Home automation electronics and SW development - Ing. Pavel Sedláček - Arduino
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Homepage > Railduino module > Module purchase > Railduino 1.3

Railduino 1.3

Product code: RAIL_1_3
Price VAT included:€ 155,96
Price VAT excluded:€ 128,89
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Original price:€ 167,96
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Brand: SEDtronic
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Amount: pc/pcs


Railduino Module is individually usable programmable automatic device (Arduino – compatible PLC), which is possible to use in many different applications – from simple tasks to complex processes. In the production it was set up to work in conjunction with a master system, for example Loxone, without any other intervention. Then the master system is able to control digital outputs of the module Railduino (the external equipment e.g. pumps, LED etc.) or read values from digital / analogue inputs (e.g. push buttons, contacts etc.).

Railduino Module enables evaluation of the digital sensores / switches through 24x digital inputs, which are optically separated, the max. input voltage is 24V. Furthermore, it is possible to read status of 3x analogue inputs through a 10-bite AD convereter, the range of analogue values 0-10V. Through 12x digital outputs (relay) it is possible to control devices with max. current of 5A at 230V per one output. Other outputs include 4 x PWM outputs, which are switched using FET transistors, max. voltage 24V DC, max. switching current 2 A / output, max. load 25 W / output, frequence 490 Hz.
Railduino Module is equipped with communication buses, which enable reading of the given states on the inputs alternatively controlling of the outputs. It is a serial bus RS485 (plain 485 or protocol Modbus RTU)  that makes possible to connect a superior control system, additional Railduino modules or other devices. Further it incorporates a 1-wire bus (Dallas-Maxim), which enables to connect favourite temperature sensores DS18B20, or sensores DS2438 (e.g. UNICA 1-wire sensors) to the module. An additional function is communication via Ethernet, thus the use of LAN connectivity (UDP or Modbus TCP).

The communication protocols for the bus RS485 and Ethernet are preprogrammed in plain 485 or MODBUS RTU (for serial link RS485) and in UDP packets or MODBUS TCP (for Ethernet). Settings of this communication is described in the chapter Settings.
SW: The original FW for Railduino v1.3 with UDP / 485 protocol is available HERE

- 24x digital inputs – optically separated, max. input voltage 24V DC
- 12x relay outputs – galvanically separated, max. current 5A at 230V AC per 1 output
- 3x analog inputs – input voltage 0 - 10V against the AC terminal, resolution 1024 bits
- 4x PWM digital outputs – max 25 W / 1 output, max 24V DC, f = 490 Hz
- 1-wire c
ommunication – possibility to connect the temperature sensors Dallas DS18B20 (max. 5 pcs) or DS2438 sensors (eg. UNICA 1wire sensor module), resolution 0,1°C, temperature measurement  request every 30 seconds
- I2C communication – reserved for possibility to connect for example access systems, RTC, contact indicator etc.
RS485 communication  – possibility of serial communication with a master systems (e.g. Loxone Modbus extension)
- USB communication – possibility to connect to PC for programming purposes – the conector is inside the device
- Ethernet communication – possibility to connect to LAN e.g. for the Internet (only the  Railduino RTU/TCP variant)
- Status LED diode – indication of operation
- Reset button – restart of the module
- Switch DIP – for the address setup of the Modbus protocol – up to16 addresses
- Terminator – RS485 bus termination jumper


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