Data Sheet
Ref. IS.MDUINO.XXX 
1.5  General Features 
CONECTABLE PLC ARDUINO 24Vcc M-DUINO 
MODEL TYPE 
B Zone 
B+C Zone 
B+C+D 
Zone 
Input Voltage 
12 to 24Vdc 
Fuse protection (2.5A) 
Polarity protection 
I max. 
1.5A 
Size 
101x119.5x70.1 
101x119.5x94.7 
101x119.5x119.3 
Clock Speed 
16MHz 
Flash Memory 
256KB of which 8KB used by bootloader 
SRAM 
8KB 
EEPROM 
4KB 
Communications 
I2C – Ethernet Port – USB – RS485 – RS232 -- SPI 
– (3x) Rx, Tx (Arduino pins) 
Max232-Max485-
W5500 
Type of signals 
An/Dig Input 10bit 
(0-10Vcc) 
0 to 10V 
Input Impedance: 39K 
Separated PCB ground 
Digital Isolated Input 
(24Vcc) 
5 to 24Vdc 
I min: 2 to 12 mA 
Galvanic ISOLATION 
* Interrupt isolated 
Input HS (24Vcc) 
5 to 24Vdc 
I min: 2 to 12 mA 
Galvanic ISOLATION 
Analog Output 8bit 
(0-10Vcc) 
0 to 10Vdc 
I max: 40 mA 
Separated PCB ground 
Digital Isolated 
Output (24Vcc) 
5 to 24Vdc 
I max: 0.3 A 
Galvanic ISOLATION 
Diode Protected for Relay 
Digital Isolated 
Output Relay 
220V Vac 
I max: 5A 
Galvanic Isolation 
Diode protected for Relay 
PWM Isolated Output 
8bit (24Vcc) 
5 to 24Vdc 
I max: 0.3 A 
Galvanic ISOLATION 
Diode Protected for Relay 
Expandability 
I2C - 127 elements - Serial Port RS232/RS485 
* By using this type of signal can no longer use Digital signal 
(24Vdc) 










