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Modbus Displays and IO Modules | MOD-RI-3B Modbus Room Interface Module, 3 Buttons Display

Modbus Room Interface Module, 3 Buttons Display

Datasheet (621kB)

The MOD-RI are room interface modules designed to provide room control interface for the building management systems with Modbus communications. The MOD-RI units have built-in (backlit) display that shows the system status including day/night mode, heating/cooling, fan speed, up and down indicating arrows (set via Modbus). Depending on the model two, three or four push buttons can be used to change the setpoint, the system mode and the fan speed.

The MOD-RI units can also display alarm conditions using white, red and amber display backlight together with alarm codes.

The units have built-in temperature measurement. Additonal Inputs and Outputs include: 1 Digital Input, 1 NTC10/Resistive Input, 2 Digital Triac Outputs, 1 Analogue 0..10Vdc Output. These allow the units to be used also as Modbus Input and Output Modules.

The units have also modern sleek design and they can be wall mounted.

Relative humidity option available for display and monitoring.


  • Modbus Room Interface and I/O-Module
  • Attractive Wall Mounted Room Enclosure (for UK/European/US mounting)
  • Attractive Backlit LCD Display
  • Display indicates the System Status; Temperature, Fan Speed, Up and Down Direction, Heating and Cooling, Optional Humidity
  • Alarm Function to Indicate Alarm Conditions
  • 2, 3 or 4 Push Buttons Depending on the Model for User Interactions

Display Examples:-

Modbus to M-Bus Converter Integration to Sedona Modbus Master.



Select from Relative-Humidity-Option:
RH - Relative Humidity Option, 2% Accuracy
Select from CO2-Sensor-Option:
CO2 Sensor Option, 0-5000ppm