ARDUINO IDE

Arduino IDE is the Original platform to program Arduino boards. This cross-platform application is available on Windows, macOS and Linux and under the GNU General Public License.
Arduino IDE supports C and C++ code structuring. Industrial Shields recommend using Arduino IDE to program Arduino Based PLC’s, but any Arduino compatible software are compatible with Industrial Shields Controllers.

Apart from that, Industrial Shields bring the possibility to select your Arduino based PLC into your Arduino IDE and compile your sketches for the different PLC’s.

Download the Arduino IDE 1.8.6: 

Windows Installer

MAC OSX

Install Industrial Shields units to Arduino IDE:

Industrialshields boards

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: (16x) Analog Inputs (0-10Vdc) / Digital (7-24Vdc) configurable
by software.

To know more about analog inputs... 

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: (16x) Analog Inputs (0-10Vdc) / Digital (7-24Vdc) configurable by software.

              (20x) Isolated Digital (7-24Vdc). 

All digital inputs are PNP.

To know more about digital inputs...

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 program and runs the associated ISR function ignoring any other task. 

    - 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.
    - I1.5/INT4 and I1.6/INT5 also as Tx1 and Rx1. Enable Interrupts turning ON the switches number 1 and 2 of up communication switches.
    - I2.5/INT3 and I2.6/INT2 also as SCA and SCL. Enable Interrupts turning ON the switches number 3 and 4 of up communication switches. In this case you won’t be able to use I2C.

To know more about interrupt inputs...

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;
}

Ethernet

Ethernet  is the technology that is most commonly used in  wired local area networks  ( LANs ). A LAN is a  network  of computers  
and other electronic devices that covers a small area such as a room, office, or building. It is used in contrast to a  wide area  
network (WAN) , which spans much larger geographical areas.
Ethernet is a  network protocol  that controls how data is  
transmitted over a LAN. Technically it is referred to as the IEEE 802.3 protocol. The protocol has evolved and improved over time  
to transfer data at the speed of a gigabit per second.

Our M-Duino family incorporate the integrated W5500 IC.

WX5500  is a Hardwired TCP/IP embedded Ethernet controller that provides easier Internet connection to embedded systems. This chip enables users to have Internet connectivity in their applications by using the single chip in which  TCP/IP  stack, 10/100  
Ethernet MAC and PHY are embedded. The W5500 chip embeds the 32Kb internal memory buffer for the Ethernet packet  
processing. With this chip users can implement the Ethernet application by adding the simple socket program.  SPI  is provided for 
easy integration with the external microcontroller. 

Hardware   

Hardware configuration 

#include <Ethernet2.h> 

// use Ethernet.h if you have a M-Duino V7 version
#include <Ethernet2.h>
// mac address for M-Duino
byte mac[] = { 0xBE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
// Ip address for M-Duino
byte ip[] = { 192, 168, 1, 100 };
int tcp_port = 5566;
EthernetServer server = EthernetServer(5566);
void setup()
{
  // initialize the ethernet device
  Ethernet.begin(mac, ip);
  // start server for listenign for clients
  server.begin();
}
void loop()
{
  // if an incoming client connects, there will be bytes available to read:
  EthernetClient client = server.available();
  if (client.available()) {
    // read bytes from the incoming client and write them back
    // to the same client connected to the server
    client.write(client.read());
  }
}

#include <Ethernet2.h>
#include <SPI.h>
byte mac[] = { 0xBE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte ip[] = { 192, 168, 1, 100 };
byte server[] = { 192, 168, 1, 105 }; // Touchberry Pi Server
int tcp_port = 5566;
EthernetClient client;
void setup()
{
  Ethernet.begin(mac, ip);
  Serial.begin(9600);
  delay(1000);
  Serial.println("Connecting...");
  if (client.connect(server, tcp_port)) { // Connection to server.js
    Serial.println("Connected to server.js");
    client.println();
  } else {
    Serial.println("connection failed");
  }
}
void loop()
{
  if (client.available()) {
    if(Serial.available()){
      char s = Serial.read();
      client.write(s); // Send what is reed on serial monitor
      char c = client.read();
      Serial.print(c); // Print on serial monitor the data from server 
    }
  }
  if (!client.connected()) {
    Serial.println();
    Serial.println("disconnecting.");
    client.stop();
    for(;;) ;
  }
}