ANALOG INPUTS

Voltage variation between –Vcc (or GND) and +Vcc, can take any value. An analog input provides a coded measurement in the form of a digital value with an
N-bit number. In Digital and Analog I/O there’s self insulation, so its posible to connect them in a different power supply than 24 V.

Inputs: (6x) Analog (0-10Vdc) / Digital (5-24Vdc) configurable by software.

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TYPICAL CONNECTION

DIGITAL INPUTS

Voltage variation from –Vcc (or GND) to +Vcc, with no intermediate values. Two states: 0 (-Vcc or GND) and 1 (+Vcc). In Digital and Analog I/O there’s self
insulation, so its posible to connect them in a different power supply than 24 V.

Inputs: (7x) Digital Isolated (7-24Vdc) and (6x) Digital (7-24Vdc) configurable by software.

All digital inputs are PNP.

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TYPICAL CONNECTION

- Digital Isolated Input

- Digital No Isolated Input

INTERRUPT INPUTS

Interrupt Service Rutine.  A mechanism that allows a function to be associated with the occurance of a particular event. When the event occurs the
processor exits immediately from the normal flow of the PLC program and runs the associated ISR function ignoring any other task. 

Interrupt	Pin Arduino Mega	Pin M-Duino
INT0	2	I0.5/INT0
INT1	3	I0.6/INT1

    - I0.5/INT0 and I0.6/INT1 also as Pin3 and Pin2. Enable Interrupts turning ON the switches number 3 and 4 of down communication switches.

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TYPICAL CONNECTION

In this example we activate INT0 using pin I0_5 from M-duino board. When there’s a change

#define INTERRUPT I0_5 //other pins: I0_6, I2_6, I2_5, I1_6, I1_5 (M-Duino) I0_0, I0_3, I0_2, I0_1 (Ardbox)

volatile bool state = false;

void setup() {
  pinMode(INTERRUPT, INPUT_PULLUP);
  attachInterrupt(digitalPinToInterrupt(INTERRUPT), function_call_back, CHANGE);
}

void loop() {
  if (state == true){
    Serial.println("Interrupt activated");
    state = false;
  }
}

void function_call_back(){ //Change led state
  state = true;
}