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Railduino 2.1 shield box

CZK 499
VAT incl.

412.4 VAT excl.

Railduino shield box cover using DIN rail mounting

Cover box, header pins for LAN shield, box sticker with the connectors description

    On stock    6 pieces

Railduino shield box cover for DIN rail mounting


- possibility to mount the Railduino shield onto the DIN rail
- offering IP protection for power circuits of the Railduino shield
- the hole for the LAN connection must be drilled when using LAN shield connection
- set of header pins for using LAN shield - 2x8pins, 2x15pins
- cover box sticker with description of the Railduino shield connections

Connection to Loxone

A – LAN connection
B – RS485 bus connection

Both connections use UDP communication protocol (User defined protocol) or Modbus protocol (TCP or RTU) 

UDP communication settings in Loxone Config

LAN settings of communication for sensing inputs in Loxone Config:

LAN settings of communication for control of outputs in Loxone Config - address: "/dev/udp/"

RS485 settings of communication in Loxone Config:

MODBUS TCP communication settings in Loxone Config

Modbus mapa a adresování proměnných

Settings of Modbus TCP - insert Modbus server and set IP and port in Loxone Config:

Settings of Modbus TCP - set the address of the Modbus client - Railduino module

1. UDP protocol - Digital inputs

2. UDP protocol - Relay outputs

3. UDP protocol - Digital outputs - High side switch

4. UDP protocol - Digital outputs - Low side switch

5. UDP protocol - Analog inputs

6. UDP protocol - Analog outputs

7. UDP protocol - 1-wire bus

1. Modbus protocol - Digital inputs

2. Modbus protocol - Relay outputs

1. "What kind of connection to use with Loxone system?"

It depends what are you expecting: LAN connection is fast (delay in terms of microseconds) with immediate responses,
but there is need some workaround in LAN safety settings (subnets, VLANs etc..). RS485 is slower (delay in terms of
miliseconds), but is simple, safe and reliable.

2. "How long it will take from pushing the wall switch to actually switching on the lights?"

Whole procedure of communication from Railduino to Loxone and back can be described as follows:
1. Request processing by Railduino (pusching the button) and sending the satet to Loxone – in case of LAN max.
20ms, in case of RS485 max. 30ms
2. Processing in Loxone (reception of information and making of further steps) and sending command to
Railduino– in case of LAN max. 25ms, in case of RS485 max. 35ms
3. Processing in Railduino module (switching the lights on) ‐ in case of LAN max. 20ms, in case of RS485 max.
So the react time will be max. 95ms (in both cases of LAN or RS485).
Delay is minimum, longer delay will be created by powering up the current power source of LED lights.

3. "Is it possible to connect more then one Railduino to the same bus?"

Yes, every modul has its own address which is set using the DIP switch settings. It is possible to connect up to 15 modules
operating at the same bus LAN or RS485.

4. "How is the Railduino programmed with in Loxone Config? Does thy system detect inputs and outputs?"

It is neccessary to insert the virtual inputs and outputs into the Loxone program and make the correct settings (in case of
LAN connection). More details are in the Loxone example file which can be downloaded in the download section.

5. "What is the power consumption of Railduino module?"

In the worst scenario – Railduino module with LAN connection (24V power supply) has consumption of approx. 120mA
(with all relays off) and consumption of approx. 230mA (all relays on). Therefore power consumption is approx. 6W max.
Minimal consumption can be lower then 2W (no LAN and all relays off).

6. "Digital inputs are not working well, I have to push the switch two times, what is the problem?"

There is bad settings in the virtual input command settings ‐ Use as digital input must be UNchecked!
Railduino 2.1 manual - operating instructions EN ver. 10/14/2019 DOWNLOAD
Railduino 2.0 manual - operating instructions EN ver. 09/18/2019 DOWNLOAD
Railduino LED manual - operating instructions EN ver. 11/03/2020 DOWNLOAD
Template for Loxone Config CZ/EN ver. 12/30/2021 DOWNLOAD
Compiled firmware for Railduino modules last ver. 02/08/2023 DOWNLOAD
Uncompiled firmware for Railduino modules GITHUB DOWNLOAD
CE Declaration of conformity CZ/EN ver. 1/1/2018 DOWNLOAD