Unipi Axon

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UniPi Axon is a brand-new PLC (programmable logic controller) product line designed for MaR/HVAC systems control, smarthome application and utilization in automation and monitoring. Axon is offered in three sizes and six model series and is compliant with highest standards in both home and industrial automation.

Basic hardware characteristics

The Axon product line is offered in three sizes and six model lines. The most numerous type is the Axon S (4 DIN modules size), allowing a wide range of possible applications while retaining compact dimensions. 

Axon S105, M505 and L505

The construction of Axon is highly modular, allowing to create new I/O combination just by swapping I/O boards. Due to this feature, we could create for example the S205 and S215 models featuring 8 digital inputs and 8 relay outputs, or models with 4× RS485 or 2× Ethernet. Thanks to such modularity, we can also design and develop new solutions according to specific customer needs, be it hardware specifications or an OEM customer design.

All Axon models are powered by the quad-core 1.2 GHz Allwinner H5 ARM processor featuring 1 GB RAM and internal 8GB eMMC memory. For quick communication, all units are equipped with 1Gbit Ethernet, Wi-Fi and Bluetooth. Alternatively, it is possible to add other custom wireless technologies according to the customer's needs. By default, all Axons feature a pair of USB 2.0 ports.

Communication interfaces

The S105 basic model comes with universal I/O architecture combining four digital inputs, four digital outputs, a single analogue I/O, single 1-Wire interface (up to 15 digital sensors) and both the RS485 and the RS232 serial lines. 

Anodized aluminium metal cover known from the Neuron product line was retained, Axons are however using black colour for an easy visual distinction between both product lines. Axon is fully certified for the use in households, commercial buildings and light industry.

Depending on the model, Axon can be equipped with

  • up to 36 digital inputs
  • up to 4 digital outputs
  • up to 28 relay outputs
  • up to 8 analogue inputs
  • up to 8 analogue outputs
  • up to 4 RS485 universal lines
  • four IEC 62386-standard channels for smart lighting control (DALI-compatible)
  • a pair of 1Gbit Ethernet ports
  • various combinations of the above-mentioned

Special features

LTE module

The Axon M265 and M565 controllers feature an LTE module and a SIM card slot, allowing them to connect to the LTE high-speed wireless network.

LTE chip type Ublox TOBY-L2
Download speed up to 150 Mbps
Upload speed up to 50 Mbps
LTE bandwidth coverage up to 6 bands
GSM/GPRS coverage up to 4 bands
WCDMA/DC-HSPA+ up to 5 bands

Thanks to the LTE module the controllers can serve as both primary and secondary network connection. In the role of a primary connection, the controller functions as a web access point for the option of remote system management even in locations without cable internet access.  The secondary connection can be used in projects reliant on a stable network connection sending status alerts and system data to a SCADA interface in supervision centres. If the primary connection fails the controller automatically switches to LTE mode, retaining the connection between the supervision and the technology. 

IQRF module

The Axon S175 controller features an IQRF transceiver for wireless communication using the IQRF technology. That allows the S175 to serve as a communication gateway between technologies controlled through I/Os of the controller and various IQRF sensors and devices. Learn more about IQRF and its possibilities on this link. 


By default, all Axon controllers feature pre-installed Mervis platform - a collection of tools and applications for advanced control and regulation. Apart from the control software, the Mervis also contain development environment and user-friendly graphic interface, along with SCADA interface for remote control and monitoring. The platform was developed under the IEC 66131-3 standard for PLC software.

Axons are however compatible with a variety of other software solutions, both commercial and open-source. For more information, visit our overview of other software solutions

Axon model overview

Name DI DO RO AI AO RS485 RS232 1-Wire
Type S, size on a DIN rail: 4 modules (7 cm)
S105 4 4 - 1 1 2 1 1
S115 4 4 - 1 1 4 - 1
S1551 4 4 - 1 1 2 1 1
S1753 4 4 - - - - -
S205 8 - 8 - - 1 - 1
S215 8 - 8 - - 1 1 -
S505 - - - 4 4 1 - 1
S515 - - - 4 4 1 1 -
S6054 - - - - - 1 1 -
Type M, size on a DIN rail: 4 modules (7 cm)
M205 20 4 14 1 1 2 1 1
M2652 20 4 14 1 1 2 - 1
M525 8 4 5 5 5 3 1 1
M535 4 - 5 8 8 2 1 -
M5652 8 4 5 5 5 3 - 1
Type L, size on a DIN rail: 4 modules (7 cm)
L205 36 4 28 1 1 2 1 1
L525 24 4 19 5 5 3 1 1

1 - 2x Ethernet 
2 - IQRF module
3 - IEC 62386 (kompatibilní s DALI)
4 - LTE functionality

Common features

- 1,2GHz quad-core CPU, 1GB RAM
- 1Gbit Ethernet
- 8GB onboard eMMC memory
- Wi-Fi, Bluetooth

More information

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Unipi Axon S105
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Unipi Axon S115
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Unipi Axon M505
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Unipi Axon L205
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Unipi Axon L505
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Unipi Axon M265 LTE
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Unipi Axon S175 IQRF
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