRV and Skyline series to be easily integrated with building automation systems such as BMS or SCADA. These modules use the Modbus RTU protocol (RS-485) and are designed to provide advanced functionality in energy management, monitoring and remote control. Whether in commercial buildings, offices or industrial spaces, the use of Modbus modules significantly enhances HVAC system efficiency, saves operational costs and ensures better fault diagnostics.

Remote access to key parameters such as temperature setpoint, fan speed, operating mode or error codes reduces the need for manual interventions and improves user comfort. With these modules, facility managers can automate air conditioning control in response to occupancy, time schedules or external conditions, contributing to energy savings and carbon footprint reduction.

Compatibility and application

The modules support a wide range of Daikin indoor units. They can be used with 1:1 applications (one gateway per air conditioner) or in small networks of up to 16 devices in group mode for VRV and Skyline series units. However, for most effective performance, single-unit control is preferred. You can verify compatibility in the official COMPATIBILITY LIST.

These modules are ideal for hotels, office spaces, retail environments and any installation where centralized HVAC supervision is needed. They provide seamless communication with building controllers, PLCs or HMI panels through Modbus Master systems.

Features and technical specifications

• Support for Modbus RTU (RS-485), operating as a slave device
• Can be connected in networks of up to 63 devices
• Read/write of over 30 key parameters per unit: temperature, status, power level, alarms
• Group control available for VRV and Skyline (not for individual unit control)
• Configuration via DIP switches or Modbus registers
• Simultaneous use with IR remote controls
• Electrical isolation: 1500VDC
• Wall or DIN rail mounting (TH35)
• No external power supply required

Integration and configuration

The configuration process is designed to be user-friendly, requiring no specialized software. DIP switch settings allow selection of Modbus address and communication parameters. Advanced integrators can use Modbus function codes to configure device behavior or log HVAC data in external SCADA systems. For remote maintenance scenarios, modules enable rapid error reporting and remote troubleshooting capabilities.

Why choose Daikin Modbus communication modules?

The use of Modbus-enabled air conditioner gateways ensures a high level of interoperability between HVAC devices and third-party controllers. These modules are manufactured with reliability and safety in mind, offering electrical isolation and long-term durability. If you’re designing or upgrading a building automation system that uses Daikin equipment, these Modbus modules are a secure investment for optimizing energy use and reducing downtime.

Still unsure which module fits your Daikin system? Contact our team of experts to get personalized advice and product selection support. We're here to help at every step of your integration process.

Explore the available Daikin Modbus modules and discover the full technical specifications to find the perfect fit for your application.