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Industrial Shields
IS.MDuino.54ARA+ IS.MDuino.54ARA+
M-DUINO PLC Arduino Ethernet 54ARA I/Os Analog /Digital PLUS

M-DUINO PLC Arduino Ethernet 54ARA I/Os Analog /Digital PLUS

InStock 2021-12-31

372.75 € 372.75 EUR

372.75 €

29 Inputs
25 Outputs
RTC, µSD, Ethernet, USB, Full/Half Duplex RS485, RS232, I2C, Modbus

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SKU: IS.MDuino.54ARA+
HS CODE: 8537.10.9160

PLUS version include

Full/Half duplex RS485 port.

µSD Socket

Work directly with the SD memory card.


Possibility to use MODBUS RTU using RS485 port working as a hardware Serial. - RTC (Real time clock available)


Inputs, Outputs, Communications and other technical specifications

Inputs (Arduino Mega included)

– 29 Inputs:

(14x) Analog Inputs (0-10Vdc, 10bit) / Digital Inputs (7-24Vdc) configurable by software.

(9x) Isolated Digital Inputs (7-24Vdc)

(6x) Interrupt Inputs (7-24Vdc). "Can work like Digital Input (24Vdc)


– (1x) Ethernet port.

– (1x) USB port (type B).

– (1x) I2C port. (Interface with other Industrial Shields, sensors, I/Os modules)

– (3x) TTL ports.

– (1x) RS-232 port.

– (1x) HALF/FULL Duplex RS-485 port.

– (1x) SPI external port (Using MOSI,MISO, SS pins of Arduino)

– TCP IP / Modbus TCP. / Modbus RTU

– WebServer capacity

– Industrial Protocols



Outputs (Arduino Mega included)

– 25 Outputs:

(8x) Relay Outputs (220Vac - 5A)

(8x) Analog (0-10Vdc, 8bit) / Digital (5-24Vdc) Outputs and PWM. 

(9x) Digital Outputs (Isolated 24Vdc max)

Other technical specifications

RTC (Real Time Clock. NOTE: I2C port used. See pinout modification)

µSD Socket (using SPI port, chip select D53 pin).

DIN Rail mounting.

Max consum.: 1.2A

Flash Memory: 256kB (8kB for bootloader)



Clock Speed: 16MHz

*Rx,Tx pins are not abailable using RS485. For SPI you need to choose another pin for Select Function (You can choose, SDA, SCL, Rx, Tx, Pins of Arduino)

Industrial Arduino PLC based details

Industrial Automation. The Arduino Programmable Logic Controller

Modular Controller Arduino
This is the first equipment based on the Arduino technology designed for a professional use. This PLC has 58I/Os. It also contains several communication ports which provide more flexibility and control. The M-DUINO family offers the possibility to expand up to 127 modules through I2C, which means that you can have until 7100 Inputs / Outputs in Master-Slave connections, additionally to sensors, etc…

Programming Software
This industrial controller can be programmed using the Arduino IDE platform. See the Documentation menu below to download the software for free.

Instantaneous connection and coding
The PLC M-DUINO is programmed through the USB ports. This industrial PLC can also be programed through Ethernet port remotely. This offers and immediate access to program, mantain and control. Also you can continuously monitor the status for all the variables, inputs, outputs, etc. It is compatible with the Ardbox PLC Range and the Touchberry Pi with instantaneous connection.



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Specifications for M-DUINO PLC Arduino Ethernet 54ARA I/Os Analog /Digital PLUS

Device PLC
CPU Arduino Mega
Price 300-400€
Inputs 21-30
Digital Inputs *See technical details 29
Interrupt Input 6
Analog Inputs (Included as a Digitlal Input) 14
Outputs 21-30
Digital Outputs *See technical details 17
Relay Outputs *See technical details 8
Analog Outputs (Included as a Digitlal Output) 8
Ethernet Yes
RS485 Yes
RS232 Yes
I2C Yes
Serial TTL Yes
µSD Card Socket Yes