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Unipi Neuron L203

Neuron

Unipi Neuron L203 is a programmable logic controller designed for automation, control, regulation and monitoring. The L203 features a high number of digital and relay I/Os complemented by a single analog I/O and an RS485 serial interface. With a total number of 70 I/Os, the L203 offers the highest number of inputs/outputs of all Neuron controllers. The controller is also provided with a 1-Wire interface for connection of digital temperature or humidity sensors.

Features

  • universal architecture with a very high number of I/Os
  • total of 70 I/Os, best cost-to-I/O number ratio
  • durable aluminium chassis (IP20 protection)
  • integrated Raspberry Pi 3 Model B computer (quad-core CPU, 1 GB RAM)
  • designed for DIN rail mounting
  • features RS485 serial line for Modbus communication
  • software openness (based on Linux OS)
  • Mervis lifetime license as part of the package

Neuron
SD card
Power supply

469,00 € - 545,49 €
387,60 € - 450,82 € excl. VAT
Less than 20 items in stock

pcs

Basic description

Unipi Neuron L203 is a programmable logic controller designed for automation, control, regulation and monitoring. The L203 features a high number of digital and relay I/Os complemented by a single analog I/O and an RS485 serial interface. With a total number of 70 I/Os, the L203 offers the highest number of inputs/outputs of all Neuron controllers. The controller is also provided with a 1-Wire interface for connection of digital temperature or humidity sensors.

Basic features

Digital inputs 36 Common features
Raspberry Pi 3 Model B computer
(1,2GHz quad-core CPU, 1GB RAM)
4× USB 2.0
1× 100Mbit Ethernet
Wi-Fi, Bluetooth, HDMI port
Aluminium chassis (IP20)
Digital outputs 4
Relay outputs 28
Analog inputs 1
Analog outputs 1
RS485 serial interface 1
1-Wire bus 1

Inputs & outputs description

Digital inputs (DI) are designed for reading states of two-state devices such as various digital sensors, switches and buttons, motion sensors etc. All digital inputs feature counter functionality by default. 

Digital outputs (DO) are applicable for switching two-state devices using direct current (DC) such as locks, external relays, contactors etc. DO’s can be also used for analog control thanks to the pulse-width modulation (PWM) function.

Relay outputs (RO) serve for switching devices with higher current draw and devices requiring alternating current (AC) such as water heaters, pumps, contactors or external relays with higher switching current.

Analog input (AI) is designed to measure voltage, current or resistance in order to read values from various analog sensors (pressure meters, thermometers, tension gauges etc.).

Analog output (AO) is used to control and regulate devices such as three-way valves, electric motors, inverter drives, heat exchangers etc. by direct current or voltage.

Computing module

The controller is powered by Raspberry Pi 3 Model B featuring quad-core 1.2GHz CPU and 1GB RAM, giving it 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 100Mbit Ethernet port for network communication

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 Other software overview for the list of other supported solutions.

The main supported solution is the Mervis control system - a platform developed under 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 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
  • lifetime Mervis license code

Other features

All components of the controller are encased within a durable aluminium chassis (IP20 protection). 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× 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

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

CPU 4 × 1 GHz
RAM 1 GB
USB 2.0 4
Ethernet 10/100 BaseT
Digital inputs 36
Relay outputs 28
Transistor outputs 4
Analog inputs 1
Analog outputs 1
RS485 interface Yes
1-Wire bus Yes (galvanically isolated)
Mounting DIN (35 mm)
Dimensions 210 mm × 90 mm × 60 mm
Power 24 V DC
RTC backup maximum 7 days
Weigth 572 g
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