Unipi Axon S205

Features

• combination of digital inputs and relay outputs
• 16 I/Os and two serial lines in a 4 DIN package 
• RS485 serial line + 1-Wire bus
• durable aluminium chassis (IP20 protection), wider operating temperature range
• integrated industrial computer (quad-core CPU, 1 GB RAM)
• onboard 8GB eMMC memory
• designed for DIN rail mounting
• software openness (based on Linux OS)
• preinstalled Mervis software (can be manually reflashed)

Description

I/O architecture of the UniPi Axon S205 model is focused on a higher number of digital inputs and relay outputs. Thanks to 8 digital inputs and 8 relay outputs, the S205 can offer an I/O number comparable with larger units while retaining its compact dimensions. That makes the S205 especially suitable for smaller automation tasks.

Inputs & Outputs

8 digital inputs (DI) are designed for reading logical states (true or false), which are represented by levels of DC voltage. That makes them suitable for reading two-state sensors such as switches (on/off), movement sensors (movement/no movement), water level sensors (water present, no water) etc. The software detects logical 1 (true) if the input voltage between given DIx.y and DIGND is between 5-35V. If the voltage is lower than 3.5V, the state is evaluated as 0 (false)

8 relay outputs (RO) are used for control or switching of devices with higher current loads. ROs are thus suitable for controlling light bulbs, thermoelectric valve drives, water heaters, pumps etc. Relay outputs on UniPi controllers are rated for 5A max. current at 230V AC/30V DC voltage.

Communication interface

The unit features a single RS485 serial line. This type of serial line most often uses the Modbus RTU protocol. It can be used for communication with a wide variety of devices such as energy meters, touchscreen HMI panels, PLCs from other vendors or our Neuron xS extension modules. The bus can communicate with up to 32 devices with its total length being up to several hundred meters.  

Included is a single 1-Wire bus, using 2 or 3 conductors for communication with simple sensors such as thermometers, humidity meters or light intensity meters. A single bus can communicate with up to 15 sensors with a maximum total length of the bus up to 100 meters. 

For network communication, a single 1Gbit Ethernet is provided. 

Software options

Customers can choose from a wide variety of software solutions thanks to the open nature of Axon controllers and are not limited to a single platform. Available are both professional and open-source solutions.

Our main supported solution for UniPi controllers is the Mervis. This platform is developed in accordance with IEC 61131-3 PLC programming standard and contains SCADA interface for remote management and monitoring, comprehensible development environment, user interface (HMI) editor and online/on-premise database for data storage and retrospective operation analysis of monitored technologies. 

Aside from commercial platforms, several open-source solutions are available as well. Alternatively, customers can use their own code or implement Axons into already existing software solutions through the use of EVOK open-source API.

Visit this link for supported software overview. 

Other features

8GB eMMC onboard memory provides a high degree of reliability during repeated rewrites compared to systems using memory cards.

All components are protected by a durable anodized aluminium case providing IP20 protection. The unit's size is 4 DIN modules, DIN rail holder is included in the package.

Technical parameters

Further info

• Introduction to the Axon product line
• Choosing the right software