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Unipi Neuron S103 (Raspberry Pi 4)

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Unipi Neuron S103 (Raspberry Pi 4) is a programmable logic controller designed for automation, control, regulation and monitoring. The S103 (Raspberry Pi 4)’s universal architecture includes digital and analog I/Os, making it suitable for simple installations. The controller also features a single RS485 serial interface and a 1-Wire interface for connecting digital humidity or temperature sensors. The default Neuron S103 variant based on Raspberry Pi 3 Model B is available on this link.

Features

  • universal architecture
  • compact size, durable aluminium chassis (IP20 protection) serving as a heatsink
  • integrated Raspberry Pi 4 Model B computer (quad-core CPU, 2/4/8 GB RAM)
  • designed for DIN rail mounting
  • features RS485 serial line for Modbus communication, connection of extension modules and other applications
  • software openness (based on Linux OS)

Note: The product is not compatible with the Mervis system.

Neuron
Memory card
Power supply

259,00 € - 395,98 €
214,05 € - 327,26 € excl. VAT
Less than 20 items in stock

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Basic description

Unipi Neuron S103 (Raspberry Pi 4) is a programmable logic controller designed for automation, control, regulation and monitoring. The S103 (Raspberry Pi 4)’s universal architecture includes digital and analog I/Os, making it suitable for simple installations. The controller also features a single RS485 serial interface and a 1-Wire interface for connecting digital humidity or temperature sensors. The default Neuron S103 variant based on Raspberry Pi 3 Model B is available on this link. This product does not currently support the platform Mervis.

Basic features

Digital inputs 4

Raspberry Pi 4 Model B computer
(quad-core 1.5GHz CPU)
Selectable RAM capacity (2/4/8 GB)
2× USB 2.0, 2× USB 3.0
1× 1Gbit Ethernet
Wi-Fi, Bluetooth (2× HDMI port)
Aluminium chassis (IP20, heatsink)

Digital outputs 4
Analogue inputs 1
Analogue outputs 1
RS485 serial interface 1
1-Wire bus 1

Inputs & outputs description

Digital inputs (DI) are designed to read binary logic states represented by direct voltage levels. That makes them suitable for reading data from various binary sensors and devices such as switches (on/off), motion sensors (movement detected/not detected), liquid level sensors (full tank/empty tank) etc. 

Digital outputs (DI) are intended for switching various binary devices (lighting, smart door locks, drives of shutters and blinds etc.) through direct voltage. DO's also feature a Pulse-Width Modulation (PWM) function allowing to use the output for analogue control. 

Analog input (AI) is designed to measure voltage, current or resistance to read values from various analogue sensors such as thermometers, pressure meters, tensometers etc.

Analog output (AO) serves for control of multi-state external devices through direct voltage or current and is suitable for control and regulation of devices such as three-way valves, heat exchangers, electric motors etc. 

Computing module

As a computing module, the controller uses an integrated Raspberry Pi 4 Model B computer featuring quad-core 1.5GHz CPU and RAM memory with selectable capacity (2, 4 or 8 GB). That gives them more than enough performance for various performance-demanding applications. MicroSD memory cards are used as memory storage.

Communication interfaces

Neuron controllers are by default provided with RS485 serial lines. This type of interface usually uses the Modbus RTU protocol and can be used to communicate with various devices such as Extension xS extension modules, energy meters, touchscreen HMI displays, controllers from other vendors, various sensors etc. A single bus can support dozens of devices while the bus' length can reach up to several hundred meters.

A single 1-Wire bus is also included. This interface uses 2-3 conductors for collecting data from various 1-Wire sensors such as thermometers, humidity meters, light intensity sensors etc.). A single 1-Wire bus supports up to 15 devices, the overall length of the bus can reach up to 100 meters. 

All Neuron models also feature a single Ethernet port for network communication. The S103 (Raspberry Pi 4) model is equipped with a 1Gbit Ethernet port.

Software options

Thanks to the software openness of Unipi controllers customers can choose from a broad range of software solutions and are not limited to a single platform. Among supported solutions are both commercial and open-source systems. Visit the Guide for choosing the right software for the list of other supported solutions.

The main supported solution is the Mervis control system - a platform developed in accordance with the IEC 61131-3 standard for PLC programming, that includes SCADA interface for remote management and monitoring, a comprehensible development environment, a human-machine interface (HMI) editor and an online/on-premise database for storing historical data and retrospective analysis of the controlled technology's operation. 

Aside from commercial platforms you can also choose any from the list of supported open-source solutions, or use the EVOK API (Websocket, REST,...) Modbus TCP, SysFS or other tools for implementing your own logic in any programming language. Visit this link for the list of supported software solutions. 

Package contents

  • Neuron controller
  • removable screw terminals
  • DIN rail holder (35 mm)
  • 2× DIN rail holder mounting screws
  • 1× grounding screw
  • instruction leaflet
  • Mervis license request

Other features

All components of the controller are encased within a durable aluminium chassis (IP20 protection). On S103 (Raspberry Pi 4) the chassis also serves as a heatsink for the computing module. The controller is designed for mounting on a standard DIN rail (35 mm). 

Neuron product line overview

Model DI DO RO AI AO RS485 Common features
Type S, size on a DIN rail =  4 modules = 7 cm  
S103 (Raspberry Pi 4) 4 4 - 1 1 1 Raspberry Pi 4 Model B
(quad-core 1.5 GHz CPU)
selectable RAM capacity (2/4/8 GB)
2× USB 2.0, 2× USB 3.0
1× 1Gbit Ethernet
Wi-Fi, Bluetooth
(2× micro HDMI port)
Aluminium chassis (IP20, heatsink)
S103 4 4 - 1 1 1 Raspberry Pi 3 Model B
(quad-core 1.2 GHz CPU)
1 GB RAM
4× USB 2.0
1× 10/100Mbit Ethernet
Wi-Fi, Bluetooth
(HDMI port)
Aluminium chassis (IP20)
S103-G1 4 4 - 1 1 1
S103-IQRF2 4 4 - 1 1 1
Type M, size on a DIN rail = 8 modules = 14 cm
M103 12 4 8 1 1 1
M203 20 4 14 1 1 1
M303 34 4 - 1 1 1
M523 8 4 5 5 5 2
Type L, size on a DIN rail = 12 modules = 21 cm
L203 36 4 28 1 1 1
L403 4 4 56 1 1 1
L523 24 4 19 5 5 2
L533 12 4 10 9 9 3

1) GSM/GPRS module
2) IQRF wireless network coordinator (learn more)

Further info

Documentation

Instruction leaflet
Technical and safety information
download
Modbus register map
Table overview of Modbus registers
download
Certification
Declaration of conformity
download
Product datasheet
Datasheet of the product
download

CPU Quad-core (1.5 GHz)
RAM Selectable capacity (2 GB, 4 GB, 8 GB)
USB 2.0
Ethernet 1 Gbit
Digital inputs 4
USB 3.0
Digital outputs 4
Analog inputs 1
Analog outputs 1
RS485 interface
1-Wire bus Yes (galvanically isolated)
Power 24 V DC¨
Mounting DIN rail (35 mm)
Dimensions 70 mm × 90 mm × 60 mm
RTC backup Max. 7 days
Weigth 325 g
Neuron

Unipi Neuron S103

239,00 €
197,52 € excl. VAT

More than 20 items in stock Show variants