Industrial Shields M-DUINO PLC Arduino Ethernet 38R I/O Relay PLUS

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Industrial ShieldsSKU: RB-Ind-24
Manufacturer #: IS.MDuino.38R+

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Sale price £380.73 Regular price £415.12

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  • Industrial Shields M-DUINO PLC Arduino Ethernet 38R I/O Relay PLUS
  • Features 12 Inputs and 22 Outputs
  • Offers a full/half duplex RS485 port and a µSD Socket
  • Works directly with an SD memory card

This is the Industrial Shields M-DUINO PLC Arduino Ethernet 38R I/O Relay PLUS technology designed for professional use. This PLC has 34I/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. Can possibly be used with MODBUS RTU using the RS485 port working as a hardware Serial.

Industrial Shields M-DUINO PLC Arduino Ethernet 38R I/O Relay PLUS - Click to Enlarge

This PLC can be programmed using the Arduino IDE platform. The PLC M-DUINO is programmed through the USB ports. This PLC can also be programmed through Ethernet port remotely.

This offers immediate access to the program, maintain 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 an instantaneous connection.


  • 8 x 10bit Analog (0-10Vdc) / Digital (24Vdc) Inputs, configurable by software
  • 4 x Interrupt Input (24Vdc). “Can work like Digital Input (24Vdc)”


  • 16 x Relay outputs (220Vac –‐ 5A)
  • 6 x Analog (0–‐10Vdc, 8bit) / Digital (24Vdc) Output


  • (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

 Other technical

  • RTC (Real Time Clock. NOTE: I2C port used. See pinout modification)
  • µSD Socket (using SPI port, chip select D53 pin)
  • 100x75x115mm
  • DIN Rail mounting
  • Max consum.: 1.2A
  • Flash Memory: 256kB (8kB for bootloader)
  • SRAM: 8kB
  • EEPROM: 4kB
  • Clock Speed: 16MHz

Customer Reviews

Based on 1 review
Excellent Alternative to Traditional PLC's

For the price, has a huge number of A/D I/O's along with a number functions which often require additional modules, such as RTC, Ethernet, uSD, etc. Also easily configurable. Doesn't have the name, availability and ubiquity of AB or Siemens, but also doesn't have the pricetag.

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