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Unipi Axon

Unipi Axon is our latest PLC product line, designed to be used in monitoring, regulation, smart home, HVAC and many other applications. In its core, Axon is improved and redesigned variant of the Neuron product line. The development goal was to capitalize on Neuron's strengths and to further improve them. Axon thus retains a high degree of modularity and flexibility - two of our products' most significant advantages.

Axon controllers feature up to three input-output (I/O) groups depending on the model, each containing a group of inputs, outputs and/or communication interfaces. It contains 1 (S-series), 2 (M-series) or 3 (L-series) I/O groups.

Each I/O circuit board is controlled by its STM32 processor, which controls inputs and outputs and communicates with the central processing unit (CPU). Processors are using custom firmware containing not only basic I/O functions, but also additional functions and features.

Unipi Axon controllers are powered by a 1.2GHz Allwinner H-5 quad-core CPU. Compared to Neuron series, all Axon models contain internal 8GB eMMC memory. That makes the Axon more reliable and less sensitive to memory aging.

Axon also provides 1Gbit Ethernet and two USB 2.0 ports.

Depending on the model, the Axon product line can offer up to:

  • up to 36 digital inputs
  • up to 4 digital outputs
  • up to 28 relay outputs
  • up to 8 analog inputs
  • up to 8 analog outputs
  • up to 4 RS485 universal bus ports
  • 4x IEC 62386 standard channels for smart lightning control (DALI-compatible)
  • a pair of Ethernet ports
  • 1x WiFi
  • 1x LTE
  • various combinations of the above-mentioned

Depending on the model, the Axon can feature up to 4 RS485 serial lines, an RS232 serial line, a single 1-Wire bus or various combinations of all mentioned interfaces

  • The RS485 most often utilizes the Modbus RTU protocol and can be used for communication with a wide variety of devices such as energy meters, touchscreen HMI panels, PLCs from other vendors or the Neuron xS extension modules. The bus can communicate with up to 32 devices with its total length being up to several hundred meters.
  • The RS232 serial line is most often used for communication with HMI displays, various gateways or closed technologies.
  • The 1-Wire bus then can communicate with up to 15 sensors with a maximum total length of the bus up to 200 meters, using either a 2-wire or 3-wire connection method.
  • USB ports can be used to connect various USB converters (RS-232, RS-485 etc.) or external memory drives. Unipi controllers feature 2 USB 2.0 ports as standard. We do not recommend using the ports to power external devices.

Each Axon also features a single 1Gbit Ethernet for network communication - the exception is the Axon Axon S155 with an additional 10/100Mbit Ethernet port.