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The I/O modules of the MINI series were developed to complement the MIX series. The output modules of the MINI series also have override switches, unlike the MIX series. Thanks to their built-in lighting, cooling and heating algorithms, the modules can even be used as independent controllers and support time relay modes.

By default, the devices are able to communicate using the two most popular communication protocols (Modbus ASCII, RTU, TCP/IP and BACnet MSTP, IP, which protocols can be selected with DIP switches.


IP version modules can also be used as transparent MODBUS TCP/MODBUS RTU or ASCII gateways.


As the modules support open protocols, they can be easily applied in both new and existing installations. Addressing with rotary switches simplifies and speeds up commissioning.

The built-in USB port allows you to set up the products without using an additional power supply. 

Main features:

  • 14 different types

  • Small size

  • Override switches

  • Built-in lighting, cooling and heating control modes

  • Presence sensor input

  • Each digital input can also be used as a high-speed counter (up to 100Hz)

  • The universal inputs have a 16-bit resolution, which increases the accuracy of the measurement

  • Wide range of temperature sensor element support (NTC, PT1000, Ni 1000, etc..)

  • Automatic input signal recognition for universal inputs

  • Digital outputs 230 V AC max. 3 A or 8 A allowing direct control without additional auxiliary relays

  • Triac outputs: 0.5 A @ 24 V AC, 0.5 A @ 230 V AC

  • Analogue output with a maximum load of 20 mA, enabling the control of 12VDC relays or solid-state relays with PWM function

  • LED feedback on the status of inputs and outputs

  • Supported open communication standards: BACnet or Modbus

  • Built-in Modbus TCP/IP/ RS485 gateway (only for the IP version)

  • 1x Fast Ethernet port (only for the IP version)

  • Simple and fast addressing from 1 to 99



Universal Inputs (UI)
Each input is also suitable for 16-bit resolution by supporting the following types of sensors:

  • Temperature input supports the following types of sensor elements: 10K3A1, 10K4A1, Carel 10K, 20K6A1, 2.2K3A1, 3K3A1, 30K6A1, SIE1, TAC1, SAT1, Pt1000, Ni1000

For Pt1000 and Ni1000 inputs, use only 16-bit resolution!

  • Voltage input 0-10 V DC: input resistance 100 kΩ accuracy ±0.1%, measurement resolution 3 mV 12-bit resolution_cc781905-5cde-3194-cf583-bb5b for and 1 mV for 16-bit resolution

  • Current input 0-20 mA (external 200 Ω resistor required)

  • Resistance input 0-1000 kΩ: measurement resolution at 20 kΩ load 20 Ω @ 12-bit resolution and 1 Ω @ 16-bit resolution

  • Voltage-free input

Digital inputs (DI)

  • Voltage-free inputs

  • Fast counter inputs (up to 100 Hz), counter register stored in EEPROM

Analog outputs (AO)

All outputs with 12-bit ADC, thanks to 10 mV resolution and accuracy less than ±0.5%.

The following output modes are supported:

  • Output 0-10 V DC maximum load 20 mA

  • PWM: 0.01Hz, 0.1Hz, 1Hz, 10Hz, 100Hz

Digital outputs (DO)

  • Relay output (NO) max. 3 A, 230 V AC/30 V DC

  • Relay output (NC/NO) max. 8 A, 230 V AC/30 V DC

Triac outputs (TO)

  • Triac outputs: 0.5 A @ 24 V AC, 0.5 A @ 230 V AC


  • ARM Cortex-M3


  • RS485 interface half duplex

  • 1x Fast Ethernet - only for the IP version

  • Up to 99 devices on the bus

  • Protocols: Modbus or BACnet

  • Baud rate: from 2400 to 115200 bps

Supply voltage

  • 24 V AC/DC

Device housing

  • Dimensions (WxDxD): 35x110x62 mm

  • Material plastic, self-extinguishing (PC/ABS)

  • DIN rail mountable (according to DIN EN 50022 standard)

  • Cooling: internal air circulation

Environmental parameters

  • Operating temperature: -10°C to 50°C

  • Storage temperature: -40°C to 85°C

  • Relative humidity: from 5% to 95%, non-condensing

  • IP protection: IP40 - for indoor use


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