UniPi Neuron S103 is a universal control unit. It is a compact PLC (Programmable Logic Controller).
Raspberry Pi 3 model B inside.
UniPi Neuron S103 is a universal control unit. It is a compact PLC (Programmable Logic Controller). You can use Neuron S103 as a smart home controller, it is also great for energy consumption monitoring, data collection along with storing it to the cloud or as a powerful and feature-rich gateway for other devices (e.g. boilers). It features digital inputs, transistor outputs, and serial interface.
Compared to Neuron M and Neuron L, it has less I/Os and is more compact. It has integrated DIN rail mounting for installation in racks and distribution boxes where it takes 4 modules (1 module = 17.5 mm). Neuron units have the degree of protection IP20.
Standard Neuron model overview
|Type S, size on DIN rail: 4 modules = 7 cm||1-Wire bus
Ethernet 10/100 Mb
4 × 1.2 GHz CPU
1 GB RAM
|Type M, size on DIN rail: 8 modules = 14 cm|
|Type L, size on DIN rail: 12 modules = 21 cm|
|Extension modules, size on DIN rail: 4 modules = 7 cm|
Extension modules communicate over Modbus. It is possible to connect them to the control unit via RS485 interface. Extension modules are compatible with any control unit supporting Modbus and having RS485 interface.
*Has integrated wireless GPRS module.
Neuron has a very short response time - response time between a signal on input and reaction on output can reach 0.5 ms. It has 1 GB RAM and quad-core 1.2 GHz CPU. Generally, Neuron offers excellent performance parameters of professional PLC (Programmable Logic Controller). All included in a resistant aluminum case.
To 1-Wire channel you can connect up to 15 digital thermometers. With digital outputs and external relays, you can control the boiler. Connect electrometers or gas meters to digital inputs and measure your consumption. With analog output you can read from analog thermometers such as NTC or PT1000 or you can regulate boiler performance and Ethernet interface allows connection to the local network.
Neuron is suitable for all non-safety systems yet you can connect security system controller over Modbus. Generally, Modbus allows you to control any external device supporting this protocol.
Neuron is CE and EMC tested. According to standard, all UniPi Neuron products can be used in:
See the EU declaration of conformity in product file tab. In accordance with European standards, Neuron is a professional control unit. For the US market, it represents an excellent automation development kit.
Technological specification of the product
Guide to set up and use this device, technological documentation
Modbus register map
Table overview of Modbus registers
Regulatory Compliance and safety information added to each unit
Declaration of conformity
|1-Wire bus||Yes (Galvanically isolated)|
|Power||24 V DC|
|Mounting||DIN (35 mm)|
|Dimensions||70 mm × 90 mm × 60 mm|
|CPU||4 × 1 GHz|
|RTC backup||maximum 7 days|