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UniPi Neuron Extension xS10


Neuron xS10 is an extension unit for Neuron and Axon programmable logic controllers, allowing the user to extend automation networks by adding more I/Os. The xS10's architecture offers a combination of additional digital inputs and relay outputs. 

The product does not contain a computing module and cannot be used separately. 

Power Supply

158,99 € - 186,65 €
131,40 € - 154,26 € excl. TAX


The Neuron xS10 is an extension module for the UniPi Neuron PLC product line. The module is based on the Neuron S103 controller, the computing module is however replaced by an additional I/O group. The xS10 model features a combination of digital inputs and relay outputs. 

The module's I/O boards feature their own processors controlling all inputs and outputs. In the case of a controller failure, the module is thus able to maintain basic functionality. 

Inputs & Outputs

16 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 5-30V. If the voltage is lower than 3.5V, the state is evaluated as 0 (false)

8 relay outputs 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

Extension modules communicate through the RS485 interface (Modbus protocol). Connection manual for extension modules can be found on this link

Additional functionality

Along with standard I/O functionality, the module offers several functions to enhance the module's performance and to allow it to react to critical events.

Digital inputs feature Direct Switch functions allowing for connecting digital inputs with relay outputs. Direct Switch can be configured for one of three modes: Copy (switching output by active input), Invert (output is switched by inactive input) and Toggle (output is switched by each input change). Direct Switch is independent of the control software and is thus suitable for applications demanding a lowest possible response time (such as lighting control).

Default setting is a function allowing each processor to save its default configuration. This configuration is loaded after every device reboot triggered either by manual restart or by a power outage.

MasterWatchdog feature monitors the communication between CPU and I/O board processors. If no exchange occurs within a pre-set timeframe, the MasterWatchdog automatically resets the device and I/O modules back into default settings.

Device addressing and the DIP switch settings

Addressing the extension module can be done either via control software running on the remote master control unit or can be set manually via integrated DIP switch. The DIP switch allows the user to set up to 4 bits of address and is evaluated in preference to software settings. If the address on DIP switch is set to “0000”, all DIP switch settings are ignored and the software settings take priority.

Standard Neuron model overview

Product DI DO RO AI AO RS485 Common features
Type S, size on DIN rail: 4 modules = 7 cm 1-Wire bus
Ethernet 10/100 Mb
4 × 1.2 GHz CPU
S103 4 4   1 1 1
S103-G* 4 4   1 1 1
S103-IQRF** 4 4   1 1 1
Type M, size on 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
M403 4 4 28 1 1 1
M503 10 4 5 5 5 2
Type L, size on DIN rail: 12 modules = 21 cm
L203 36 4 28 1 1 1
L303 64 4   1 1 1
L403 4 4 56 1 1 1
L503 24 4 19 5 5 2
L513 16 4 10 9 9 3
Extension modules, size on DIN rail: 4 modules = 7 cm
xS10 16   8     1

Extension modules communicate over Modbus. It is possible to connect them to the control unit via a RS485 interface. Extension modules are compatible with any control unit with the RS485 interface and Modbus support.

xS30 24         1
xS40 8   14     1
xS50 6   5 4 4 1

*Has integrated wireless GPRS module.
**Has integrated TR-76D smart IQRF transceiver

Digital inputs 16
Relay outputs 8
Dimensions 90 mm × 70 mm × 60 mm
RS485 interface Yes
Weigth 310 g
Mounting DIN (35 mm)
Power 24 V DC
UniPi 1

Magnetic contact

7,90 €
6,53 € excl. TAX

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